high idle and backfire

[Anonymous]

Just getting to know my GS450. Today, as i was taking it out for a spin, it started to idle high (5000rpm-) and even in first gear, at a closed throttle, at a light. when i kill the engine, there's backfire.

I just got it back from the shop so everything should be cleaned.
thanks for the help.

[Anonymous]

Sounds like an air leak. Look at your intake manifolds, I bet they're either cracked or someone didn't tighten the clamps down.
Axel

[Anonymous]

Throttle cable good and free? Idle change when turning from side to side? Bob

[Anonymous]

turns out that the symptoms don't happen all the time. So far it happens after the bike is running for a while, after 1/2hr (?).

[Anonymous]

Take it back to the shop...that's an option too.

[Anonymous]

Hey I got a GS450 too and it does the exact same thing. I cleaned the carbs and it helped a little, but still does it to some extent. I adjusted the choke a little and it helped. Your idle might need a little adjustment after it gets warmed up. I have to fiddle with the choke and idle untill it runs happy. Oh yeah and mine backfires too! hehe

Goodluck.

[Anonymous]

Me too...

My GS450L used to idle high when warm. Seems that after tweaking the throttle cable and idle adjust screw I have fixed the problem. Just make sure that all your adjustments (including mixture) are made after the bike is really warm. Just my .02.

Question for you guys? Where to get me a 2 into 1 black exhaust system??