FZ6S 2006 throttle problem
Hi, everyone, if anyone has knowledge, please help. I have bought fz6 s from 2006 sone 11 months ago, and after few months it would, after some wormup start to sputter and shake badly when throttle is twisted a little more. Under light twisting of the throttle, everything was OK, as well as when cold. The problem would stop by itself after few tens of km, or the next day. It would occur every month or so once, and as I can tell after a day or two of non riding, usualy if it was ridden every day, all was OK for some time. In past two weeks the problem aggravated, and again after wormup (10 min of riding) it would start again, now with poor idle too (sounds like two cylinder engine). I checked coild, plug caps and replaced sparkplugs (CR9EK), but all that's changed is a little more throttle can be twisted before shake. Ah, yes, on idle it would run like 2 cyl mixed with almost normal sound intermittently. Thank You in advance for any input, Niksa.