This thing runs pretty good. Just not closed to the RPM's I think it should run. Adjusting the H out, really doesn't change anything, unless I'm closing it. Took the recoil off and found a pretty bad crank seal leak. Very wet around it.
Question: Would a crank seal have that same affect on the H adjustment?
#2
StarTech
Yes with the BR600 being a 4 mix engine the crankcase is part of the fuel system.
RPMs per service manual
Operating speed with nozzle: 7200 rpm
Idle speed: 2500 rpm
Crankcase leakage test
at gauge pressure: 0.5 bar
under vacuum: 0.5 bar
Also make sure the valves are adjusted to spec and that the valve cover has a new gasket.