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Garden Tractor speeds up while Mowing

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soapteach
Join Date: Jul 2015
Posts: 3 Peachtree Corners, GA
TractorPoint Premium Member -- 5 Tractors = Very Frequent Poster

2015-07-12          193103

I have a Scotts S2546 with a 25 HP engine. As I was cutting the engine started to rev up to max RPM's. I can slow it down a little by using the throttle but it still is running very fast. Any suggestions? Thanks,

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Garden Tractor speeds up while Mowing

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DennisCTB
Join Date: Nov 1998
Posts: 2707 NorthWest NJ
TractorPoint Premium Member -- 5 Tractors = Very Frequent Poster  View my Photos  Pics

2015-07-14          193111

Are you operating the mower with the throttle in the FAST position before you experience an even higher RPM? ....

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Garden Tractor speeds up while Mowing

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soapteach
Join Date: Jul 2015
Posts: 3 Peachtree Corners, GA
TractorPoint Premium Member -- 5 Tractors = Very Frequent Poster

2015-07-16          193123

Dennis, Thank you for the reply. Yes, it was full throttle with blades running when it reved up to the higher RPM's. ....

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Garden Tractor speeds up while Mowing

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ford2000
Join Date: Dec 2014
Posts: 17
TractorPoint Premium Member -- 5 Tractors = Very Frequent Poster

2015-07-20          193156

Could be the governor kicking the throttle up to compensate for the engine slowing because of hitting a difficult section (thick grass, or too tall).

Or a slipping belt or clutch due to thick grass resulting in slippage and engine speed increase... ....

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