Free HP Mods For Motorized Bikes
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- Опубліковано 28 лип 2024
- Hey guys welcome back! today I'm showing you what mods make the biggest impact when it comes to power. most of them are free or very inexpensive to do. I am not responsible for any damages that are done to your engine by my information. if you follow closely you will have no issues!
If you enjoyed this video make sure to comment like and subscribe as it would be very much appreciated.
You have a natural ability for teaching. You are the epitome of consistency and flow. I took notes and didn't have to watch the video 20 times to make sure I understood the instruction(s). I ordered 40 motor kits and I'm on my 33rd, 34th, and 35th motorizing the bikes. I have an assembly line of 3 bikes going at the same time. I build bikes and sell for collection purposes. My bikes are vintage like the choppers, spiders, and 50's era with the shock absorber spring in front of the handle bars. All completed bikes have sold. Love my hobby.
Thanks
Agree! Great training.
Awesome! Can I get a contact number or website from you? I'd like to see your bikes and maybe buy one. I've built a couple myself but nothing to brag about.
Yo, you're pretty smart. I took about two years of small engine, and just came back in from working on my GT Timberline that can do 35-40 by the end of the block with an almost 40 year old fat guy on it, and everything you said made sense, and I even learned a couple of ideas for my bike. Thanks for making this video.
.026-28 for the plug gap on just about everything with a magnet magneto ignition... .035 is what they come with it's standard for automotive because they have stronger coils and electric... A blue spark and the electrode needs to be centered and even with the ground strap... Those cheap round and wire gauges for plugs have legs for bending the ground strap... Nice video
Thanks for making an informative video it was very easy to understand
Awesome video bud!
Well explained Mr Keegan already suscribe,continúe Say hello Jorge.
well done on the tutorial, but just to add as some constructive criticism. If you place a piece of thick(ish) glass under your sandpaper when decking the cylinder, it gives you a true even surface.
If you choose to resurface your head seal faces, use a piece of glass or some but a wood bench is nowhere near flat enough to be surfacing anything of that nature on
And you should typically only sand to 600 grit anything finer and your gonna be wasting time and also potentially have a friction weld for the metals expanding and contracting under heat, it is rare but when it happens your cylinder and head are lost because they will be pretty much inseparable
@@timmytexlonghorns2206 I know dude I should have demonstrated on a better surface…
Glass isn't flat, MDF is
Tested with a straight edge
This dude is spot on with his facts!!! I run a Yd-100 with a G2-reed, OKO carb, and a Yz80 exhaust, and the Br8hs plug is my top pick. I would have also discussed oil types, premix ratios, and maybe even running E85. I do not agree with not using an exhaust gasket, but that is not something to argue about. Once again, a great video. Keep it up.
Thanks so much! Glad you like the videos some people tell me I’m wrong but I try my best to help others.the exhaust gasket I blow out all the time so that’s why I use strait ultra copper sealant. It also comes off easily oppose to a gasket that’s is stuck on the flange.
@@keeganhache6667 👍Keep it up.
Idk 🤷🏻♂️ I file the mating surfaces perfectly flat and smooth don’t need much to seal it good to carry a gasket in case ya have to take exhaust off for some reason but many times I flattened them applied ultra grey and took off before it even cured and didn’t have leak issues it lasted longer than the gasket did. And the rubber gasket w the metal sandwiched in we get stock sucks a thin brown paper gasket lasts longer especially if ya file the surfaces flat
I use a Toyota Highlander 02 sensor gasket , it’s metal, and they last years before you need a new one. They fit perfectly on 4 and 2 strokes!
I just made a gasket out of aluminum and it works fine
I found this tip helpful tape the paper flat on a piece of glass and make sure ya keep it level in the paper as ya turn sometimes ya lift the corner a bit and that can lead to it being shorter on one side corner so also turn the cylinder using the same motion same number of rotations s like do fig8 10x rotate do 10 rotate but rotate it 1/8 at a time hold flat side then corner then flat side if ya measure it ya will find that it can leave low spots (0.1mm) don’t matter really what figure shape ya use but that ya use even pressure and even motion
Yeah I know, I normally would have taped it all down to my glass table and did the same thing. It was more for the video to make it easier.
