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Did it actually sound faster? Could it just be an indicating problem?
is the clamp on the shaft tight where it goes into the case ?
Was the choke ever so slightly "on"?
To make a short story long........ I ran the LT-40 all day Friday cutting with no problems. I set up Saturday at a customers place and cut about 5 hours and noticed the engine RPMs were higher than normal. (Yes, I added the tach recommended by VA Sawyer in the "Saw Mill Mods" post) Normal RPM for the Kohler 25 HP is around 1300 at idle and 3750 at full throttle. However, idle RPMs were at 2200 and when I engaged the blade they went up to just over 4100 RPM. I stopped and checked all the linkage on top of the engine connecting the throttle cable, carburetor and governor. Everything seemed to be OK. Nothing loose or stuck. Shut down and went home.Started back up this morning and everything was fine. I did notice a slight "pulsing" or "surging" of the engine when it was cold. This was the 1st time I've noticed that. After it warmed up the the RPM readings were right where they were supposed to be with no pulsing or surging. Then......along around 2 PM all of the sudden the RPM jumped right back up to 2200 and 4150 again! Still can't find anything wrong.The engine is a 2003 25 HP with 266 hours on it. Any ideas
According to the Kohler service manual it has a flyweight ( centrifigal ) governor, or in some cases they use an electronic governor. Not sure which one Dave has.VA-Sawyer
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