I dramatically reduced a jerky throttle on my Vulcan s by changing the front sprocket from 15 to 16 tooth. This reduced the jerky throttle reduced the engine revs by about 500 rpm for a given road speed and improved the riding experience the bike now rides as it should have from the factory.
This is great. I have been a bit frustrated by the strong engine braking while downshifting. If you don't time the rev-matching perfectly it jerks the bike. I think I'll get one of these devices.
I just ordered mine. I found a 2017 hold over that was just never sold and snatched it up for a steal. I’ve been riding it for a year now and just tossed on the delkevic bullnose 16in and finally got the booster plug in the mail. Friday that’s what I’m doing.
wow that's cool. I love when the dealers run sale on those left over inventory, right time to jump in. I am wondering when would Kawasaki update the vulcan S line up to have some minor updates (my wishlist, round headlight, mid footpeg, bobber fender ). Booster plug install is easy, removing tank and running the wire through could take 15-20 minutes or more.. have fun!
TLY RIDER it went very well. Like you said it was very easy. It took total of twenty minutes from starting with the seat to putting it back on. Ran very smoothly I was very happy how I was able to maintain a steady throttle in 3rd gear at 25 mph with out feeling the typical off/on jerkiness. Thanks for the video by the way. Your placement of the sensor really helped me place mine.
@@_Meriwether I haven't checked / monitored the fuel efficiency prior to the install, but I will monitor the fuel consumption now and report out what am I getting so atleast we can compare to the average advertised fuel consumption.
I bought my 2020 Vulcan S last week and I am still waiting for the reduced reach handlebars before I take delivery. I knew I wanted the booster plg when I decided to buy the Vulcan S. I have the booster plg at home waiting to be installed. Thank you for the video!
@@TLYRIDER Update : I have my new Vulcan S. I have not installed the booster plug yet. I really need to. The throttle is very twitchy. I have been practicing riding up and down my private dirt road, starting and stopping in order to get used to the clutch and throttle. Darn thing almost took off out from under me the first time. I find it impossible to pull the front brake without twisting the throttle!
@@mrq1701 I'm a brand new rider on a Vulcan S too. G2 has a throttle tamer, throttle tub for the Vulcan S which is suppose to smooth out the throttle. I'm hoping that between the tamer and the plug, it will make it overall easier to learn on and control. As for the front brake, a friend adjusted the position of the brake lever for me to suit my hand position, so it's easier to grab now without twisting the throttle.
@@frontdeskstaff9359 I set my levers to 3 (out of 5). I wear a size Medium glove when I want a nice tight fit, I also wear size Large when a tight fit is not important. I thought the levers were a comfortable distance out. I will try to bring them closer and see if that helps. Thanks
@@pjeng1 Yes it worked for me, may be the case where it didnt work could be a faulty unit or may be the connections made was loose? I recently installed a third party exhaust so I am yet to go for a longer ride to see how the booster plug handles the change in exhaust and if it can eliminate the pop ups
@@pjeng1 oh no, sorry to hear that.. You tried reaching out to booster plug and do they offer any recommendation? Would they be willing to send a replacement unit?
I just bought a 2020 S ABS and noticed the jerky throttle right away but it doesn’t take long to get used to, just makes you a more conscious rider and after a while it feels pretty smooth.
They must have fixed the issue on the 2020 model as I don’t feel the need to modify it. I have even looked at upgrading the exhaust but honestly cannot find anything that improves on the stock sound which is quite loud but has just the right note throughout the rev range.
Looks like a great improvement and I will get one for mine. I noticed on the website it has different boosters for different year models. I noticed your bike has a gear indicator whereas mine hasn't....mine is a 2017 supposedly but hasn't got it. Should I check with my local dealer before ordering to determine the year of my bike just in case.
Yes, ideally 2017 models are equipped with gear indicators. May be check the VIN number and it can accurately tell the Year of the body (certain parts of VIN). 2015 and 2016 models had a different set of booster plug than the 2017 and newer.