When decking, flatness of the sanding surface is important, I use a piece of plate glass below the sandpaper
Very knowledgeable thank you for the good info. Bought me a kit so I'm going to give it a go cheers
This is NOT knowledgeable do yourself a favor and forget everything you "learned" here
@@jmc5341 beat u to it the kit i bought didnt have all the bits it was supposed to come with, so i gave up on that endeavor for now
Next get an arbeo carb from grubee it’s basically a upgraded dellorto SHA (hp carb) but it’s got an air fuel screw the only one with that is the arbeo. Best carb under $50 period.
I have a e3 spark plug and i love it .small e3 spark plug😊
Hey hey… this dude is awesome
Thanks this means a lot man
I’d put that gx100 on a bike as well but a good built frame is a must!
Yeah the frame is a apc mini chopper frame that has very thick tubing
@@keeganhache6667 just got hit trying to. Make a left turn wear a real dot full face helmet use mirrors and wear a jacket or skid suit 4 spinal fractures surgery on thumb no fun at all man so be safe kid be safe
Clear image to your video. You do a good job of explaining and showing everything you are doing. Well done brother.👍👍🫡
Next time you have to sand a cylinder, put a thick piece of glass under the sandpaper. Your work will go faster & leave a finer finish.
Thanks I’ve done this with a belt sander too go check out my newer porting videos
@@keeganhache6667 I got spoiled with a moderately-well equipped machine shop access a few years ago. I never got the chance to do any porting, but I did some unauthorized work whenever I got the chance.
Just put any chainsaw plug in it and itta go twice as fast.i know that the chainsaw plug is alot shorter than stock plug.its all you need to go fast mine ran over 60mph.but be sure you get an engine mounted spring tensioner
That pipe looks like a mini expansion chamber. It could technically be tuned to the motor. On a chamber the stinger adjust the temperature I believe.
Yup the longer the stinger = more top rpm power with a sacrifice of some low end
How did a Briggs & Stratton head just like that in my power mechanics class in high school. The first time I did it worked awesome did the little 10 overbore me being me wasn't good enough I went back at the head and I did, mess up the sealing it was little flames flying out between the head and the block if I had any doubt lol. It was a very cheap lesson though
I miss my 70s Solex front wheel friction drive. I only deck the head and jug to make the surfaces mate properly. I don’t do any other mods. Mine runs great and I don’t need to go faster than 35 mph on a bicycle.
Haha! Those little solex bikes are really cool. I believe they were made in France and moto Migs has one. He never got his running tho because those carbs are hard to find parts for. Yeah the whole speed thing isn’t a big deal to me. I hit top speed once or twice on a bike just to prove what top speed it has and after that I like to just cruise and enjoy the road.
Dont put an aluminum head in a vise. Not sure if that was mentioned or not?
Before sanding a cylinder or head, put the sand paper on glass to ensure flatness.
Yup this a old video I use glass every time now go check out some of the new stuff
@keeganhache6667 cool, being a retired mechanic, I've used that trick many times. Keep up the good work.
great video . question the arrow on the piston shoild it point to the exhust or the carburator . in other video they say. there are two bump in side the piston .they should go in the back .of the motor is this true .thanks
Well never go off of the arrow. So thinks it can be stamped backwards. I would go off the piston pins on the intake side, this will insure that no rings will get snagged
I’m sure nobody will answer, but does anyone know why my top end stutters?? I’m thinking it’s because my stock exhaust dosnt have much back pressure, can anyone let me know???
