To pull engine and repair, or to run it!

[GA_Boater]

If you are going to remove the valve springs and keepers to check the seals, you don't need an air compressor. Rotate the motor until both valves close on the compression stroke. Then stuff a length of soft rope, like clothesline rope, in the plug hole and continue rotating until the crank stops. The rope will hold the valves in place to remove the keepers.

 

[gm280]

If you are going to remove the valve springs and keepers to check the seals, you don't need an air compressor. Rotate the motor until both valves close on the compression stroke. Then stuff a length of soft rope, like clothesline rope, in the plug hole and continue rotating until the crank stops. The rope will hold the valves in place to remove the keepers.

Pretty good idea there GA, while I have done that rope trick to remove clutch assemblies and such on smaller 2 cycles before, I never thought about doing that to hold the valves in place when changing seals.... Good one! :thumb:

 

[Scott Danforth]

most compression testing gauges use a milton type M end. simply remove the schroeder valve and use it to air up the cylinder. you can also then use the small spring compressor to pull the springs one cylinder at a time.

 

[JaCrispy]

+1 on the rope.

I've done them both ways, with rope and compressed air.