Just got mine and am learning on it, has been difficult as the stated jerkyness. I was gripping the outer part of the grip with my pinky to control the spin but this seems like a better solution lol
Hmm , give some time for you to get used to the bike and then you will alright. The boosted plug will smoothen out some of the issues with the throttle jump and engine braking
I'm definitely going to get a Delkvic ceramic coated exhaust full system for my 2020 Vulcan S. Just waiting on it to get restocked. Never had heard of this boosterplug, but I'll definitely get one as well. The Vulcan S is my first bike and it is easy to notice the jerkiness as soon as you let go of the throttle. It slows the bike down so fast that you either have to be accelerating or braking it. Wanna be able to cruise and hope this Boosterplug will do the job.
Most bike users found booster plug worked for their Vulcan S, but there is a small number of bike users found that it didn't work to reduce jerky throttle response.
I've been seeing your videos which I useful. Do you still use the booterplug? I saw your video with the CS racing exhaust install. How is your bike today? Did you ever get any check engine lights etc? I have a 2023 and I plan to do the exact same set-up. Thanks
Hey thanks for the great video. I know it’s very old but I just purchased a Vulcan S myself a couple weeks ago. It’s a 2015. After watching your video I was sitting on my bike waiting on my brother to come over so we could ride. I looked down in that area where the sensor is just to look at things and I noticed that sensor was sitting there exactly how you had placed yours. But my bike still has the throttle issue. Do you think the booster is out/broken? I would hate to have to take the whole thing apart but it could be loose or something right?
I dunno, feels a bit like snake oil to me. I installed mine today, this video was a great help also. Took me about 20 minutes total. Then went on a 30-minute ride and I have to say didn't notice any difference. I'll try again tomorrow with some slower speeds in traffic but so far I am skeptical. I have a 2019 Vulcan S all stock. I get the jerky low speed throttle, hard deceleration, and bogging down under 3000 rpm.
TheSgbarter Since it only took you 20 minutes I wonder if you even installed a booster plug LOL. There's a lot more to it than just 20 minutes of work.
@@jayryan7473 Maybe you're thinking of something different. It said Booster plug on the box, and the install was exactly like in this video. One of these days I should remove it just to see if I notice any difference now.
I have that in my list to track, Since I am not riding daily I am yet to fill up the tank and start. Once I track the mpg I will come back and post a video here.
popping sound was minimal after I installed the booster plug. I sold the Vulcan S and now I own a Triumph T100 Bonneville air cooled 865cc retro modern classic cruiser
Booster plug claim to smooth out the jerkiness in the throttle and give you a smoother ride which it does based on my test ride. Also if the bike has aftermarket exhaust installed, it will tune and burn the right mixture of air and gas So it will eliminate any pop sound with the exhaust
The booster plug definitely affect the slow speed in a good way. It smoothens out the ride, so when I ride in slow speed and it wont be a jerky ride experience which is the case without the booster plug. Check out this video from 13:10 onwards to see what I meant ua-cam.com/video/hE_0Z-gtMtY/v-deo.html
Booster plug is for tuning your motorcycle fuel injection, similar to the power commander. So it actually smoothens out the engine braking and jerkiness when you take the hand off the throttle. So instead of sudden stop it eases out the engine braking making the ride very pleasant. Check out this website for more info - www.boosterplug.com/shop/frontpage.html
I just noticed you had a sissy bar and rack combination on your bike. What brand did you choose? I recently ordered a Hepco and Becker sissy bar with rack. It was the only one I found that had bars on the side for the passenger to hold onto. Expensive, but I hope it is well made.
