Hi, basically my top end blown up a while ago and i got a new one and run it in properly with the correct ratio 50:1 and never went past 30mph for 300 miles. But now, i added a pm tuning 360 exhaust because i finished running it in and the top end doesnt get to 55mph like it was before the bike blew up. SPECS BELOW. Pm Tuning 360 Exhaust 5.3g Rollers 72 Jet Everything else standard The exhaust is derestricted and the only thing i can think off would be that the rollers might need to be replaced but the acceleration is fine.
what exhaust was on before the new 360 was added, was it a like for like swap or was it a different make. may need to rejet ?