Was given a non -running Stihl 034, chain looks new, reported to be low compression.
I checked the compression as 140-150, removed muffler and piston/cylinder look great.
Dumped old bad gas from tank, and gave it a prime of mixed gas into carb throat and got a run in about 3 pulls, added good gas and got a idle run, idles good.
Problem: When I try to piss rev it bogs and I have to get off throttle fast to get back to idle low idle jet adjusts ok at around 1 1/2 turns out, H jet don't seem to change anything about the response hardly and trying to lean or enrichen the L jet don't help the bog any. Checked fuel line and filter as ok. Acts like starves for fuel when trying to piss rev.
I'm thinking carb or carb kit.
Pulled the carb and see ZAMA C3 and what appears to be 819 37A (not sure about the 8 (might be a S or ?)
and ZAMA Hong Kong on the top plate.
Could this be a OEM carb? (from Hong Kong)
When I went to looking at carbs it looks like a 1125 120 0606 or a 1125 120 0617 in the pictures. (at around $60)
I also see one that is a 1125 120 0615 with a snout that does not match mine. What's with the snout type?
Thinking of just using my ultrasonic and doing a kit to the existing carb first.
The kit for mine appears MAYBE to be a 1128 007 1065 or a ZAMA RB-31??
I removed the single screw plate end that Has the ZAMA Hong Kong and the screen is clean and the little diaphragm looked pliable.
Anyone had any good/bad experience wrestling with the carbs on the Stihl 034???
I checked the compression as 140-150, removed muffler and piston/cylinder look great.
Dumped old bad gas from tank, and gave it a prime of mixed gas into carb throat and got a run in about 3 pulls, added good gas and got a idle run, idles good.
Problem: When I try to piss rev it bogs and I have to get off throttle fast to get back to idle low idle jet adjusts ok at around 1 1/2 turns out, H jet don't seem to change anything about the response hardly and trying to lean or enrichen the L jet don't help the bog any. Checked fuel line and filter as ok. Acts like starves for fuel when trying to piss rev.
I'm thinking carb or carb kit.
Pulled the carb and see ZAMA C3 and what appears to be 819 37A (not sure about the 8 (might be a S or ?)
and ZAMA Hong Kong on the top plate.
Could this be a OEM carb? (from Hong Kong)
When I went to looking at carbs it looks like a 1125 120 0606 or a 1125 120 0617 in the pictures. (at around $60)
I also see one that is a 1125 120 0615 with a snout that does not match mine. What's with the snout type?
Thinking of just using my ultrasonic and doing a kit to the existing carb first.
The kit for mine appears MAYBE to be a 1128 007 1065 or a ZAMA RB-31??
I removed the single screw plate end that Has the ZAMA Hong Kong and the screen is clean and the little diaphragm looked pliable.
Anyone had any good/bad experience wrestling with the carbs on the Stihl 034???