Throwing this out there cause I'm outta thoughts.
86 stock bore, drag port, boysen reeds, pwk 40, 160 dgh-4, 110/klutz, k&n, 01 cr ign.
So..., fired it up Friday, 1st time in 5-6 yrs. Ran great til half throttle then ran like plug junk, usual feel. Then thought maybe pipe wasn't hot enough, didn't give the hit. I'm like wtf, the R never does this.
So at the track for test n tune today, new plug, ran 3 4 runs, all the same crap. But never backfired exhaust or intake. So its like its choking somewhere , kinda sound. Bike always wanted a 160 main, I checked reeds there new, checked exhaust not plugged. Pulled carb, area from carb boot to boysen intake... more fuel puddled then I'd like. Not real happy w 160 psi, but that was cold. My inline coolant temp gage was 100 140 150 maybe, that is on the lower rad hose to water pump.
I'm just stumped, all the simple normal fuel air spark is where it was 6 yrs ago when it last ran. Sucks looking like a chump at the drags. Trying to represent the R.
If you guys made it through this post, good job. If yeah got any ideas that I over looked..., going to order new rings... just cause, looking into cylinder from intake n exhaust I didn't see anything concerning. But going to track Sunday to take my 2 quick loses n fix for following race. May work on it in the morning, so throw me ideas.
Humbled @ the moment, not frustrated. TB