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I have a Craftsman YS4500 that when I engage the blades the start spinning slowly and kills the engine.

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  • 30 Answers

Assuming any belt changes were correct..check the path of the belt to make sure it's not pinched in the guides..and with the blades disengaged and the engine off..that one of your blade hubs isn't seized up.its normal to slow the engine during engagement but not stall at medium rpm.

Posted on Jul 29, 2013

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You need to buy a Starter Drive Kit. If you starter has a flat piece on top held on by a retaining ring, it's part # 696541. If you have the older type starter with roll pin holding the drive on, you need part # 696540. You probably have the first one. To install the retaining ring, use a 3/8 socket to tap it into the groove. Dwain

Posted on May 29, 2009

wireguy212
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Posted on Oct 31, 2009

  • 27 Answers

SOURCE: RE: Lawn mower blades will not engage

This sounds like a faulty ground condition, the PTO clutch requires a ground provided by the chassis wiring harness to function and a ground for the ignition switch to kill fire to the coils. The other components work as they should because the voltage regulator, fuel shutoff solenoid and starting interlock system have their own grounds. The ignition switch in these mowers is a large round plastic switch not capable of grounding itself, it should have a black wire leading from the terminal marked "G" on the backside of the switch.

to diagnose a faulty ground you'll need a basic 12V test lamp:

Unplug the switch and and install a the test light clip on the positive terminal of the battery, probe the ground wire in the unplugged harness that corresponds with the "G" terminal only. If the ground is good the lamp in the test light will illuminate brightly, if poor or faulty the lamp will not light or be noticeably dim.

Further verification of a faulty ground or failed PTO switch can be tested at the PTO Clutch harness, turn the key on, engine NOT running, and pull the PTO Switch to the engage position, with the test light clipped onto the Negative Battery terminal or chassis, back probe the connected PTO clutch terminals. If the PTO switch is good and the ground is good then Only one terminal will illuminate the lamp, if both wires illuminate the lamp then the ground is faulty, if no lamp illumination then a loss of power is suspected, check the terminals on the PTO switch and Ignition switch for power.

Typical Ground termination locations are on the frame near the rear of the tractor frame, above the transmission, in the steering column area and near the solenoid, check for a loose or corroded eyelet terminal, broken wire, or a missing fastener in these areas.

Posted on Jul 04, 2010

  • 579 Answers

SOURCE: swisher 44" mower starts and runs but engine bogs

The engine in this machine seems to be powerful. If you can remove the belt from the pulley that drives the blade. Try turning the pulley buy hand. If it turns tight or not at all this is your problem. The unit that is the pulley to blade assembly is seized or ready to seize. Sometimes they are designed to be taken apart and repaired, and sometimes they are not. Did you check for a grease fitting within the pulley to blade unit?
I would like to hear how this works out for you. Best of luck.

Posted on Jun 14, 2011

BAMOUT
  • 2478 Answers

SOURCE: cub cadet 1040 blades spinning when pto isnt engaged

Sounds like you forget a spring or the routing belts are
wrong.

Posted on Sep 30, 2012

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1 Answer

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hi there talane

sounds like you have a safety switch problem

try disconnecting seat switch and retry if works could be wire grounding some where or faulty switch then try fitting a jump wire to seat switch wire connector then retry then check blade engagement switch may be playing up or a nuetral switch playing up but more likely a seat switch

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take look

hope it helps

cheers pauly46

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1 Answer

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