Quote:
Originally Posted by RLause
Hi Jon, I'll try to explain the situation better. It is a Walbro with adj. idle jet, idle speed is set at about 1200 rpm. Start the engine, throttle up to 3000 rpm, back the throttle down and about 2000 rpm is where the throttle stops unless you take your finger and push it against the stop screw. I disconnected the governor linkage, held my finger on the throttle keeping it closed and started the engine. I can move the throttle and it stays where I put it. It feels like it has Locktite in the bearing. Stop the engine and it free. The manifold gets very cold when it is running. In my 65 years of working on engines, I haven't seen anything like it.
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So, if the engine is off, the throttle moves freely from idle to WOT?
3000 RPM is too low for high idle no load. Should be at least 3600. I prefer to see 3600 with a deck on (engine under slight load). Ok, that's a lie, I set my engines to 3800, but whatever.
1200 is about right for low idle.
Normal for an air intake to get cold.... nothing new there.
If the throttle plate is free with the engine off, sounds to me like you need to adjust the governor.