Which pilot jet for Athena 170 and snorkel delete DT125RE
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Put a 22.5 pilot in and it’s running super lean like it’s got an air leak I sprayed carb cleaner around the manifold, carb and boot can’t say I noticed a leak, cleaned the carb (brass tubes, air vents, jets) previous owner had it running with a zip tie on the choke plunger when it was stock ages ago since I put the 170 in and new jets I took the zip tie off and runs super lean again, turned the air screw all the way in no difference, only runs well with choke partially open
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Check the left hand crankseal for air leak as well.
I will have to check the Mikuni carb for how the air screw works, does it bleed air or allow fuel through.
Either way, the choke is going to increase the fuel and air via the independent fueling circuit.
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@Calum How do I check for crank seal leak? It’s not burning its gear oil, I sprayed fluid into the oil filler cap on the stator side while it was running and didn’t seem to take anything in
@lucasg.03 Take off the stator cover and see if you can see a dribble of goop coming from the seal behind the flywheel (also possibly a good time to get a flywheel puller if you don't already have one, I think Yambits sell one). Once you take off the flywheel and stator you can replace the seal in situ as long as you're careful not to mark the sealing surface of the crankshaft.
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