Originally Posted by
earlwb
Yes I see that you liked my pictures of the engine. Yes one had to be a bit careful with the needle valve. But really the needle valve sucked as it has a sharp taper and the engine is almost unadjustable like that.
I picked your pics because of the nice background and sharpness.
(OK, OK, mostly I didn't want to bother getting out the camera)
I got a real kick out of making that stamped piston version run.
None of my friends thought it could be done, and even if it did, the wrist pin holes would tear in the piston.
The only thing I had to do to make it run (as you predicted) was unscrew the spray bar assembly and drill out the intake tube for an OS 35 spraybar.
It was just right for the engine, ran at around 3 or 4 turns and wasn't especially sensitive. (probably due to the very low compression)
I was kind of hoping to get another stamped piston version, but had to settle for a traditional ringed piston model.
If you can put a CDI on yours, your points will last forever and you'll have the thrill of seeing the "GHQ fire belch" again.
(every time I run mine, it occasionally shoots a 12" flame out of the exhaust while trying to get it started.)
Cheers!
Nick
