She runs hot...On one side...

[olewahrhorse]

Slowly trying to work thru several issues...Two biggest are the left cylinder seams to run hotter than the right. Exhaust header is a lot hotter. Part of which maybe a fouled right plug. I have constant spark with the timing light. The exhaust out the mufflers is noticeably different. But also looking at timing, with the light, I am seeing my advance jump around. The light also has a built-in rpm indicator. It doubles in rpm the moment it jumps. Engine sound is normal. Could that be a faulty condenser. I've never had one go bad. Back to the hot right exhaust, I plan on syncing the carbs tonight. I set the valve lash and cam tension. What other culprits could cause this?

 

[Its been a long time]

Is the timing advance actually jumping around or is it an issue with the timing light? If it's genuinely jumping around, it's a simple task to strip and clean the auto advance assembly. Including cleaning and lubricating the advance rod that runs down the centre of the camshaft.

 

[Grimly]

Dial in 1 degree of advance on the timing light, if it's got that feature.
I found with mine jumping around, that settled it down.

 

[dave_a]

Left side is hotter because its doing all the work: firing & burning fuel. The right has a problem.
Could be ignition or carburetion or mechanical. Do you know the right side compression? (or left)?
Have the carbs been synced for equal airflow?.
You can't tune a carb if your ignition is messed up, (you just chase your tail.)
I always make sure my ignition is 10 out of 10. Have you set points, timed each cylinder?

 

[olewahrhorse]

Is the timing advance actually jumping around or is it an issue with the timing light? If it's genuinely jumping around, it's a simple task to strip and clean the auto advance assembly. Including cleaning and lubricating the advance rod that runs down the centre of the camshaft.

I'll try it thanks!

 

[olewahrhorse]

Dial in 1 degree of advance on the timing light, if it's got that feature.
I found with mine jumping around, that settled it down.

I'll take a look today...and give it a try...

 

[olewahrhorse]

Left side is hotter because its doing all the work: firing & burning fuel. The right has a problem.
Could be ignition or carburetion or mechanical. Do you know the right side compression? (or left)?
Have the carbs been synced for equal airflow?.
You can't tune a carb if your ignition is messed up, (you just chase your tail.)
I always make sure my ignition is 10 out of 10. Have you set points, timed each cylinder?

That's one thing I don't have here. Compression tester. I am going to revisit my points and advance. With new spark plugs. Then move to carb sync. I have to create the tool for that. Thanks for the advice...