Secondary stuck open

Dec 20, 2016
152
34
28
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Mapleton Utah
2003 mountain cat 600 electric start efi after everything gets warmed up pulling a sled with dogs in it. my secondary gets stuck open replaced the rollers brass bushing and a new spring and it still does it.
 

jim

Well-known member
Nov 26, 2007
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Boise
Is the primary holding the belt tight and holding the secondary open? Or do you remove the belt and it is still stuck open? If it just holds open by itself, it is the bushing.
 

jim

Well-known member
Nov 26, 2007
912
548
93
Boise
The secondary goes in when you pull the belt up.
This might be a primary issue...because if the secondary goes in when you pull the belt up, it is able to create tension. I wonder if the primary is sticking open but snaps shut when you basically come to a stop.

If it were me, I'd pull the belt off, pull the springs out of both the primary and secondary and actuate them in and out to check for any binding or freeplay. Something between the 2 is binding up and likely very worn.
 

jim

Well-known member
Nov 26, 2007
912
548
93
Boise
If it was frozen up with significant misalignment, maybe.

But points more to me that there is a lot of corrosion and your main bushings in the secondary are likely in need of cleaning or replacement.
 
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