Topic: 78 550 carb probs

[nmcleary]

I just synced the carbs. It is running much better. Sounds better, much better throttle response. The only thing is now the idle will stay at 3K for  10-15 seconds before coming back down when coming to a stop. It did not do this when I was syncing them. Throttle snaps back well with motor off. Bike is a 78 550 with pods and a 4-into 1. 100 mains. Any help would be appreciated.
-Nolan

[OldSchool_IsCool]

Any popping on decell?

[nmcleary]

A little bit. Also a little when warming up.

[OldSchool_IsCool]

Pull your plugs.  Are they more white then tan?  Are your exhaust headers turning blue-ish?

I'm thinking you are running lean. 

[nmcleary]

Sounds good. will have to wait until tomorrow thou.
thx oldschool