Calling all mechanics
Iím having a problem and I have a suspicion I may be the cause. Over the winter I did quite a bit of work to my 919 all at the same time. Since then I have a complete dead spot between idle and about 2200-2500 rpms. Itís mainly noticeable in first gear, because thatís the gear that sees those rpms.
During the winter I did the flapper mod, pair block offs, changed factory mufflers for Scorpion slip-ons, changed the injectors / throttle bodies, de-rusted the tank, changed fuel filter, fuel pressure regulator, and replaced the air filter. I also did a valve adjustment and this is where I think the problem lies. I think itís possible I have the cams 1 tooth out of time. Dead spot at idle but it runs marvelously at all other RPMs. It also seems to run just a tad hotter than it should.
The temperature problem could be in my head, and the loss of power at idle could be from the slip ons I suppose. Any input?