1976 Yamaha xs500 problems

[Joee]

Just started the bike up after a few kicks and let it sit at idle for like 3-4 minutes and noticed that the left side of the engine wasn’t as hot/warm as the right side of the engine. What would be the problem and solution to this?

Just to note, there is no fuel restriction because the fuel flows perfectly, just fixed that up a couple days ago.

 

[JJames]

Just a couple ideas off the top of my head. Are your carbs syncd (idle speed). More likely, overly lean or rich mixture in either cylinder could account for temp difference. Check your idle mixture screws. I wouldn't recommend idling for too long while stationary without a good fan to provide some cooling. Good luck.

 

[Joee]

Just a couple ideas off the top of my head. Are your carbs syncd (idle speed). More likely, overly lean or rich mixture in either cylinder could account for temp difference. Check your idle mixture screws. I wouldn't recommend idling for too long while stationary without a good fan to provide some cooling. Good luck.

Thank you. I’ll check out and make sure the carbs are synced then see if that helps. If not I’ll be back lol

 

[Jan_P]

I read this as work has been done to the fuel delivery.
Standstill ??
My first thought is stuck ..or not properly moving float valve
Close the fuel and run it and then open ..tapping with a screwdriver handle on the carburetor outside
Noticing if it helps
And please provide more info

 

[Joee]

I read this as work has been done to the fuel delivery.
Standstill ??
My first thought is stuck ..or not properly moving float valve
Close the fuel and run it and then open ..tapping with a screwdriver handle on the carburetor outside
Noticing if it helps
And please provide more info

Will do. I’ll update you when I test it!