Spaceman49
CB750 Member
I have just rebuilt the Keihin carbs on my 1970 CB-750. I ordered and received rebuild kits. But the main jets I received were 150's. The jets I removed were 120's. Now I am having trouble tuning the carbs. I can get the idle about right. Although a little high at 1100. The engine runs flat until it hit s around 4000 rpm and then it kicks in.
Before I rebuilt the carbs the engine ran great but wouldn't idle.
I live in the Houston and I am thinking that the 150 jets are just too rich for this are. Reading the spec's for the carbs say's that they come with the 120's.
Before I rebuilt the carbs the engine ran great but wouldn't idle.
I live in the Houston and I am thinking that the 150 jets are just too rich for this are. Reading the spec's for the carbs say's that they come with the 120's.