1999 Sporster Questions (sluggish engine)

[eskimogorge]

I am new to the forum and very impressed with everyone's eagerness to help out! (thanks a million from a new boater). I have a 1999 Sporster 1800 with twin 85hp rotax engines. The starboard side engine hesitates as I move the accelerator forward but it picks up again if I really pour the gas to it- its like it doesn't want to run between 2500-4000 rpms- is this a spark plug issue? Also- is replacing the impellers a Do-it Yourself job for someone with intermediate handiness? Thanks for your help- Aaron

 

[timmyboy76]

pull the airbox off the carb, and push the throttle forward, but at same time, look'n down throat of carb. You should see gas "squirting" from a brass nipple protruding thru the carb. If not, take carb/s apart and clean them..

For impellor/wear ring replacement, yeah, but need a impellor removal tool...

 

[eskimogorge]

Thanks for your help- I'll give it the ol' college try sometime this weekend!