@@TLYRIDER I've seen on the internet that they have restricted horsepower, but I believe that was only on overseas models? I saw a UA-cam video where the guy opened the battery cover where the Allen wrench for the seat is stored and there was a plug on the end of a cable that had a small loop of wire sticking out of the top of it. He said by removing that you could increase the horsepower. Unfortunately I have to wait a couple more months before I can purchase my Vulcan S. So I can't verify it and thought I would run it by you. It's painful not to have my Vulcan s yet, I have ridden them a few times and really want one . My local dealers did not have one in stock. So it looks like I will have to wait till spring. Anyway just thought I would ask you because I do really enjoy your videos. You seem very knowledgeable and trustworthy. Google it and let me know if you come across anything. I will find that video and try to send you the link. Thanks, Jack jackmcl@email.com
Hi Jack, I looked at the throttle control knob and I dont see any bolt that restrict us from opening the throttle to full potential. It seems to be a thing with the overseas model, US model I dont see any restriction
Booster plug definitely makes a good improvement on how the throttle response is in a good way and I love it. It eliminates the jerk when I let go off the throttle so good in low speed driving and sundden down shifts
I just took my booster plug off, it made the bike run a little richer down in low revs, but made it run leaner in higher revs... with the booster plug in the bike was running at 58 horse power, without it the bike ran at 61 horse power. Bye Bye booster plug.
There was another video on youtube where they dynod the vulcan with and without the plug, and it made the same figures as u mentioned. Essentially better without the plug
2 whole horsepower? DAAAANG that's marvelous! Nothing like running an engine lean and increasing combustion temps for premature wear just for a 3% horsepower gain 😂
Just had mine installed and it completely feels like a different bike. Better in every way. No brainer.
glad you liked it , I got so many comments and questions after my install video
is it better/ less twtichy at low speeds?
@@roguevisual2245 yes 100%. That's what it does.
I dramatically reduced a jerky throttle on my Vulcan s by changing the front sprocket from 15 to 16 tooth. This reduced the jerky throttle reduced the engine revs by about 500 rpm for a given road speed and improved the riding experience the bike now rides as it should have from the factory.
this comment has me curious, has anyone else tried this too? would be nice to have a little more gear for first and smoother highway speed
Where did you buy it? And what year your vulcan is?
I bought it from their website or Amazon I dont remember - My vulcan S is 2016 model. www.boosterplug.com/shop/frontpage.html
@@MrTay675 hey mate.. 1 year later, did you ever find out if this is legit?
@@nickd6468 yes i did buy an oem 16 tooth - was completely worth it for my type of riding and weight. i would never put that 15 tooth back on.
This is great. I have been a bit frustrated by the strong engine braking while downshifting. If you don't time the rev-matching perfectly it jerks the bike. I think I'll get one of these devices.
You should try it out and I am sure you will never want to go back
I just ordered mine. I found a 2017 hold over that was just never sold and snatched it up for a steal. I’ve been riding it for a year now and just tossed on the delkevic bullnose 16in and finally got the booster plug in the mail. Friday that’s what I’m doing.
wow that's cool. I love when the dealers run sale on those left over inventory, right time to jump in. I am wondering when would Kawasaki update the vulcan S line up to have some minor updates (my wishlist, round headlight, mid footpeg, bobber fender ). Booster plug install is easy, removing tank and running the wire through could take 15-20 minutes or more.. have fun!
How did your installation go Jason?
TLY RIDER it went very well. Like you said it was very easy. It took total of twenty minutes from starting with the seat to putting it back on. Ran very smoothly I was very happy how I was able to maintain a steady throttle in 3rd gear at 25 mph with out feeling the typical off/on jerkiness. Thanks for the video by the way. Your placement of the sensor really helped me place mine.
@@JE-MG awesome, enjoy the ride
I am thrilled! First test ride proved the time spent on install is worth it! Are you planning to get one for your bike?
Have you noticed any effect on fuel efficiency?
@@_Meriwether I haven't checked / monitored the fuel efficiency prior to the install, but I will monitor the fuel consumption now and report out what am I getting so atleast we can compare to the average advertised fuel consumption.
@@TLYRIDER Sounds good, looking forward to your findings. d=(^_^)z
@@_Meriwether For sure, thanks for Subscribing, appreciate it.
@@TLYRIDER My pleasure, you earned the subscription.
Great video. Thank for sharing such a good info. GBU
Thanks so much for watching! Looking forward to see you & comments/interaction in the upcoming videos.
Plug n play- awesome! Great vid.
Yup 👍
I’m sold on it!
