Small Engine Troubleshooting Problems? Ask a Mechanic Now.
Hello, and thank you for choosing Just Answer. My name is***** will be happy to assist you. Have you checked your engine mounting bolts, to see if they are all tight?
What about your blade adapter? Have you checked to see if it have a crack in it. It could be a hairline crack?
Thanks for your reply.
Do you remember ever striking a solid object with your blade, at some point??
If all of your mounting bolts are good and tight, and you experience vibrations, when your blade is not engaged, this leads me to believe your crankshaft could be slightly bent.
Can you get the model numbers from your frame for me?
I would like to see what all is attached to your crankshaft ...
No problem. I wonder if there is any play in your drive pulley?
I have another suggestion ...
Checking the pulley was just another thought. At the top and bottom of your engine, where your crankshaft comes out, check for excessive play in this area.
Engine Diagram - Click Here
Your engine is not equipped with an internal synchro- balancer ...