Right on my 1994 had over 6,000 miles in three years no problems, other guy put several more on with no issues (except exhaust gasket common issue very messy same with Ultras), heard about some with 14,000 miles it was the Sask. stock drag champ in 1994. 38 will add maybe 2-4 hp but you will lose lots of MPG, stock 34 get 16 mpg riding WFO it is great and an easy starter jut pull the rope six inches.I've got over 8000 miles on It and 125psi compression and not one problem. And if the sled is set up right there shouldn't be many problems at all. I've herd of some of these sleds with over 12000 miles with nothing being done to the engine except yearly maintenance.
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