Well----12 volts from the battery cranks the starter.---But 12 volts from battery is not used to make spark for the plugs.----Work carefully before big $$$ mistakes are made.
Cylinders could be scored.---Head gasket could be blown.---Piston and rings could be worn out.--------Your arm could be weak.-----Test with a rope on the flywheel.-----And no the throttle does NOT need to be open.----And no it it is NOT a reed valve issue.
This thing is NOT running with full power.-----How many times do you have to be told ?----Sorry to be blunt.-----If you have torn the carburetors down 5 times it is not a carburetor problem.----Checked the flywheel key ??----And no you can not find a sheared key with a timing light!
Just install a new gasket.----And replace the seal on the crankshaft.---Remove seal housing 3 bolts.----Dealer will help with getting you the parts.----First picture is a foam seal and not that important.
Almost impossible.-----Did you screw the plug wires into the coils before installing the coils ?----I have a number of these motors and never had this issue with factory parts.----Set the breaker points with a meter ?
" Performance " means different things.----No a CDI motor might start easier with no maintenance required.----But a motor with CDI ignition does not go faster.
Running way too hot.-----Due to preignition.----Lugging with too much pitch on prop.----Timing too far advanced.----Water pump ignored ETC , etc.----Yes lean on oil too.
Points are a cheaper system to own if you know how to maintain them , do the work yourself.----If you run to the $100 / HR shop for every little hiccup then electronic is the bestest way to go.
Take the VRO pump apart.---See what is wrong.----Repair as needed.----The VRO is driven by CRANKCASE pressure pulses.---So check that.,----A cylinder compression test may offer clues.
Did you install the motor yourself ?----Did you follow a procedure to set this motor up.---Like verify that lube system is ready to operate, no air in the lines ?
I would say that if motor is only reaching 3000 RPM you have one cylinder not contributing POWER to reach 5000RPM.----This should be simple to diagnose.----Your motor needs 4 things to run.---Spark at the right time ( flywheel key )---Correct amount ( too much is no good ) of...
Most motors will rev up in neutral !!!!-----That testing means NOTHING at all.---They rev up running on 2 of 3 cylinders.-----My lawnmower runs great on the driveway.-----Stalls when I push it too fast in tall grass.------POWER is what a motor needs to rev properly under a load.----Seems to be a...
