30-11-2015, 12:36 AM
Correct about 4,200 is the limit on stock motor.
Can be upped fairly easily though, even just by allowing the level on the pump to swing round further can get a few hundred more rpm out of it and no messing with internals!
Can be upped fairly easily though, even just by allowing the level on the pump to swing round further can get a few hundred more rpm out of it and no messing with internals!