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post #11 of 13 (permalink) Old 05-19-2019, 02:05 PM Thread Starter
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I can definitely tell a difference in the fuel line so I don't believe that's the issue so I'm back on the carb.. I soaked it in carb cleaner, saw daylight through the jets, and slapped it back in and still didnt get it to fire. Is there anyway I can get an OEM carb without paying $450? Or maybe somewhere that I can try to slap an OEM carb to see if that's the issue?
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post #12 of 13 (permalink) Old 05-20-2019, 06:27 AM
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Nope - we are back to compression - how many PSI does the engine have when cranking over with the throttle held wide open?

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post #13 of 13 (permalink) Old 06-17-2019, 03:11 PM
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Originally Posted by latebird View Post
Nope - we are back to compression - how many PSI does the engine have when cranking over with the throttle held wide open?
Im in a similar boat. Ive got a 2005 polaris ATP 500ho and seems to have a weak spark to me. New cheap carb, new fuel pump, Measured 500v from the cdi out, tried a different stator / pickup with the same results (185 ohms on trigger and 0.3 on stator), different coil pack (0.2 on primary and 12k on secondary, adjusted valves to 0.006, compression is 50 on stone cold and 70 with a little oil. Swapped ECM, Is it just the low compression numbers? Factory service says 50 - 100 psi. The kicker is I do not have the original cluster but was told it ran without it but no 4x4. It has been sitting for around 4 years. Starter fluid doesnt seem to have any impact.

Thanks for any help and sorry if I hijacked. Didnt see him responding and really need some expert advice.
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