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Honda Rubicon 500 - starting running issues

Posted on 4/7/24 at 2:06 pm
Posted by hubreb
Member since Nov 2008
1851 posts
Posted on 4/7/24 at 2:06 pm
have a rubicon that has been put up for a few months, last week it was driven a few times and ran fine. a few hours after the last ride it wouldn't crank at all. I figured it was spark plug...so today changed spark plug, oil and air filter. wouldn't start at first but a few minutes later it cranked right up, road it around for 15 minutes and then just let it idle for a half hour. turned it off and let it sit for 15 minutes, went to start it again and it cranked up but turned off after about 10 seconds. have sprayed starter and ran it hard for a few seconds and then it continues to sputter out...any ideas on the issue? i'm thinking maybe bad gas
Posted by Goldensammy
Cypress, TX
Member since Jun 2016
765 posts
Posted on 4/7/24 at 3:17 pm to
I'd check the battery. A week battery can cause similar issues. No guarantee but that is an easy, quick check. Depending on age of gas, I'd drain it completely and start fresh. Make sure you getting a good steady flow from the petcock while draining. Next thing I would do is pull the carb, remove bowl, remove jets. Clean jets, reassemble, fresh gas, crank it up.
Posted by X123F45
Member since Apr 2015
27483 posts
Posted on 4/7/24 at 4:24 pm to
You didn't state the year.

If fuel injected honda:
1) has your air filter disintegrated into the motor
2) is your spark plug the color of wesley snipes
3) does your gas smell like gas or smell like homeless wine mixed with piss
4) is your battery holding a charge
5) does your fuel pump click on when the key turns on
6) fuel injector
7) idle air control valve
8) fuel pump

Fixed.
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