Why does my 350 rpm not go down?

Yes, it’s supposed to go down after it warms up… but if that fast idle screw isn’t adjusted right… well, there is a lever that the fast idle screw controls along with the choke… and if it’s out of adjustment, won’t allow the choke to work the lever up as it should to allow the rpm’s to drop when warm.

What to do if your 350 won’t go down?

Assuming you adjusted the idle screw I would make sure the throttle cable or the gas pedal isn’t hanging up somewhere since you’ve had the problem with 2 different carbs. Try removing the throttle linkage and see if the idle goes down. If it doesn’t then you have a problem with the carb and/or intake. Good advice, thank you.

Why is the idle on my 350 so high?

It remains high no matter way I do…. At this point in time it doesn’t hurt to give it a shot though. Make sure you do not have a busted diaphram inside the brake booster. This could cause a high idle also. Infact, any vacuum leak could cause a high idle.

Can a GL1000 do a lazy return to idle?

The idle circuits in a GL1000 are ridiculously small, so slight problems are greatly magnified. To summarize, the solutions for a lazy / slow return to idle (or erratically high idle) are: Perfect idle circuits – usually requires a thorough carb overhaul, but this is worth trying this in situ carb cleaning method first.

Why is the intake manifold on my 350 not going down?

I also found two parts on the intake manifold that have like 3-4 openings each and are about 2-3 inches tall they are near the thermostat/upper radiator hose and they just sit there. Seemingly serving no purpose or am I wrong?

Why does my 350 rpm not go down?