Stihl 064 Tilly Carby

[Stocko]

Hi I need some help with an 064 carb. It has a Tilly on it that I can’t lean out out enough to hit 13k. I put a bing carby from another saw and I can tune no prob.

I have been through the carb but no luck. Inlet n impulse hold vacuum.
Carby is clean
Lever set a floor height

Any help ?

 

[Dolkitafreak]

Hi I need some help with an 064 carb. It has a Tilly on it that I can’t lean out out enough to hit 13k. I put a bing carby from another saw and I can tune no prob.

I have been through the carb but no luck. Inlet n impulse hold vacuum.
Carby is clean
Lever set a floor height

Any help ?

Post a picture of carb, could be exterior governor or a bypass in the back of nozzle. Post a pic under the metering cover.

 

[srcarr52]

I think the lever should be set below the floor. Best way I've found to set a lever, without having all the proper gauges, is to run a small screw driver shaft over the top of the diaphragm sitting on the lever... it should just barely bump the rivet.

 

[Stocko]

Post a picture of carb, could be exterior governor or a bypass in the back of nozzle. Post a pic under the metering cover.

 

[Stocko]

I think the lever should be set below the floor. Best way I've found to set a lever, without having all the proper gauges, is to run a small screw driver shaft over the top of the diaphragm sitting on the lever... it should just barely bump the rivet.

Lever seems the right height doing that

 

[Dolkitafreak]

Image 1, the top of lever should be flush with the body where the red line shows, which it appears to be!

Imagine 2: fuel is pulled through that hole and over to the main nozzle. It is a threaded insert, plugging that will reduce what is pulled into that bypass and it will rely more on what is pulled into the high screw channel that feeds the nozzle. Plug the circled brass insert with JB weld and it will lean your high end.