039 Help. Doesnt have much power?

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matt9923

matt9923

Stihl bustin knuckles
Joined
Dec 17, 2008
Messages
4,330
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CT
Ok i put a new impulse, fule line, karb kit. And now i fixed the idle problem. Bu tnow it has no power? and it doesnt get up to high rpm and its rought on high idle? I hav ethe high idle screw out 1 turn? Where shoudl it be?
Thanks Matt (om ready to smash it with a hammer)
 
Peacock

Peacock

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Try turning the H and L screws in all the way gently then out 1 turn. Adjust idle from there. That sould get you pretty close. You may have to tune the L jet a bit for throttle response from there. You'll likely also have to tweak the H jet a bit.
 
matt9923

matt9923

Stihl bustin knuckles
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Ya i have it 1 turn out.
I can get it to run to lean or to rich? I need to get a new tach. What should it be at?
Also the new fuel line leaks? why is it lose i need to put some liquid gasekt on it.
Matt
 
matt9923

matt9923

Stihl bustin knuckles
Joined
Dec 17, 2008
Messages
4,330
Location
CT
Thats not right. It shouldnt leak at all. Something is wrong.:)

Ya i know its abrand new OEM part but its a little lose? Idk why ill fix it with soem liqud gasket and see if she runs better!!!
What do u use to decarbonize? seafoam
Matt
 
matt9923

matt9923

Stihl bustin knuckles
Joined
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Messages
4,330
Location
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Agreed there sould be no leak. The lines fit tight, and should require some effort to even rotate in the hole(fuel tankhole).

Idk why the old one was tight this one isint. But anyone know how to properly adjust carb and why the saw has no power?
 
Rookie1

Rookie1

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:) Im guessing you have either overlooked something or that fuel line not sealing in tank has something to do with it too. You should be able to back out both H and L 1 turn and it should run. Not perfect but run. Can you run down all the things you have done already? If not a problem.:confused:
 
Lakeside53

Lakeside53

Stihl Wrenching
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Dec 25, 2004
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Woodinville, WA
You don't have the hose seated correctly. Do NOT use any sealer... fix the problem..
Are you sure you have the correct hose? It should have "1127" molded onto one end.
 
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