this problem usually only happens when its cold and quiclkly goes away...

this is what happens. sometimes during startup it will sound like its only running on 3 cylinders (sounds like a piston is just clacking around....like a knock) but in less than 30 seconds it smooths right out and runs great

it will run great for the entire ride, smooth exceleration and idles great, but if i shut it down and leave it for a while it happens again

is my diagnosis correct that its only running on 3 cyl. during innitial startup? if yes, why?

thanks for any help! i tried searching around but im not use to the site yet

 

the little rattling noise could be your CCT. my hydraulic one made that sorta noise in the first few seconds of startup.

 

excuse my lack of knowledge but what is a CCT?

 

bummer! just read the sticky...of course as a newbie i had to make a post about this haha, thanks for the headsup!

 

no prob. thats the first upgrade all us f2 riders buy. highly recommend getting it now and saving the troubles later. i don't know of any other reason why one cylinder wouldnt be firing in the begining. the coils don't have anything to do with warming up

 

ya just sounds like i completely mis-diagnosed it, after reading the cct thread it sounds like exactly my problem

 

To confirm that all cylinders are running, wait until it's been running suspiciously for as long as possible, and then touch the header pipes. One will be distinctly cooler than the other 3.

 

 

Could be but ive never heard of plugs fouling after a few uses. you can always clean them if they are. does you engine still run on only 2 cylinders??? i would check the coils to see if there alright.

 

i have a question, if i don't use the bike for 2 days the petcock still send gas to the carbs?, because i have a similar problem. if i dont use my bike for 2 days, when i try to start the engine i cant, because the spark plug didnt fire, and yesterday i remove the spark plugs and 2 had gas, the color of the spark plug are ok with a little bit of carbon but clean. somebody had a similar situation?

Cris