On throttle, I can hear some backfire from exhaust. Also high idle when coming to stop, it goes away, but is a concern. What should I look for or have done.
Are you running on original pipes or have you installed aftermarket pipes that are louder ?? I had the same problem with aftermarket pipes and come to find out my carbs were not jetted the way they were supposed to have been done when I installed the pipes.Also there are two chrome tubes starting at the front of the engine going under the seat towards the rear--- there is a rubber hose connection connecting each side .You should disconnect these hoses and bypass the tubes-- in other words use one hose to connect the front two tubes together and the other to connect the rear tubes together , its some sort of early emmission thing that will cause some backfire
Check for vacuum leaks around the carb intakes it sounds like you may just have a crcked vacuum line
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