90 Polaris Indy classic bogging

90 Polaris Indy classic bogging

Post by A How » Sun, 13 Feb 2000 04:00:00


I have a 90 Polaris Indy Classic.  It went to the dealer for the usuall pre
season service.  I put 47 miles on it, and it ran great, except for the last
mile.  It lost power, and started to bog.  I shut it down, and then it
started hard.  I changed the plugs, which looked ok, and that didn't work.
After riding around a field a few times I checked the plugs and decided the
right cylinder wasn't firing.  I then took it back to the dealer and they
decided it needed a new CDI box.  Well, I have installed the new box, and it
runs a little better, but still not great.  The top end is not there, and it
still bogs bad up hill.  The cylinder now fires, although I'm not sure it
does at all times. I have also put dry gas in the fuel to help with any
possible water problems.  Any ideas what to try next?  I hate to bring it
back to the dealer, but may have to.  Thanks.
 
 
 

90 Polaris Indy classic bogging

Post by at » Mon, 14 Feb 2000 04:00:00

Quote:

> I have a 90 Polaris Indy Classic.  It went to the dealer for the usuall pre
> season service.  I put 47 miles on it, and it ran great, except for the last
> mile.  It lost power, and started to bog.  I shut it down, and then it
> started hard.  I changed the plugs, which looked ok, and that didn't work.
> After riding around a field a few times I checked the plugs and decided the
> right cylinder wasn't firing.  I then took it back to the dealer and they
> decided it needed a new CDI box.  Well, I have installed the new box, and it
> runs a little better, but still not great.  The top end is not there, and it
> still bogs bad up hill.  The cylinder now fires, although I'm not sure it
> does at all times. I have also put dry gas in the fuel to help with any
> possible water problems.  Any ideas what to try next?  I hate to bring it
> back to the dealer, but may have to.  Thanks.

Older Polaris sleds had a problem with the ignition key switch (not on
some EFI models, and I am not sure about electric start models. If the
switch only has two wires, it is a probable suspect). After it gets
older, and it gets a little moisture inside it, it develops a partial
(high resistance) short, which affects the CDI box. The typical
symptoms are exactly what you describe (although I have experienced
different symptoms caused by the switch). Try disconnecting the wires
from the ignition switch. If that helps, either leave the wires
disconnected, or replace the switch with one from the new sleds. Also,
get your money back for the CDI unit. The dealer should have figured
out the switch problem (if that is what it is).

Hope this helps...
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From the PC of Doug Bissett
doug.bissett at attglobal.net

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