Yamaha FZ1 stutter at low RPM Misfire, Hesitation under 4k RPM
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- Опубліковано 8 вер 2024
- 2008 Yamaha FZ1 having issues where the bike will stutter and feel like a small misfire when under 4000 RPM, this was resolved by testing and changing ignition coils.
Hope this helps.
Thank you. Also make sure battery terminals are tight. Mine seemed tight but were not and when I got the odd dead cut and check engine light came on. Been fine ever since I tightened them. Great bike, I have had my 2009 for about a year and am very happy with my great value for money and comfortable FZ1
I literally have the exact problem, had a hunch this was the issue, but I wanted to do a little research and be positive. Really appreciate the video!
Was it the issue?
@@kylerkorn4223 it sure was!
Having exactly the same issue with my r1, lumpy idle, stutters at low rpm, as soon as its over 4000 its fine, I had thought a bad plug or coil would of been worse at high revs so I'm glad to see this video and im hoping the same reasonably cheap easy fix will sort mine out too, so thanks for posting it
I’m having the same problem with my R1! It’s quite unexpectedly jerky even with a static throttle at times! Kind of like the engine breaking is trying to do something but it’s not sure what?!
Hi Jay. Have you checked your ignition coils? Your issue sound exactly like mine. Maybe as a first step, visually inspect your ignition coils and check If you can see anything out of place or smell burnt. My coil actually smelt like burn.
@@Quickshift820 hi mate,no I haven’t checked anything as it’s only just come out of the garage after a lengthy time getting a valve spring replaced so thought they may have spotted something while they’ve taken the engine apart.it kind of went better when I tightened my throttle cable but it’s still there especially when I have it in C mode I’ve noticed!🤔
Mmmm might be completely different to my problem. Maybe try giving your ignition going a nice press and make sure they are all seated properly? Otherwise take it back and tell them your issue
Same problem with my Benelli 300 under 4k rpm. Now I know what I need to check 🙌👌👍 thanks 😃
Glad I could help.
We have the same bike did you fix the issue?
@@carloesporlas9095 yeah I check the coils and one of them have cracks, I just replace both of them and solve de problem
Thank you for this video 🙏
Thanks for this video 👍 My ZX14 has just started doing this as you described so I'll have a look.
Hopefully it's the same issue and you get her fixed quick and easy.
My zx14 just did this today did that fox ur problem as well
@@dalvinthomas9637 Coils tested fine, so I put new plugs in it and all is well.
I have a zx14 r I put new plugs in it and I still have the same problem. It back fires when I decelerate. If I get on it hard starting out it runs fine as long as my rpm’s are high. I’ll do the exhaust test to see if one pipe is still cold after starting it for a few seconds. I hope it’s the coil. I’ve got 30k on it now.
@@DMidnight1971 Have you checked the valve lash?
my 08 gixxer 1000 has same exact issue.. replaced the plugs but still same issue happened. i guess i forgot to check the coil. i'll try with the coil later..hopefully fixed mine too. going over 5k rpm is fine.. its just on low rpm. sometimes it feels like it runs with less cylinders..
Hope that sorts out your problem
My buddy has a similar issue on his Kawi ER6-n, so we will look into this
Hi, i just got my 2007 FZ1 and it has the same problem as some of yours. When I start it the idel is not constant it jumps from 900-1100rpm and when I start driving with an rpm below 4000 it seems to have trouble taking turns and the acceleration is bumpy as if there were a fuel or ignition problem, but when I pass the 5000rpm it drives very well without any problem (the battery is in good condition I always check it). If anyone has fixed this problem, can you let me know what worked as a solution for you?
I can suggest checking your coils and spark plugs. Replacing that one coil solved my problem.
love how you almost died passing that second car really close, I SAW THAT
You saw that hey... Got the heart pumping for sure.
Little bit of wheel spin on a wet or oily patch! It happens to me too sometimes. You want to be upright and not leaning at all like he was, good skills though and lucky not to highside. Got to respect this bike or it will bite you, right when you think you have it all sussed out.
Oh yeah she is a crazy monster if you don't give her the respect she deserves. That caused the spin was the road markings has a little bit of water on. Always be careful of those painted road markings they are sketchy.
