How much vibration on a 716H is normal?

[jlasater 191]

I'm beginning to wonder about the Kohler in my 716H. With it throttled up to grass cutting RPM's, the floorboards vibrate enough to make my feet go numb after a while. Is that normal? Unfortunately I really don't have a small engine repair shop around here that I'd trust to tell me the shape the engine is in, but before I adjusted the carb a bit, opening the throttle quickly from idle would elicit a sharp bang from the engine, a metallic kind of sound. I'm starting to wonder if it really did have a shortblock installed before I bought it, or not. I did notice that the throttle shaft in the carburetor is totally worn out, probably to the tune of 1/8" slop in the shaft with the throttle plate on it. I could fabricate new bronze bushings, but does anyone know if there's a rebuild kit for the carb on a Kohler K341S that includes new bushings?[A href='http://www.wheatfarm.com']http://www.wheatfarm.com[/a]

[dlcentral 1]

Yes on throttle shaft,there is a rebush kit from Kohler or Sten's. Check driveline,bevel gear box eng mount bolts for loosness.

[SmilinSam 3,585]

Like DLC said, check the driveline. Vibration will be bad if the bearings are getting bad in the bevel gear box. Check there for play. It should be tight with no side to side or up and down movement. Sam

[dlcentral 1]

Just to expand on what DLC and Sam already advised, if in doubt, remove driveshaft to isolate engine and compare vibration. If the BGB bearings are bad, and you don't fix it now, you'll be spending hundreds of $$$ shortly.

[JCS 0]

My dealer told me no rebushing kit was available for KOHLER carb like B & S carb and I had to but new KOHLER carb to fix my loose throttle shaft. Can you post kit number? and tell if carb casting needs drilled or hwat?

[Mike 0]

Or, you can buy a good used carb from DLC like I did. Mike DiSanto

[JordB110 0]

I don't know about vibration, but on an old JD I had my feet would get so hot I had to rest them on the hood or let it cool down. Several times the floorboards/footrests got so hot it actually started MELTING the sole of my work boot/shoe! Jordan

[jlasater 191]

Thanks for the info. I'll see if I can disconnect the drive shaft and see if the engine is smooth on it's own. If I end up making a couple of bronze bushings, I'll post a photo when I'm done. Should be easy to do.[A href='http://www.wheatfarm.com']http://www.wheatfarm.com[/a]