Swampdonkey 3 Report post Posted June 26 2017 msu500 efi. Has spark and fuel. Valves are within clearances. Leave key on I get a 118 code. Ect sensor? Could this keep it from starting Old plug was black Share this post Link to post Share on other sites
Swampdonkey 3 Report post Posted June 26 Got it to start by feathering the throttle . Revs fine dies at idle. Hard to restart probably foiled plug again 1 Share this post Link to post Share on other sites
Swampdonkey 3 Report post Posted June 27 Looks like blown head gasket. Temp light came on and started shooting water out exhaust . Should be under warranty only 25 hrs on it 1 Share this post Link to post Share on other sites
Swampdonkey 3 Report post Posted July 11 Just heard back from dealer, says Massimo won't cover warranty due to mud or water in side. Where should I look to buy parts Share this post Link to post Share on other sites
Travis 57 Report post Posted July 11 http://sportsmancountry.com/Massimo_Parts/MSU_500/ Share this post Link to post Share on other sites
strike250 35 Report post Posted October 6 check with motorcycle doctor, better pricing and keeps lots in stock. 2 Share this post Link to post Share on other sites
Swampdonkey 3 Report post Posted October 9 Ordered from motorcycle doctor. Put new gaskets in everything back together and fired right up. But saw bubbles between head and hug. Gonna take back apart and try resurfacing Share this post Link to post Share on other sites
strike250 35 Report post Posted October 10 Call me if you have questions or problems. Numbers on my website warriorsoffroad.com Share this post Link to post Share on other sites
