Above 30 mph bogging in colder temp By seanstr (Read 8,997 times)

[seanstr]

OK, after like 2 hrs of trying to tune the carb, needle clip settings, jetting, idle fuel mixture. I found a tear in the diaphragm. Replaced that then changed back to the original main jet. It's got to be a 109. The 108 acted differently. So it's cool and windy. 55 degrees. 20 mph winds. I got it up to 49 mph again going down hill and with the wind partially behind me. It still bogs at 49 mph. I have the needle set at the second to the last clip setting from the leanest. If I go all the way to leanest then I can't take off very well.

If I go to the richest it cannot get part 45mph.

I'm not sure where to go from here.

I'm still all eyes waiting for advise.

Do one change and check results.

[seanstr]

The next set of jets are on the way. I will try a lower jet size and hope for the best.

[seanstr]

I have the scooter running well. I have a 835 x 20 x 30 and the carb is tuned and I am getting about 73 mpg.

Do one change and check results.

[seanstr]

Ok, update. The true problem was the petcock. Once that was replaced, all is well.