my shitbox stuntbitch has problems... in neutral if I hold the throttle open a bit, it fluctuates in revs.. ie jumps up and down from where it 'should' be around a 1000rpm or less range (+/- 500rpm) ... any ideas what this could be ? bung throttle position sensor? something like that? it's also noticable while under load (ie in 1st and 2nd gear going along...)

Help me plz motorcycle genii

 

I would mabe start at the IAT valve. its ontop of your air box. and the Fuel Regulator

 

Nevermind on the IAT. I got confused with IAC. I dont think the IAT will help ya much.. make sure you got good gas in it. did ya let it sit for a while? put new gas in it and hold it wide open lol.

 

yeh could have something to do with that.. its been sittin for a few months and tank is near-empty.. guess I'll give some fresh fuel a crack

 

check to see if your getting any FI lights. it sounds like its the MAP sensor. the sensor on the left side of the air box that has a small vacuum hose going into the bottom of it. mines no good and doing the same thing. but mine said it was the MAP and the IAT which is the sensor on the top of the air box.