Join Date: Jan 2017
Location: Lawrenceville NJ
10hp Tecumseh problem w gas lever only 1 speed
In September I bought a used Craftsman 29" 10hp 536.886332 engine 143.961001 HM100.
It was sitting for years and ran very rough and only at full choke. After disassembling the carb, it was about as bad as could be.
I completely rebuilt the carb, dip tank, ultrasonic cleaner, rebuild kit with needles, replaced both Welch plugs, used torch tip cleaners.
Yesterday I started it for the first time since September when I bought it. The engine runs so smooth now but only at one speed. I don't remember if the throttle worked or not when I bought, I was more interested keeping the engine running and determining if there was value buying it as it needed 2 chute collars and the bracket and both wheels were rusted on but other indicators showed little use, no scrapper bar or skid shoes wear. I paid $185.
But now it only runs at one speed no matter what position the throttle level is at. I attached 2 pics and a video of running. The high speed adjusting screw is not touching the stop. The spring inside appears to be working. Can this throttle lever be taken apart and something moved, then why should it? Is it fixable or I buy a new lever? When the carb was off the governor seemed to be adjusted correctly, and now also.
And the problem is?