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Need air gap on the ignition coil for the above blower.

Let us know if above helps, thanks Mark

Did help, thanks.

Between .010 & .012 inches.

Cannot get fuel from carb. to cyl. Have replaced the carb. and the ignition coil, which was bad, carb,; new one almost as cheap as a Walbro kit.

Have had this beast completely apart several times, still cannot get fuel to the cyl............never had this problem before.

Check and make sure the impulse port is not being blocked.

Impulse port??

Yes impulse port. It is what operates the carburetor's fuel internal pump. If no impulse then no fuel is pump through the carburetor.

Here a tutorial on these.

StarTech said:

Yes impulse port. It is what operates the carburetor's fuel internal pump. If no impulse then no fuel is pump through the carburetor.

Here a tutorial on these.

Walbro Carburetors - So how does this thing work - HeliFreak

This thread is going to cover the internals of the Walbro carburetor that almost all gas helicopter engines use. Specifically the ones found on the

www.helifreak.com

Click to expand...

Thanks for tutorial, will take awhile for me to "absorb" this.

Believe I've found the problem, there is a triangular chip out of the bottom edge of the piston. Going to attach picture but having a problem.