Here is my question my motor seems to jump a little when at low RPM like 1/8th throttle. As soon as i open it up or run higher rpm's it is fine. I have a ported and polished motor by KOR, +3 stroker 30mm OKO carb, open air box, k&N filter. No airleak and 190 compression. Is this normal for tune 2 strokes? or is my jetting still off. I did a plug chop and it looked pretty good. Thanks Mason
KOR ported and polished motor
- Thread starter blasterboy1019
- Start date
just a guess here?? could the jump be the clutch basket and main gear have play??? they all come loss? everyone has this problem
Could it be the nature of the porting, give KOR a bell, they should know the nature of the beast.
The air screw is out like 2.5ish maybe 3 turns. I have adjusted it and changed jets it still does it. I am starting to think this is how they run with all the mods. I will give Ken a call after the weekend. I just was seeing if others had this problem. Basket is tight motor is fresh rebuild only 2 hours of ride time on it.
190PSI? are you sure? That doesn't sound right, are you running race gas? with that high you would have to.
Yes 190 PSI. Running 100 octane 32/1 mix. I forgot to had add head work done too. And everything has been retightened. And plus 4 timing
