Yamadad I need you again!!!
This fall I cleaned the carb, replaced fuel with a little premix (still using auto lube) and removed my battery assembly since its dead and the electric start doesn't work anyway.
Today I got it fired up, drove around the yard a couple times and loaded it up on the trailer and went to the country. Drove the ditch a ways and had good power until after I slowed down I couldn't speed up, seemed to get boggy and I could not get the RPM's past 4500. Stopped to check plugs, they seemed fine, not over rich but I replaced them anyway. Started it up, could go for a little ways and it got really boggy again. Stopped, plugs were fine but I again replaced them. Started it up and made it back to the truck and loaded it up.
Once I got home I checked compression, its 105 across the board. Also remember this is a newly rebuilt motor. Starts great all the time. Perhaps rings aren't seated yet, its only got 30 miles on it. I lifted the back end and gave it hell and watched the clutches, they seem to operate fine as I can tell. I'm sure they could use a cleaning however.
A side note, when I did clean the carb, I did it while the throttle and oil line were still connected. I just removed the bowl, I didn't pull the air screw off the top and I had a hell of a time with one jet, I forget which one now but I blowed everything out with carb cleaner.
Advice for me? It ran good last season, only thing I've done is partially clean carb and remove electric start assembly with battery. I'm thinking I'll need to pull the carb again.