Outdoor Power Equipment (Lawn Mowers, Snow Blowers, Chain Saws and more) Discussions

I just purchased a Yamaha YS624 the other day, it ran just fine when I bought it, then I went to use it the other day, and the pull start was frozen, does anyone have any ideas on what could be wrong, does this mean my engine is frozen? Does anyone have any idea what kind of engines Yamaha used in their snowblowers? If the engine is ruined, I would shure like to pick up a new engine for it.

Thanks for listening

If you remove the belt cover, this will expose the rear of the crankshaft. See if you can spin the pulley attached to the crankshaft & if it does, then the engine is ok. Next step would be to remove the flywheel shroud & see if the recoil mechanism is jammed. I can't go much further with this, as I have never worked on one personally...

HTH - Marty

Lespaul wrote:

Hi,

 I cannot thank those people enough who gave me some great advice on my Yamaha snowblower. Well guess what happen after we had a few days of temperatures that went over 50 degrees? The engine turns over just fine again and the snowblower runs great again. I would really like to know why the cold weather would freeze up the engine so it would not crank over, could it be because there could have been water in the gas, and the cylinder froze up temporarily from that? Any thoughts on this would be appreciated.

       Thanks again,

            Les Paul