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04-06-2012 10:43 PM  9 years ago
Topic Vote0Post 1
400 flyer

rrApprentice

maryland, usa

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ys 91st engine??
is this a good engine?? any probloms with them?? would you recomend one?? thanks.
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04-06-2012 11:17 PM  9 years ago
Jerry K

rrKey Veteran

Houston Area

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The 91 ST I think is the older(first)version then the 91 SR Long stroke came out which is still a current version.
A lot of people like them because they do not use muffler pressure in the tank.
I have one for sale
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04-12-2012 03:44 PM  9 years ago
jester4

rrKey Veteran

Brampton, Ontario

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It was a good engine for me. Reliable and smooth. I still have one that needs rebuild. I can't put myself to get rid of it
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04-12-2012 04:50 PM  9 years ago
ticedoff8

rrKey Veteran

Morgan Hill, CA. USA

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Just FYI:
http://www.keimod.com/shop/product_...products_id=100
Discontinued engine, but parts are still available.

If you trust the seller, and the motor has good compression, and the price seems okay; it isn't bad.
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