Idle actin' crazy

[Kain]

My CB360 is acting strange when it's warmed up and at idle.

When I start my engine it idles just fine (1200-1500) but after a few minutes of riding and the bike warming up it starts to almost... "stick" at higher RPMs... (I use stick for lack of a technical term)

I'll pull up to a red light and it'll be running at like 3000! If I let the clutch out a little and give it something to pull on it'll sometimes drop back down to a reasonable level. But never to where it should be when stopped at a red. Next light... the idle might be fine at 1200 or it might be at 3000 again or it might be anywhere in between...

Thanks in advance for any help.

 

[VonYinzer]

Check your points and timing. Adjust the idle screw. It only does it when warm? Make sure your carbs are synched, and working correctly.

 

[Sonreir]

+1 on the sync

Running high after warming up could be an indication of a rich condition as well. Check those air mixture screws.

 

[kopcicle]

what he said and ...
Manifold leaks ?

~kop

 

[Kain]

I know I am running rich. Don't think I have leaks... but only tested the carb boots. Will check timing and points too. Thanks for the tips!

 

[skatetheame]

My 360 is doing the same thing and it's running really rich I ordered a carb rebuild kit because the needles and were scored and worn down pretty bad.

 

[Kain]

Where'd you get your kit from? Probably wouldn't hurt me to get one too!

 

[skatetheame]

eBay 2 for bout 40 bucks and shippin

 

[Sonreir]

Just don't get the Keyster kit. Never used one myself, but heard enough bad stories to not want to.

 

[skatetheame]

Yeah I got the K & L kit. Why don't any of the kits come with primary mains?!?!?!

 

[Perdition]

Check your floats. Same thing just happened to my dad's CB450. Idle was fine but the revs were "sticking". One of the floats ended up being way off.