[size=150]Mate has ST4 that is lacking power. Runs out of go at 125mph and it wont rev over 7000rpm at top end. Runs fine up to there just seems to affect top end power. Any suggestions?[/size]
[size=150]Mate has ST4 that is lacking power. Runs out of go at 125mph and it wont rev over 7000rpm at top end. Runs fine up to there just seems to affect top end power. Any suggestions?[/size]