Aluminum can for headgaskets
RC Cola works mint!👍
How about the nowaday 4 electrode spark plug you didn't test that but I'm a firm believer in NGK I used B8ES on my dirt bike back in the 90's on my 1978/79? Suzuki RM 80 6 speed and that plug worked the best for that motor
Yeah Ngk works best for me but I’ve heard a lot of good things about these E3 plugs I might give one a try and see what happens.
I just like that on ngk it’s so easy to dial in the heat range. A b5hs is gonna run a lot hotter than a b8hs.
i like how you said that a little dremel tool will last you a lifetime when youre clearly pretty young ;P
Lol
Honda has a line of small motors. Anyone ever put one in a bike frame? I might like to do that.
Yep, much slower top speeds but they're 4 stroke and have the torque to climb damn near everything, especially one I went to belt drive 💯
My bbr 80cc died last week to not get it started so I bought a new Magneto new CDI and a new carburetor put them on it wasn't starting I figured out the compression it was escaping so I made a head gasket and now it's back up to par it will start for about 15 20 seconds and bog right out again what could that be
Yup a bike will start a lot harder if it’s got a leak under the cylinder head. Just face both sides with sandpaper and make sure your gasket has no marks digs or scratches and you will be golden
I took my cap off 4x the sound and a hell of alot of torque it yanked my back wheel off
Funniest mod I’ve done was connect a can of ether (QuickStart) to the seat post via water bottle holder and run a direct injection line to the cylinder. This is basically Ike hillbilly Nos haha little spray goes a long way ! #sprayallday
Put a piece of glass down on a hard surface sand on it. It’s nuts on straight
Yup I did it with all my other cylinders. I couldn’t find my little glass table at the time of recording this video so I temporarily showed the technique on the bench. But I can understand why people would be concerned about that.
Noiceee
Hey thanks for video! I think in video the piston arrow is pointing backwards... it's suppose to be pointing towards the exhaust and not the intake. Did you notice that too?
Yup and your right on that one. I did the skirt mod a long time ago and I didn’t realize that the piston was backwards when I did it. Luckily noting bad happened and most say the piston ring end gap pins can cross talk with the exhaust port but mine never did. Now that I know I would recommend making sure the pins are facing the intake and dint go by the arrow.
What happens if you got a head that is painted ?
I have an all black 2023 PK80 engine, and the top end of the cylinder is all painted black. Will that interfere the performance?
Yeah I would sand it down to clean metal
@@keeganhache6667 By the way, after I tighten everything, the barbs are still kinda showing on top end
I've had mine topping 59 miles per hour as I don't recommend traveling that fast on one these bikes but it sure does remind me of the old days as I exercised Race Horse's from 1981 thru 1994 I usually climbed aboard around 20 to 25 horses every morning but it's close but I have to say I've been hurt on My bike all those years in saddle 😮all I can say is I've been around block or did that two turns thousands of time's I'm certainly a adrinlin junkie so😢 I can tell you duck roll played lawn dart water snow hitting dirt assfault not same more like water skiing all ways seemed close to me real thrill adrid close thrill slow sloping hill in my favor as I'm coming down Bohnam Street
Try autolite they can cross check it get ya em the same heat rati g and all (7) they are bad ass spark plugs as far as durability
Ok cool I will try that plug! Thanks for commenting
Should the arrow on the piston show to the outlet or inlet?
OUT exhaust it should be facing exhaust
Yeah had it backwards in the video my accident
how many tanks or miles should you break in a motor before even thinking about upgrades?
That’s a great question I would say the first three tanks of gas don’t modify anything and take it easy. Then you can modify the motor and or install better parts
Can anyone help I have a 2 stroke bicycle engine with the intake on the back of the crankcase?? I never saw that configuration before. Does anyone here have any info ?
That my friend is a case reed motor. Did you buy the motor used? They are a high performance setup and only can be taken advantage of with a real dirt bike pipe or a scooter pipe. It allows the fuel charge to go into the cylinder a lot quicker than a standard piston port intake.
@@keeganhache6667 I got the motor used but it never run. It came with a reed valve set up.
