'81 550T?ring job

[Buffalo Bill]

Bike is running, have taken test ride, but?

Bike is running, have taken test ride, but?

Yes, I got it all back together and have ridden 40 miles!
I rode down some lonely country roads and did a lot of up and down the RPMs to set in the new rings. I'm following advice from Dan's Repair Info web site: http://www.dansmc.com/engine_breakin.htm
The bike has a problem though, it won't hold an idle without some help on the throttle, and raising the fast idle is not the solution. This problem predates the ring job. I hope it's just a mixture or cleaning issue. It seemed to develop slowly last fall.
Bill

 

[Suzuki_Don]

Yes, I got it all back together and have ridden 40 miles!
I rode down some lonely country roads and did a lot of up and down the RPMs to set in the new rings. I'm following advice from Dan's Repair Info web site: http://www.dansmc.com/engine_breakin.htm
The bike has a problem though, it won't hold an idle without some help on the throttle, and raising the fast idle is not the solution. This problem predates the ring job. I hope it's just a mixture or cleaning issue. It seemed to develop slowly last fall.
Bill

BB it sounds like you are too lean on one or more of the carbs at idle. Try a mixture adjustment. Check which spark plug looks lean. Also do a vacuum synchronisation to get all throttle valves equally adjusted.

At what mileage do you intend to retighten the head bolts.

 

[Buffalo Bill]

Mixture-pilot screws?

Mixture-pilot screws?

BB it sounds like you are too lean on one or more of the carbs at idle. Try a mixture adjustment. Check which spark plug looks lean. Also do a vacuum synchronisation to get all thrttle valves equally adjusted.

At what mileage do you intend to retighten the head bolts.

I went through a carb tuning in March-2009. Ran good at that time. I will do it again. Just a quick look at the pilot screws I see they're 3 turns out, the service manual spec.s show 3-1/2 out.
I haven't thought about a torque re-tightening, but now I remember that from my race car days 20 years ago. Maybe after 200 miles, as I will change the oil and filter too.
Thanks for the reminder.

 

[Suzuki_Don]

I went through a carb tuning in March-2009. Ran good at that time. I will do it again. Just a quick look at the pilot screws I see they're 3 turns out, the service manual spec.s show 3-1/2 out.
I haven't thought about a torque re-tightening, but now I remember that from my race car days 20 years ago. Maybe after 200 miles, as I will change the oil and filter too.
Thanks for the reminder.

No probs. Glad to help.