Ok the spring is still there… I checked valve clearance and they were only .01 off. Did my best to get them perfect… I adjusted the throttle stop screw, that sets the max throttle, to stop the throttle a little sooner. That got it sounding alot better, but not like it use to.
Checked oil, checked air filter, and sediment cup. All Is well…
Theres 1 more throttle adjustment screw that faces the exhaust side that I might mess with a little… i think it adjusts the actuation of the throttle under load If I’m not mistaken…
Belts are also In decent condition.
So far it seems to be a engine speed problem based on throttle.
My tach is broken sadly… but I know it likes to run around 3600rpm… any more or less and its not as smooth.
I will update more once I try adjusting the throttle screw and check the spark plug(its only 3 months old though, so probably fine)