Originally Posted by Low Budget
Thats alot of junk built up on the 9 for only 1.5 hours......especially if you were on the pipe alot and you say it wasnt stuttering and seemed to run good.
On that setup, did it four stroke or foul at low RPM or idle ? What kind of fuel are you running. What kind of oil and what ratio ?
Second plug is looking fairly good, but, I woulda guessed you had a hour of run time by its looks.
yeah, i'm not used to seeing plugs with that much stuff on them. it looks way worse in pics than the naked eye.did not foul or 4 stroke at all. idles fine. starts first kick without tickler when hot. needs tickled when cold. runs great at all throttle positions, no bog/stutter anywhere. on the pipe all the time. bike can't get out of it's own way until 6000rpm+.... running 93/112 50/50 ratio. 40:1 amsoil dominator.
i generally jet using the put it in third gear, cruise around, then wack throttle to the throttle position i'm jetting. see if it reacts properly, gets on the pipe right, pulls through transitions properly.. i also extensively check jetting uphill in wrong gear to make sure it pulls hard and doesn't 4 stroke/bog out under load.
i'm thinking b8es might spark better - i think i'm in the right heat range and timing now - the threads/strap are discoloring about right..