@@ccboss490 nice man you can really build up that motor and make it rip!
@@keeganhache6667 going to try. Thanks for the reply.
@@keeganhache6667 should I use a window piston set up?
Best mods to do first are to tune the carb by jetting it down since they all come to a main carb jet that is to large, then drill 2-3 extra holes innthe muffler cap to zget better exaust flow anf also do some die fri der work on exhaust pipe flange to get it more closely matched to exhaust port of cyl.
for a noob that knows nothibg anout engines these things along with some of whats suggested in this video will improve how the engine runs, but just know that if crani balance is horrible and the port timing is way off, the revs of the engine will be limited by these two factors, no matter how many other thing you do to it
Mant thungs will affect the overall performance of these engines. I have 14 years experience modifying wnd tinkering with these little engines so Ive seen a lot with them.
Do you know anything about hawk 250…
I’ve never owned one but I’m sure I could help you out if you have a problem with it
Yay! Good for you it works good don’t it?
What mod are you referring to?
@@keeganhache6667 trimming the internal stinger in the pipe
@@motorizedbicyclenation53cu90 yeah it works pretty nice. Keeps it quiet but still gives better airflow. I loved taking the cap out and letting her rip! But the neighbours weren’t happy lol.
My bike only goes 29 mph, do u know why
29 mph is about what to expect with a stock engine with a 44 tooth rear sprocket with 26 inch wheels.
What carb do you recommend
Good question but I need more information about your setup. If it’s a mostly stock motor a good upgrade is the Hp carburetor with a #65 jet. That will give you a higher top speed but they also tend to run smoother.
I have the nt with a 65 now and it runs good but not a lot of power,I'm thinking about putting a bofang on that I have here
It's pretty much stock,I just put that flex exhaust on the other day
@@keeganhache6667my bike just come with 70mm jets =)))
You got to be pacific bro.
Pacific!
Troll lol
@@keeganhache6667 btw I have a serious question. What 80cc motor do you recommend I buy? I'm wanting to upgrade from my worn out 50cc
@@bo-boboski4118 I would just say buy the cheapest one you can find if you live outside the US, if you live in the US then I'd say get a Zeda 80. I wanted to get the Zeda 80 but I live in Ireland so shipping was 150 euro. I found a cheap Chinese motor for 115. If you are in the US but still want the cheapest engine then you can find some for 80 - 100 dollars.
😜
Any spark plug with r on it is no bueno . The r is a resistor plug . It will work , just no benefits .
I'm not trying to give you a hard time . Just some info .
I noticed someone mentioned to plain your head on glass so that has been addressed. . A figure 8 sanding motion will yeild a better plain than a circular motion .
Lastly , when porting the intake you want to cross hatch it and leave it rough for better fuel atomization .
When you polish the intake , which you shouldn't do , it doesn't atomize the fuel as well as if were left rough .
Anyone should only polish the exhaust and not the intake .
Good video !!!
Last night i dreamt i was trapped inside a muffler. I kicked and beat and banged and no matter what i did i couldn't get out .
I woke up exhausted 😜
Ahhhh I love cheap horse power…. Get it lol cause my channel lol
Yessir cheap power for the win. However these are mods I do until I can afford the high end stuff such as a true expansion chamber pipe or a better carb. Porting is the best free mod but you really need to know what your doing.
Just go buy a Phantom 85. It has everything you need to hit 45 mph. Out of the box.
Those motors have a bad history of not being reliable. I’m gonna have to pass on this option
@@keeganhache6667 Rotate the cylinder 1mm clockwise. So the rings clear everything. Problem solved.
@@jgbelmont that’s kinda off sketchy imo but if your having good luck with it then ride on! The newer phantom has a narrow intake port so it’s prevents ring snag. If you can’t get a new gen cylinder I recommend a ms440 saw piston
I think champion spark plugs are great, ngk is IDEAL, but i think proce wise champions are more worth it
Open Tha Pipe Jet Tha Carb *