Hey guys, i have a new project going on here, I picked up a generator with a blown engine (10hp tecumseh) and a (supposedly running) 10hp tecumseh. Anyhow i checked the compression on the good engine and it was only about 60 psi. So i opened the engine and the cylinder looks excellent (some hone marks are visible) but the valves weren't seating all the way at TDC, so i removed the springs and had the weirdest problem ever. The intake valve's bottom was too big to fit out of the valve guide, weird right? The valve looked unburnt, so i left it, i lapped the exhaust valve (burnt to hell) and gapped it. After reassembly it still has only 60 psi. It sparks, has compression, and i spray gas in the intake and it doesn't even try to fire. I am using the electric starter. I tried the pull start but its very hard, im thinking it may have a sheared key. Any opinions im stuck
10HP tecumseh wont start!
- Thread starter solomon
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EagleTalons
Master JB Welder
Is the timing off on the cam?
Daveon
New member
Check the key on your flywheel
Got the engine to fire today! I pulled the flywheel, key was fine, i then saw it used a points system, so i sanded down the points, re-gapped the coil, and the spark changed from a clear white to a blue spark, after that i sprayed some gas in the carb and she fired!
Daveon
New member
Points are a pain in the ars
anderkart
Moderator
Congrats on getting it running there Solomon. My kart has one of the factory race engine models that was based off your engine.
Kenny_McCormic
Kartless....
Failing CDIs are worse.
Kaptain Krunch
Pro Junk Collector
I'd rather spend a little while cleaning points than buying a new coil/CDI/stator.
BriggsTwins
New member
a teccy with points? those are the good ones!!!
haha well too bad it had a tapered shaft! So i had to use it on a generator, now it surges like crazy and does some back firing, so im soaking the carb and bought a new gasket for it between the air pipe. The engine starts real nice. It has tons of compression, after i let it run the compression boosted to 100 psi, and its never been rebuilt! all i did was lap and gap one valve lol.
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