Have similar issue with 09 …seems fine idling in N , but rolling at around 3k +/- rpm it slightly rumbles to differing amounts .which with any throttle at all disappears , but under hard acceleration …when I up shift and not go hard on throttle in next gear I’ll get an occasional “pop” …which the pop is what worries me ,I until that assumed the rumble was just a small fueling issue… but I don’t know …thanks for this quick vid , I have new plugs and RM Stator coils am about to install (wheniget the time and rain stops for a day lol)
Did this resolve the issue
@@dean_ferguson2825 nope , either i screwed up or the coils (which didnt match resistance perfectly ) are causing me to blow the ignition fuse within minutes … took me a hot minute to even realize this is what happened and ive yet to get into it … others in different forums etc have mentioned rms coils can be a big issue … i didnt totally believe them (obviously), but now am afraid to start it with those coils in …a couple people mentioned some how the coils caused ecu computer failure 🤷🏼♂️✌️
So I have a 06 r1 i just changed my spark plugs due to sputtering/misfire at low rpm (3k to 5k) and now my engine is popping and misfiring even worse lol im the best mechanic
The classic "try and fix a problem but make it worse" happens you me all the time.... Have you tried inspecting and checking the voltage of your ignition coils and making sure they are all seated properly?
@@Quickshift820 well I just tore into it again looked like one of my coils was a bit backed out so I made sure they were seated flush this time I didn't bother checking the voltage had it up on the rear stand and got it up to 6k rpms and it didn't sputter or backfire so fingers crossed I fixed it I'm gonna chill and contemplate on why I bought another yamaha for a bit then go test ride it 😂
Hopefully she is fixed 🤞, let us know.
@@Quickshift820 Hey just giving an update, I bought some used coils on ebay swapped them out and it didn't fix the problem, so my guess is I messed up when cleaning and oiling the K&N or maybe the fuel line is kinked or maybe they sold me bad coils, I'm gonna mess with the fuel line and take apart my airbox again and see if I can shake loose some extra oil. Man, why did I buy another yamaha after owning an r6 I should've gotten a honda >.>
My Benelli tnt 25 can't rev past 9k rpms. Engine stops on its own after a short errand. She doesn't feel quite fine. I am thinking to order a shooting coil and see if the problem will go away. Thanks for the insight.
Zx10r 2005 in low rpm its good if i reached nearly 20 rpm the missfire if i Push the throttle hard after that its good . don't know the issue so i also ordered the coils hop this was the issue
How did you fix the problem? Did you install a new coil?
I got a fz8 and I'm having this same issue. I was gonna buy sparkplugs to replace it. But I'ma try check the coils first.
Yeah just replaced that one bad coil and problem solved
@@Quickshift820 I dried the coils, engine runs fine now
Hi i'm having something weird happening to my 2008 fz1. Mine is stuttering like yours under 4000rpm and the idle is rough.
As long as its cold its fine but when my oil temp starts rising to about 60c the idle starts dipping to 800rpm and jumps straight up back too 1100rpm and it dips about once every 10 seconds. If you leave it running it gets worse and within 5mins it stays at 800rmp and jumps very briefly to 1100 rpm and straight back down. I checked the coil and they looked fine and where in spec and after about 10 days the issue was gone.
Now after about a month the problem is back. I started the bike and let her warm up and she started having a rough idle again so i let it cool down, removed the coils checked them and they looked ok as where in spec. I put them back and the problem is gone again for now.
Any ideas
Hey man, does the bike sound like it's misfiring when the idle drops to 800? If it does it could be a spark plug or injector issue. I'm no mechanic but it could be a good place to start looking. Let me know if you get the problem sorted, hope you do.
检查汽油泵或油管
I had the problem you described, once the bike warmed up it was like a cylinder was dropping out, checked everything, ended up changing the coils, TPS, every vacuum line, checked throttle bodies for intake leaks etc, ended up opening every electrical plug on the bike, the ECU and ECU plug had 4 or 5 pins that were very slightly corroded, once I cleaned them up the bike has been running perfectly since
My problem is different from yours. In my bike below 4000 rpm everything is great. if i try to pass 4k rpm bike struggle to gain speed and engine sound also changing. Please help with my problem
I have a 1985 Yamaha Vmax with 11,000 original miles and after I ride it for a few miles and it is warmed up the idle gets a little funky and there is slight hesitation when starting out but as soon as the bike gets rolling she is just as scary as ever!!!
Could just need a good carb cleaning, maybe try that and if it doesn't fix it then dig into the ignition system
Thanks great video. What were some of the possible other causes of the problem you read about?
