there really wasn't a reason to move my thread into this deserted non-sohc bike forum, but thanks anyway to whoever that happy person was
And, except for your selfishness, foisting non-sohc4 questions onto people who probably don't know much about the bike you're having problems with, there wasn't any reason for you to post in the SOHC4 technical forum in the first place.
The bikes in question are only similar in your mind, as you can count the number of parts that interchange between genre on your fingers. Further, CV carbs work rather differently than mechanical slide carbs found on most SOHC4s (and ALL CB750 SOHC4s).
If you are going to be disingenuous about posting rules, don't be Mr. Whiney when when you are put in the proper forum, as you should have done from the start, and already know this to be true. So, thank YOU for taking full, wrested, advantage of kind hearted souls.
After your rage has subsided, read this if you still desire help:
To your original question...
Have you set the idle speed for when the engine is cold?
They naturally run faster when warmed up, as there is no computer to keep the idle speed constant over temperature, like there would be in a modern bike or car. All the SOHC4s behave this way. Some SOHC4s (not all) have a fast idle cam linked to the choke for this reason. The ones that don't, require the operator to hold the throttle open during warm up for increased idle speed. (if you'd have searched the forums first, you'd have learned this already.)
Does your bike have a choke knob? Does it increase the idle speed? If it has a fast idle cam, is it adjusted properly to give you faster idle when actuated? Is your idle speed adjustment set properly for when the engine is at operating temperature?
Do you know how to make these adjustments?
Have you vacuum synchronized your carburetors?
Welcome to the proper forum...
