cbr sounds like a v twin..
i swore i thought i did a thread on this a couple months ago.. but i guess i didnt?? well last time my cbr sounded like a vtwin i just switched it over to reserve tank and it stopped.. but now it has started again..tried the same thing by switching over to reserve but this time it didnt help.
i JUST replaced my spark plugs yesterday with new NGKs.. no iridiums cuz im too poor.. rode to my friends house and stayed there for about 4 hours then on the ride home my bike started sounding like a v twin.. idle was pretty slow and sounded spaced out...(am i making sense?) haha. and the launch,or take off, was sluggish. so today i took off my carbs.. didnt really clean them but i just made sure nothing was clogging. put it back on and she still sounds like a v twin.. up until past 5-7k? i dont have gauges so im guessing 5-7k but im damn sure it sounds like a v twin from 1k-4k. after 7k she roars like a sexy CBR is supposed to!!!.. any help please? |
Mine sounded exactly the same, you need to clean your carbs and make sure you dont miss the D shaped one. Look at the sticky there is a how to.
Hope that helps and fixes your problem |
Also check to make sure your vent tube to the tank is clear, mine was doing that yesterday, and I found the vent tube was plugged - it couldn't draw enough fuel for the amount of air it was getting. Hence the V-twin sound.
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Originally Posted by 99LS1
(Post 830386)
Mine sounded exactly the same, you need to clean your carbs and make sure you dont miss the D shaped one. Look at the sticky there is a how to.
Hope that helps and fixes your problem
Originally Posted by GSX_RDR
(Post 830469)
Also check to make sure your vent tube to the tank is clear, mine was doing that yesterday, and I found the vent tube was plugged - it couldn't draw enough fuel for the amount of air it was getting. Hence the V-twin sound.
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https://cbrforum.com/forum/showthrea...hlight=sputter
this sounds alot like my problem.. but this didnt happen until AFTER i changed out my spark plugs.... i guess i gotta go lookin for some spark! |
Did you maybe not connect the leads properly after changing the plugs? ... one could have wiggled loose...?
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Originally Posted by Bently600
(Post 830822)
Did you maybe not connect the leads properly after changing the plugs? ... one could have wiggled loose...?
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Yes its the pilot jet.
NO idea who told you not to touch it but it made my bike idle AMAZING! Read this... https://cbrforum.com/forum/f2-tech-93/carburetor-cleaning-tuning-101-a-96888/ |
Originally Posted by 99LS1
(Post 830884)
Yes its the pilot jet.
NO idea who told you not to touch it but it made my bike idle AMAZING! Read this... https://cbrforum.com/forum/showthread.php?t=96888 on the other hand i checked for spark in the wires and arc in the plugs and they're all good n strong.. |
ok so i rode to school this morning and the bike was half way between ridable and shytty. ridable meaning i can ride it but i shoulda drove my car instead. so like i said i added seafoam in my bike yesterday and it ran a little better. but now it runs better than before i put the seafoam in..but shyttier than how it ran right after i put the seafoam in.. sorry if im confusing anyone. the bike sputters alot. when im holding it at a constant RPM it sounds muffled.. but right when i give it a little throttle then it sounds regular but with sputter(for example.. BBBRRRRR PRPRPRPR BRRRRR PR PR PR) haha. im in 3rd gear(not sure how fast im going cuz i dont have gauges) and i WOT the biznatch! wow.. i gotta say im holding the throotle WIDE WIDE open for a SOLID 10 mississippi seconds and i barely had to grip my handle bars.. it felt like i went from 30mph to 45mph.. so when i get home im gonna clean the butt outta my carbs(including pilot jets) n see if it gets any better.
NEW PROBLEM... while i was idling at a red light.. i hear a little shot of air.. hard to explain. but it sounds like when u get a eye check up and they blow that puff of air in ur eye to check presssure or whatever, it sounded exactly like that.. it did it a couple times at the light and when i looked at it, it also blew some white smoke out with it.. i've heard this noise before but never thought anything of it :icon_doh:. im close to just bringing this bike to a shop to get her fixed =[ |
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