Thanks.
It could be anything spark of fuel related, A common easy one is a kink in the fuel line under the tank. Others were spark plugs, stator, ECU and battery even.
@@Quickshift820 thanks alot ill look into those
Rpm meter up & Down then stop engine but why?
Sir my fz v1 has missing at lower rpm. When i give slow throttling while trying to move the bike the engine will be goes off. But no problems at higher rpm. I changed spark plug airfilter and cleaned carburetor but the problem is still ther
Have you tested the resistance on your ignition coils? My issue was one of the ignition coils was damaged and not providing enough power to the spark plug and therefore misfiring. Try check the resistance of your ignition coils. There are lots of videos on how to do this.
@@Quickshift820 but it's not happens every times. When i start my bike 5times a day the missing happens 3 or 2times. That's why i have trust issue. So please help me
It could definitely be the ignition coils. Do you have a local bike shop you can take the bike to?
Same issue with my husqvarna nuda 900r
Should you check the fuel tank and pump
Hi, I want to make sure that I understand your specific issue that you resolve. It was stuttering after you pull of the throttle and go with the throttle again? In my case I have a problem when I go slow at low rpm and after I go on the throttle to accelarate I fell some kind of jerk or strike in the drive area of my bike, cant establish what is the reason. Is it possible that coil pipe cause this?
Hey, so for me it was happening when cruising at like 5% throttle and low RPM. The bike would feel jerky and not smooth. Pulling off and wide open throttle were fine.
I have ninja zx6r when it is low rpm it is misfire let me check plug holder
Is there a video in how to replace these
Unfortunately I didn't record that. Busy it's not to difficult. On the FZ1 you need to lossen the radiator (no need to drain it) then you can access the ignition coils. You will unplug them and then just pull them up and out of the motor.
@@Quickshift820 ok thank you
Same thing man will check it at the weekend
Same problem with my chinabike Cfmoto Nk400
Can the spark plugs be the cause for this too?
They sure could.
My fizzy also started doing this after installing pc3 and quickshifter. removed both but still the same problem. i gues coincidence or the qs broke my coils? didnt had the time to change them out yet. with cold engine no problems after warmup its starting to misfire at low (below 4k rpm)
Sounds like coils or spark plugs. I would pop out the coils and have a look/test before buying new ones
@@Quickshift820 i also guess coils, sparks are 5000km old replqced last winter. But i had a rich mqp in my pc3 before this problem started maybe plugs fouled? But they look fresh still
It's possible the plugs fouled but unlikely, I would check coils first.
@@Quickshift820 Will do, thanks!
Helo sir i am having a small issue with my 2017 hayabusa
While cruising on 2000-3000 rpm there is a pop up sound coming ….if m on above 4000 rpm there is no problem running smooth…bt on 2000-4000 rpm ithere is pop up sound coming up please help me with this I recently changed the spark plug also bt it is still there .
Have you checked the residents on your ignition coils? Also check them for any physical damage.
@@Quickshift820 i gues i saw it looked fine jus changed the spark plug …at the time it looked fine i m gonna check again …
It can b also if u dnt top up the air filter properly…i saw another video on yt ..wich says if the air filter is not properly top up then this happens
So I just bought a 2009 FZ1 and it is having this exact same problem. Below 4,500 RPMs it spits and sputters and runs a little rough but then after 4500 RPMs I'll start to roll the throttle on really slowly and all of a suddenly fan it kicks in and it starts to run like a two-stroke and pulls hard. Since I just bought this bike and it has a power commander 5 on it and I noticed it has this Ivan's fuel cut off remover that also has race only on it I thought maybe those two things were butting heads or possibly it was a tuning issue. If anyone has any other suggestions please please let me know I was planning on taking it tomorrow to the bike shop but I'm on my way home now in the first thing I'm going to do is pull down the radiator and start pulling all those coil packs out of there. I thought that the bike or at least I thought I noticed that it had a check engine light and that because it's fuel injected and has an O2 sensor etc etc that if a coil pack was bad or not running properly it would throw a check engine light which I have not seen. Anyways thank you very much for the video I'll be checking these when I get home I'm sure it's probably fouled a spark plug or two out which is probably not helped but if anybody else has any ideas of else what it might be to check please please let me know I would super appreciate it
Hey. Testing the coil pack and spark plugs would be my first bet. But it is definitely possible it's a tuning issue. Could be someone just loaded a bad tune and the bikes not happen with it under 4500 rpm.
