Hello all,
I have a Cb360 that continually runs rich enough to foul the plugs. The points and timing are spot on, valves properly adjusted, and the carbs gone through several times. I gave up back in the spring and parked it. Last weekend I disassembled the carbs again, verified all the passages were clear, and checked all the jets and orface tubes. I even pulled out my postal scale and weighed the floats, slides, and slide springs to make sure they were all the same.
The bike has been in the family since new and it has never been rejetted. It came equipped with 100 mains. It also runs the original spec DE8A plugs. I hve checked the floats to ensure they both float (over night) and they have been set at the spec of 18.3 mm. At a loss as how to lean this thing out. I am thinking about adjusting the floats to 20mm and see if that does it. Anyone have any ideas?
To be clear, this is a stock bike with no mods and running factory air filters and David Silver Spares reproduction exhaust. I restored this bike in 2007 and it ran fine for years, compression is in spec and it has less than 1% leak down. I'm wondering if a recent change in ethynol fuel is causing my issue.
I have a Cb360 that continually runs rich enough to foul the plugs. The points and timing are spot on, valves properly adjusted, and the carbs gone through several times. I gave up back in the spring and parked it. Last weekend I disassembled the carbs again, verified all the passages were clear, and checked all the jets and orface tubes. I even pulled out my postal scale and weighed the floats, slides, and slide springs to make sure they were all the same.
The bike has been in the family since new and it has never been rejetted. It came equipped with 100 mains. It also runs the original spec DE8A plugs. I hve checked the floats to ensure they both float (over night) and they have been set at the spec of 18.3 mm. At a loss as how to lean this thing out. I am thinking about adjusting the floats to 20mm and see if that does it. Anyone have any ideas?
To be clear, this is a stock bike with no mods and running factory air filters and David Silver Spares reproduction exhaust. I restored this bike in 2007 and it ran fine for years, compression is in spec and it has less than 1% leak down. I'm wondering if a recent change in ethynol fuel is causing my issue.