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Massimo starts runs about 3 min dies wont start

SteveD916

By SteveD916
in Massimo UTV SxS Forum

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SteveD916 Newbie

SteveD916

Posted
Posted

2016 Msu700 starts runs a coupl min/warms up  dies and wont re-start. After about 45 mins it will start again. This just happened one day while riding.  I changed the fuel pump but that didn't work.  Any suggestions?

Travis Grand Master

Travis

Posted
Posted

sometimes that can be a sign of an ignition system part failing.. i'm not up to speed on the Massimo ignition systems as to if there magneto and flywheel fired, or CDI off of battery.

had a similar issue with a car awhile back, run and get warm and shutoff, wouldn't restart for awhile until cool. turned out to be the ignition coil.

after it dies i would check for spark, either by removing the spark plug and reinstalling the wire and grounding the spark plug against the engine and looking for spark, or by removing the plug and spraying carb/parts cleaner or starting fluid down the plug hole or intake.

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cliffyk Rising Star

cliffyk

Posted
Posted

In the old days my first thought would have been a vacuum-lock in the fuel tank, a common situation that occurred--primarily with gravity feed fuel systems--when the fuel tank was full or nearly full; and was due to a clogged vent (often in the cap) that could not pass air to relieve the vacuum created as fuel was consumed. i don't know if the tanks on contemporary EFI fuel systems are susceptible to this, but I'd sill check to see:

Next time the engine stalls crack the fuel cap and listen for a rush of air. Then try to start the motor, if it starts you know the problem and where to look for solutions--if not you're no worse off...,

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  • 4 weeks later...
cliffyk Rising Star

cliffyk

Posted
Posted
10 hours ago, ccam111 said:

I am having the same issue on a Massimo 2016 msu800. Did you figure out the issue?

Try loosening the fuel cap for 10-15 seconds then re-try starting it--might not work but it's worth a try...

  • 1 year later...
  • 2 months later...
Zach Newbie

Zach

Posted
Posted

I have a Massimo 800 2015 it will run for awhile but if you get it up over 30mph it will bog down and die and won't start for about 45 mins. Has anyone figured anything out 

 

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