What I did with mine was to take the exhaust off and check the combustion on cylinders ( on H75), I needed to adjust the valves clearance on 2 cylinders to make them all run equally. I run my engines on a mixture of coleman fuel and Lucas oil upper cylinder lubricant ( or marvel mystery oil ) 70:1 ratio. It works better than VP on these engines. Much cleaner and combustion is better as the compression on these engines is low for 94 octane fuel. Your sparks stays cleaner too and no wet soot of unburn fuel and oil out of exhaust. Another thing to note is using water itself in the cooling system will corrode the parts.
@Making With Z I'm using corrosion inhibitor coolant ( green ) using 70 to 30 water. It gets cooler faster specially if you run the engine for long periods ( 20 mins plus ).
Another tip if you like to follow is. Attach a wire from the ground point of the CDI ( under the base) and tak it to under one of foam legs, add a tiny bit of super glue to make it stick. This will prevent arching and damaging the CDI or hall sensor on these engines. . I also wrap a very thin loop of wire to the end of each spark plug to ensure the full contact with the ignition lead. I have no misfires or damaged spark plugs
Amazing haven’t seen anything like this
What fuel does this run on? Nice video, thx!
What I did with mine was to take the exhaust off and check the combustion on cylinders ( on H75), I needed to adjust the valves clearance on 2 cylinders to make them all run equally. I run my engines on a mixture of coleman fuel and Lucas oil upper cylinder lubricant ( or marvel mystery oil ) 70:1 ratio. It works better than VP on these engines. Much cleaner and combustion is better as the compression on these engines is low for 94 octane fuel. Your sparks stays cleaner too and no wet soot of unburn fuel and oil out of exhaust.
Another thing to note is using water itself in the cooling system will corrode the parts.
Thanks Binnie, I will try that. What are you using for a coolant?
@Making With Z I'm using corrosion inhibitor coolant ( green ) using 70 to 30 water. It gets cooler faster specially if you run the engine for long periods ( 20 mins plus ).
Another tip if you like to follow is. Attach a wire from the ground point of the CDI ( under the base) and tak it to under one of foam legs, add a tiny bit of super glue to make it stick. This will prevent arching and damaging the CDI or hall sensor on these engines. . I also wrap a very thin loop of wire to the end of each spark plug to ensure the full contact with the ignition lead. I have no misfires or damaged spark plugs
Slick work.
Did you mount the engine to anything.?