ninjette.org - View Single Post - Slow throttle response and slow return to idle help

jkv45 · July 15th, 2013, 07:33 AM

Check for a vacuum leak around the boots between the carb and head. You can spray some WD-40 or similar fluid around the area and listen for a change in RPMs.

Also look at the routing of the throttle cables, and confirm that the throttle snaps shut when you open the throttle (engine off) and let it go.

I would completely drain the gas and add 1 oz per gal of a strong fuel system cleaner like Techron Concentrate to a fresh tank of 87 octane Ethanol-free gas (if you can get it).

July 15th, 2013, 07:33 AM	#2
jkv45 Rev Limiter Name: Jay Location: WI Join Date: Jul 2013 Motorcycle(s): '06 SV650n, '00 Derbi GPR, '64 CA77 Dream 305, '70 CL450 Scrambler, numerous dirt bikes Posts: A lot. MOTM - Jun '18, Oct '16	Check for a vacuum leak around the boots between the carb and head. You can spray some WD-40 or similar fluid around the area and listen for a change in RPMs. Also look at the routing of the throttle cables, and confirm that the throttle snaps shut when you open the throttle (engine off) and let it go. I would completely drain the gas and add 1 oz per gal of a strong fuel system cleaner like Techron Concentrate to a fresh tank of 87 octane Ethanol-free gas (if you can get it).