- Joined
- Aug 19, 2021
- Messages
- 1,461

Funny thing is the left pipe is the one that is "slightly" blue, the right is straw color. The right plug is brown and the left is sooty, not oily, just dry and slightly black. Absolutely not a hint of smoke, it ticks over and runs evenly. Both needles in the same notch both 260 main jets. Only thing left to check in the carburetors would be float level. Runs too evenly to have a vacuum leak. Tri-Spark Ignition so not likely ignition related.I agree with dealing with known maintenance items first. There may be 2 things going on. As you know, blue exhaust = hotter, which suggests lean. The soot deposits may be oil?