hello people , could someone be able to tell me why at 1800 rps my motor pops or back fires through my carby and only one and at any temperature ? :dash2:
Hi! Possible plugged idle jet? See DavidR's comment:
http://www.fjowners.com/index.php?topic=4334.0 (http://www.fjowners.com/index.php?topic=4334.0)
Chris
Quote from: VOYAGER on June 10, 2014, 04:48:45 AM
hello people , could someone be able to tell me why at 1800 rps my motor pops or back fires through my carby and only one and at any temperature ? :dash2:
Could be something as simple as bad gas try using a tank of premium blend
Fuel won't cause that symptom unless you're running something insane like nitromethane mix.
I think you need to pull the carbs and clean them. You might try some additive first but usually there is no substitute for cleaning them. Your problem is most likely in the idle air, pilot jet area. They are not hard to clean. Lots of information in the files section to read.
If you haven't done them before you might try to get another member in the area to give you a hand.
George
Quote from: Niloc on June 10, 2014, 12:49:16 PM
Quote from: VOYAGER on June 10, 2014, 04:48:45 AM
hello people , could someone be able to tell me why at 1800 rps my motor pops or back fires through my carby and only one and at any temperature ? :dash2:
Could be something as simple as bad gas try using a tank of premium blend
Sounds like a vacuum leak to me. Check intake boot clamp at carb,cap on top of intake, connection at intake to head is tight. Might be time to replace intake boot o rings.
Scott