My bike was stock so I didn't really need to worry about tuning. Hope you get her sorted and it's an easy fix. I could literally smell the coil that was broken.
@@Quickshift820 so I'm literally pulling the last coil pack right now and the two outside coil packs one of them was rusted around where it's been put together and it's showing spots of arcing and the other outside one is definitely showing arcing spots. And on top of all of that every single spark plug is rusted so the bike only has 19 k miles on it if I had to guess they've never been changed
@@Quickshift820 also I feel stupid for asking this because I worked on my 99 r1 through and through never had any issues but the airbox on this fc1 when I pull all the screw screws out of it it doesn't seem to want to come off.. just the top part of the air box you know.. like it's being held in place by something else is there something I'm missing cuz I don't want to just Yank on it
Well those coils and plugs are definitely your problem.
If I remember correctly there is a screw I missed aswell like hidden somewhere in the middle or some shit. Hahah I can't remember as I haven't had the bike for almost a year now but mine did come off pretty easy after I had found all the screws.
Did you get vibrations aswell please?
It was more of a jerking feeling. The bike felt rough and unsmooth at certain RPM.
So I have a 2000 ex500 d ninja and unlike yours, mine starts to sputter at 5k and won’t let me go any higher, I get a terrible loss of engine power… anyone know why?
Sounds like it could be a fueling issue. have you taken the carb apart and given it a good clean and once over?
Does it feel like it hits a rev limiter at 5k rpm?
@@Quickshift820 yes I’ve completely rebuilt it and cleaned MANY times.
What will happen is when I give it gas it’ll go fairly smooth until I reach 5k then it won’t really go much faster after that, as well as sputter continuously until I let off. It doesn’t feel like it’s limited, but if I try to give it even more gas after it starts sputtering it feels very weak, kind of like a cylinder isn’t working at all and sounds like it’s about to die. I wish I could explain it better.
Damn man. I wish I could be more help. It definitely sounds like a fuel or ignition issue. I can suggest looking at all the wiring (make sure there are no damaged cables coming from your stator or battery) check your ignition coils resistance, swop out apart plugs, do a compression test, make sure your timing chain hasn't jumped a tooth, check valve clearance. Hope one of these fixed your issue man. Good luck.
Hey dude, I know that this post is quite old but I've had a similar problem since I bought my bike, so it's worth asking.
My bike has a pretty alright idle, but I can't keep the throttle under 4k rpm or so or the cylinders keep misfiring and going nuts. I can still ride it fine, but it is still annoying not being able to ride smoothly at low rpm. Do this sounds similar to your issue?
Also it's worth mentioning that the previous owner changed the 2 carb setup for a single carb, which I spend a lot of hours working on and testing stuff out, so I guess that's not the problem (buying all the parts I need to change it back to dual carb would run me about 30% of the bikes value, so that's out of question)
This does sound similar to what I had. (I had the Gen 2 fuel injection) but if your ignition coils are the issue then you could be expecting the exact same problem as me. I would recommend testing the ignition coils. It's not a major task to get them out. Give them a visual inspection and if you have access to a multimeter check there resistance. (There are lots of videos about how to check ignition coils resistance)
Hope this helps.
@@Quickshift820 thanks for the response! As soon as I find time to work on her I will do the tests and get back to you with hopefully good news!
@@Quickshift820 It has been 9 months but recently I got around getting new coils.
I started by checking the spark plug wires and they were completely shot. Swapped them out and it became a whole new bike. The coils were a little out of spec on the multimeter but I didn't give much thought. Just recently I came across some OEM coils at a nice price and decided to grab them.
I really cannot put in words how much the bike improved because my bad english won't let me. But to put on perspective: Your lead made a bike that topped off at ~85 km/h (100 with the new wires) to topping at 140. It might not seem like a big deal but she is a tired, heavy, old 250cc. The acceleration is also absolutely off the charts.
I really can't thank you enough, my dude. You have no idea how much you helped me.
I hope all the best for you and your family! If you ever visit Brazil hit me up and we will have a ride, the beer is on me!
did u replace all the coils or jus one??
Just one
Did u fix it?
I'm having the same problem.. what is the solution?
I replaced the Ignition coils. she rides like a champ now.
@1:53 you can see my coil was damaged, you may not be able to see any visible damage but you can take a multimeter and check the resistance of each coil.