Thanks for watching
I bought my 2020 Vulcan S last week and I am still waiting for the reduced reach handlebars before I take delivery. I knew I wanted the booster plg when I decided to buy the Vulcan S. I have the booster plg at home waiting to be installed. Thank you for the video!
Awesome, you are gonna enjoy for sure
@@TLYRIDER
Update : I have my new Vulcan S. I have not installed the booster plug yet. I really need to. The throttle is very twitchy. I have been practicing riding up and down my private dirt road, starting and stopping in order to get used to the clutch and throttle. Darn thing almost took off out from under me the first time. I find it impossible to pull the front brake without twisting the throttle!
@@mrq1701 I'm a brand new rider on a Vulcan S too. G2 has a throttle tamer, throttle tub for the Vulcan S which is suppose to smooth out the throttle. I'm hoping that between the tamer and the plug, it will make it overall easier to learn on and control. As for the front brake, a friend adjusted the position of the brake lever for me to suit my hand position, so it's easier to grab now without twisting the throttle.
@@frontdeskstaff9359 I set my levers to 3 (out of 5). I wear a size Medium glove when I want a nice tight fit, I also wear size Large when a tight fit is not important. I thought the levers were a comfortable distance out. I will try to bring them closer and see if that helps. Thanks
I just ordered a booster plug for my 2015 Vulcan S and I’m excited to install it and try it out.
You would see the difference right away
There is only one case on the internet I found that the booster plug didn't work. Not sure why but it seems that it works for most users.
@@pjeng1 Yes it worked for me, may be the case where it didnt work could be a faulty unit or may be the connections made was loose? I recently installed a third party exhaust so I am yet to go for a longer ride to see how the booster plug handles the change in exhaust and if it can eliminate the pop ups
@@TLYRIDER My booster plug didn't work for my Vulcan S. I will double check the connections again. Thanks for your information.
@@pjeng1 oh no, sorry to hear that.. You tried reaching out to booster plug and do they offer any recommendation? Would they be willing to send a replacement unit?
Good video. I can understand you! Thanks!
Awesome review. Keep up the good work bud.
Thanks!
I love my kawasaki vulcan s 650
Me too
Great video. Just ordered mine last night I always felt the twitchy on off throttle was making the riding experience not as good as it could be.
Awesome. I am sure you will enjoy the ride post installation.
I just bought a 2020 S ABS and noticed the jerky throttle right away but it doesn’t take long to get used to, just makes you a more conscious rider and after a while it feels pretty smooth.
@@Tyke21 yes it is awesome right out of the factory and after the booster plug install it takes it to another level
They must have fixed the issue on the 2020 model as I don’t feel the need to modify it. I have even looked at upgrading the exhaust but honestly cannot find anything that improves on the stock sound which is quite loud but has just the right note throughout the rev range.
Great job!!!!👍
Thanks so much!
great content TLY, do you also have a video on how to remove the tank completely?
Looks like a great improvement and I will get one for mine. I noticed on the website it has different boosters for different year models. I noticed your bike has a gear indicator whereas mine hasn't....mine is a 2017 supposedly but hasn't got it. Should I check with my local dealer before ordering to determine the year of my bike just in case.
Yes, ideally 2017 models are equipped with gear indicators. May be check the VIN number and it can accurately tell the Year of the body (certain parts of VIN). 2015 and 2016 models had a different set of booster plug than the 2017 and newer.
Just got mine and am learning on it, has been difficult as the stated jerkyness. I was gripping the outer part of the grip with my pinky to control the spin but this seems like a better solution lol
Hmm , give some time for you to get used to the bike and then you will alright. The boosted plug will smoothen out some of the issues with the throttle jump and engine braking
Grab the delkevic. The new exhaust really changed how the bike performed and I’m hoping the booster will complete it all.
I'm definitely going to get a Delkvic ceramic coated exhaust full system for my 2020 Vulcan S. Just waiting on it to get restocked. Never had heard of this boosterplug, but I'll definitely get one as well. The Vulcan S is my first bike and it is easy to notice the jerkiness as soon as you let go of the throttle. It slows the bike down so fast that you either have to be accelerating or braking it. Wanna be able to cruise and hope this Boosterplug will do the job.
