91ac Nib
 

Dave,

Today I swapped from a Saito 100 NIB to a 91AC NIB but missing manual with my LHS.

Where if possible can I download a manual from the web?

After reading a bit tonight, it seems I traded for an engine that is no longer manufactured by YS. I am hopefull that it was a good trade. I really had a lot of problems with the 100 breaking rods and seizing rods on the crank pin.

Even though Horizon took very good care of me as a customer I no longer had confidence in the Saito.

I also would appreciate any history of the 91 AC while it was being manufactured and a heads up on any temperamental characteristics it may have had.

Best regards,

David

91ac Nib
 

David

You made a good deal YS engines if treated right will last a long time. YS engines are all I own.

Ron

91ac Nib
 

Your best bet is to send the engine to our service dept. for updating. It is better to do it before it's been run.

Here's the address:

YS Service
1295 Industrial Court
Gardnerville, NV 89410

Phone 775 782 4562

Be sure to include your daytime phone number.

Thank You.