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Trials Intake/Carburetion - 2 stroke Jetting, Reeds, Air Filters, etc.


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  #1  
Old 01-29-2017, 01:13 PM
funmachines funmachines is offline
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Default Strange issue with running lean

I've been trying to solve an issue with my 97 JTX 270 and can't seem to pinpoint it. It runs borderline OK when I just start it and then gets very lean and it's not the carb - I've rebuilt it and it is clean, new float valve, etc. I also replaced the crank seal behind the stator and put in new reeds. It seems to me that there is either some other air leak I need to find or I have a problem with my gas flow from the tank. I'll take off the tank and check that but I don't think that is it as I get plenty of flow out the fuel hose and have replaced the filter I have in line.

Any ideas? Should I seal up the motor and look for leaks?

Thanks


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Old 01-30-2017, 07:45 PM
SwampGasser SwampGasser is offline
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check intake rubber for cracks
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Old 01-31-2017, 10:09 AM
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cbutler cbutler is online now
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The carb has a filter on it at the fuel inlet have you cleaned it?
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Old 02-03-2017, 01:53 PM
funmachines funmachines is offline
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Thanks for suggestions. I've cleaned and rebuilt the carb completely but did not look at the carb boot closely - I'll check that tomorrow. If that doesn't locate an issue I'll try to pressure and vacuum test the motor.
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Old 02-03-2017, 08:09 PM
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Jim Snell would be more than happy to help you he is the former importer for gas gas you can contact him at trialspartsusa.com
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