@@matheuscaldas3697 It will definitely do the job of easing out the engine breaking.
Most bike users found booster plug worked for their Vulcan S, but there is a small number of bike users found that it didn't work to reduce jerky throttle response.
I've been seeing your videos which I useful. Do you still use the booterplug? I saw your video with the CS racing exhaust install. How is your bike today? Did you ever get any check engine lights etc? I have a 2023 and I plan to do the exact same set-up. Thanks
Hey thanks for the great video. I know it’s very old but I just purchased a Vulcan S myself a couple weeks ago. It’s a 2015. After watching your video I was sitting on my bike waiting on my brother to come over so we could ride. I looked down in that area where the sensor is just to look at things and I noticed that sensor was sitting there exactly how you had placed yours. But my bike still has the throttle issue. Do you think the booster is out/broken? I would hate to have to take the whole thing apart but it could be loose or something right?
I dunno, feels a bit like snake oil to me. I installed mine today, this video was a great help also. Took me about 20 minutes total. Then went on a 30-minute ride and I have to say didn't notice any difference. I'll try again tomorrow with some slower speeds in traffic but so far I am skeptical. I have a 2019 Vulcan S all stock. I get the jerky low speed throttle, hard deceleration, and bogging down under 3000 rpm.
Hmm.. that's strange. For me the difference was noticeable on the very first ride.
TheSgbarter Since it only took you 20 minutes I wonder if you even installed a booster plug LOL. There's a lot more to it than just 20 minutes of work.
@@jayryan7473 Maybe you're thinking of something different. It said Booster plug on the box, and the install was exactly like in this video. One of these days I should remove it just to see if I notice any difference now.
@@jayryan7473 mine only took 20 mins, literally nothing to it lol
Great vid, thanks for that. Since the install, have you noticed a change in fuel consumption? Cheers!
I have that in my list to track, Since I am not riding daily I am yet to fill up the tank and start. Once I track the mpg I will come back and post a video here.
@@TLYRIDER Cheers mate!
Mark Palmer Yeah it totally improves gas mileage by turning the 650 cc's into 325 cc's. I highly recommend this mod.
@@jayryan7473 what does that mean for the power and torque?
Booster plug discontinued for all models past 2020. I wonder if a 2020 booster plug would be compatible with a 2022?
hmm, I didnt know that. Let me know if you find out.
@@TLYRIDER I asked a bunch of people and people still can do it. I don't know if its ideal but its possible.
Do you still get popping from the CS exhaust? I think it sounds cool anyway.
popping sound was minimal after I installed the booster plug. I sold the Vulcan S and now I own a Triumph T100 Bonneville air cooled 865cc retro modern classic cruiser
Where did you buy the booster plug from and how much did it cost? Cheers Paul fro Western Australia
Did the booster plug improve the bike's acceleration?
I would say that I felt acceleration improvement but definitely it improved the acceleration and deceleration experience, way way smoother
What is Booster Plug? Does it give more power?
Booster plug claim to smooth out the jerkiness in the throttle and give you a smoother ride which it does based on my test ride. Also if the bike has aftermarket exhaust installed, it will tune and burn the right mixture of air and gas So it will eliminate any pop sound with the exhaust
@@TLYRIDER Thanks for the explanation, I'm a new biker 😊🏍😎 Lots to learn 😀💪
Sure no problem. I am learning too and i share as I learn
oh my my my
Will the booster plug affect on speed or acceleration any how?
The booster plug definitely affect the slow speed in a good way. It smoothens out the ride, so when I ride in slow speed and it wont be a jerky ride experience which is the case without the booster plug. Check out this video from 13:10 onwards to see what I meant ua-cam.com/video/hE_0Z-gtMtY/v-deo.html
@@TLYRIDER Thank you
@@arisdhaftvani7210 No problem, anytime.
I’ve been want to buy a all black Vulcan S like yours, all the 2021 Vulcan S has a color scheme. Where did you buy your all black Vulcan S?
