[Gary in NJ]

The Guess What Happened Game:

Cutting the lawn and everything is normal. Suddenly the RPM's begin to rise (I'm already at WOT) and when I cut the throttle to idle the RPM 's continue to rise. I throttle down using the choke and come to a rest under a tree (because I know I'm gonna have to fix this).

Guess what happened.

 

[Diesel332]

Booooom!

 

[davidg]

sounds like the something governor broke?

 

[SonnyT]

sounds like the something governor broke?

:ditto: or the throttle linkage broke.

 

[mowergene]

The weight fell off the governer inside the engine.

 

[badboy1950]

throttle plate come loose ?
Dan

 

[Gary in NJ]

All good guesses, but no. Start thinking abstractly.

 

[bcuster]

Nitrous oxide switch stuck... :sidelaugh

 

[JRC IOWA]

I give up :dunno::dunno::dunno:

 

[merlin5577]

The carburetor broke in half?

 

[Whirly]

u hit the switch that switched the gas tank over to the MOONSHINE tank

 

[TheSaturnV]

Runaway propeller.

 

[Elbowsdeep]

It was able to draw air somewhere head gasket?? Intake gasket ??? Although the moonshine theory sounds good to me ... Only thing is my shine tank is always empty;(


Sent from the MTF Free App

 

[CHEVY&SEARS]

The turbo's wastegate stuck closed causing a horrific engine explosion!

 

[Pocketraisins]

A mouse got sucked into the AF causing a lean mix?:sidelaugh

 

[Kbeitz]

Drive Pulley eat throttle cable..

 

[LouMG]

Ran out of gas

 

[Gary in NJ]

I too suspected that the problem was the governor. So I removed the air cleaner and began cleaning the linkage with carb spray. Sure enough, the linkage movement was restricted. After playing with it for a few minutes I realized that the linkage movement was restricted on the carb side. Not what I suspected.

So I decided to remove the carb. I removed the two bolts to remove the air cleaner plate. Wait...two bolts....there's supposed to be three bolts. Where did the third bolt go?

I took a look inside the carb but didn't see it...at first. Then I moved the linkage arm while looking at the throttle plate and that's where I found the missing bolt...under the throttle plate. It was wedged in there pretty good. I got it out with a magnetic screw chaser.

I'm glad (lucky) that it didn't find it's way past the manifold and into a intake valve.

Thanks for playing. Hopefully we wont have to play this game for a long time.

 

[mowergene]

Perhaps a twig jammed the throttle?????

 

[CHEVY&SEARS]

That could have been nasty. Mangled valve, maybe a hole in a piston, scarring, ouch. Good thing you caught it!