Running a mower at full throttle ?

[Joe1]

"Full throtle" is really full Governed Speed. If you do not remove or modify the governor, then the engine is running at its optimum rpm for cooling and power output but not at the maximum rpm the engine could produce without a governor.

Joe

 

[slammer]

Yep. About 3500 rpm.

Slam

 

[KubotaBling]

yah full throttle rpm's can go as high as 5K from our test subjects /forums/images/graemlins/smile.gif 25hp v twin's.. not sure how long that'd last but they go that high.. i know on my 17hp vtwin kohler in my ford lgt it lasted about 3 months before it throwed the driveshaft u-joint..

 

[Dave___in___CT]

Hi...


...also.. check & keep the engine oil changed when it's recommended...


Dave...

 

[slowrev]

Bird,
The Lawnboy is 2 cycle right ? I believe they won't have the same issues as 4 cycle engines can with a "hard" shutdown.

 

[Bird]

</font><font color="blue" class="small">( The Lawnboy is 2 cycle right ? )</font>

In years past, when OMC (Outboard Marine Corp) owned Lawnboy, they were 2-cycle, but now they're made both ways. The one I'm using is a Tecumseh 4-cycle engine.

 

[ThistleKop]

When CPSC got in the business of regulating consumer lawn and garden equipment, a blade tip speed of 19,000fpm was established as the standard to control thrown objects. At that time the engine mfgrs. had to reduce the governed speed on their engines to comply. At the same time came the addition of guards, etc. In recent yrs. many other stds. have been added, eg., blade brakes, etc. This all resulted in safer but less user-friendly products and in many cases a product that does not perform its intended purpose as well.

TK

 

[KubotaBling]

yah some saftey outfit SAE or something JD has there mowers meet blades have to stop within 5 seconds and engine noise etc..