I bought it used
Anyone has 2023 Vulcan S. Is it same symptoms likes others? Do I also need to have one? Thx for your vid.
did anything change for the 2023 model, I think none
What does the Booster Plug do? what is it for?
Booster plug is for tuning your motorcycle fuel injection, similar to the power commander. So it actually smoothens out the engine braking and jerkiness when you take the hand off the throttle. So instead of sudden stop it eases out the engine braking making the ride very pleasant. Check out this website for more info - www.boosterplug.com/shop/frontpage.html
@@TLYRIDER Thanks bro
@@rickyl.colney7489 you are welcome
my man is in 5th gear going 35 hella lugging bruhh
That’s what I love about this bike.. you can go 20mph in 5th gear or 120MPH
@@TLYRIDER please dont go 120 in 5th lol
Lol 😂
I just noticed you had a sissy bar and rack combination on your bike. What brand did you choose? I recently ordered a Hepco and Becker sissy bar with rack. It was the only one I found that had bars on the side for the passenger to hold onto. Expensive, but I hope it is well made.
I bought it via Amazon , it was a cheaper version compared to Kawasaki's OEM price. Here is the link amzn.to/3fX7PBy
Have you heard anything about the US models of the Vulcan s having horsepower or engine restrictions?
No I haven’t, what’s going on?
@@TLYRIDER I've seen on the internet that they have restricted horsepower, but I believe that was only on overseas models?
I saw a UA-cam video where the guy opened the battery cover where the Allen wrench for the seat is stored and there was a plug on the end of a cable that had a small loop of wire sticking out of the top of it. He said by removing that you could increase the horsepower. Unfortunately I have to wait a couple more months before I can purchase my Vulcan S. So I can't verify it and thought I would run it by you.
It's painful not to have my Vulcan s yet, I have ridden them a few times and really want one . My local dealers did not have one in stock. So it looks like I will have to wait till spring. Anyway just thought I would ask you because I do really enjoy your videos. You seem very knowledgeable and trustworthy.
Google it and let me know if you come across anything. I will find that video and try to send you the link.
Thanks, Jack jackmcl@email.com
Hi Jack, I looked at the throttle control knob and I dont see any bolt that restrict us from opening the throttle to full potential. It seems to be a thing with the overseas model, US model I dont see any restriction
Puedes darme la dirección de donde la compro y cuanto mejoro la moto
www.boosterplug.com/shop/frontpage.html
How does this affect fuel economy does it reduce the distance you get from a full tank?
I didnt notice any fuel efficiency improvements
@@TLYRIDER did you gain any horse power
@@kraxl_1034 I'm sure the added horsepower is ripping paint off the tank with every throttle blip.
Hi again, I have installed Booster Plug but it has not helped anything unfortunately. The jerkiness of the throttle control is not gone...
oh.. is the air intake sensor placed correctly to get the air flow? would that be the issue?
Yes, it is placed correctly...
I spent twice as much for a dynojet power commander.
How do you like the results with it?
Booster plug definitely makes a good improvement on how the throttle response is in a good way and I love it. It eliminates the jerk when I let go off the throttle so good in low speed driving and sundden down shifts
It did not work for my 2019 Vulcan S and not sure why.
I think they fix something after 2018 because my vulcan S does not have that issue
I heard you get less mileage, is that true?
I didn’t felt that way, but I didn’t measured it accurately to say one way or another
How about the 2021 Vulcan s, can i used the 2020 booster plug, or do i need a 2021
ask the boosterplug support
I just took my booster plug off, it made the bike run a little richer down in low revs, but made it run leaner in higher revs... with the booster plug in the bike was running at 58 horse power, without it the bike ran at 61 horse power. Bye Bye booster plug.
There was another video on youtube where they dynod the vulcan with and without the plug, and it made the same figures as u mentioned.
Essentially better without the plug
2 whole horsepower? DAAAANG that's marvelous! Nothing like running an engine lean and increasing combustion temps for premature wear just for a 3% horsepower gain 😂
Hitler also didn’t like freedom of speech
?