What was the engine limit for Polaris in 1969?
The limit was set at 800cc entering the 1969 race season. The majority of engine suppliers at the time were primarily European (Hirth, JLO, Sachs, Kohler and Rotax). That would change for the 1970 season when Polaris introduced their “Star” engine built exclusively for Polaris by Fuji Heavy Industries (Subaru).
What kind of engine does Polaris sled have?
Polaris indy trail Discussion in ‘ The Garage ‘ started by dougfromindy, Dec 26, 2010 . Nice Sled, 488 fan cooled, always has started up, seafoam in gas.
When did Polaris return to 3 cylinder engine?
Polaris returned to their three cylinder roots in ‘77. The triple 440 with the shorter stroke could be spun at the higher rpms and combined with liquid cooling would make them competitive again in terms of power. The Polaris engine template for the next 25 years was born that year.
Can a 488 fan work on a snowmobile?
My son’s ’91 488 fan Indy Trail finally died for the last time (the piston blew apart and scattered aluminum throughout the crankcase). I recently purchased a 488 motor from a seller who claimed that it ran fine when it was removed.
What kind of engine did the Fuji 488 have?
The 488’s success was inextricably tied to an Indy chassis free of rolling friction, built out of aluminum (including the bulkhead) and had a P-series clutching duo transferring power that was the envy of the biz at that time. For sure a much-loved engine that’s definitely missed.
What kind of motor does a 91 Polaris have?
A question for the anyone who knows the older Polaris engines. My son’s ’91 488 fan Indy Trail finally died for the last time (the piston blew apart and scattered aluminum throughout the crankcase). I recently purchased a 488 motor from a seller who claimed that it ran fine when it was removed.
Is the 488 fan compatible with the 433 fan?
The electrical harness on the 433 is a two wire (yellow and brown). When inspecting the 488 harness it would appear that the brown and yellow/red wires are connected together so I thought it would not be a big deal to just use the yellow and brown wires.