visioneer_one
RCTalk Racer
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Have a mate that just bought a Sirio .18 off eBay. We bolted it into his Sportmaxx and ran it that day. I seem to recall that the low end was unusually rich, and had to lean that needle in order to get it to start, but once it lit off it ran like a champ.
Two weeks later. The engine has become incredibly difficult to start. Once it lights it runs ridiculously hot at the top end (but runs rich at the low end), and will barely idle.
He's pulled the backplate and carb base and has sealed them with RTV. It appears to be leaking fuel around the front bearing... there appears to be a fine spray of residue in that area.
I'm guessing that might be the source of the lean top end. Doesn't seem like that would cause the rich bottom end, though.
He's also thinking that he may need to replace the piston and sleeve. Having to drop another $120 into an engine he's had for two weeks would SUCK.
Guidance?
Two weeks later. The engine has become incredibly difficult to start. Once it lights it runs ridiculously hot at the top end (but runs rich at the low end), and will barely idle.
He's pulled the backplate and carb base and has sealed them with RTV. It appears to be leaking fuel around the front bearing... there appears to be a fine spray of residue in that area.
I'm guessing that might be the source of the lean top end. Doesn't seem like that would cause the rich bottom end, though.
He's also thinking that he may need to replace the piston and sleeve. Having to drop another $120 into an engine he's had for two weeks would SUCK.
Guidance?