Massimo starts runs about 3 min dies wont start

[SteveD916]

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]

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.

[cliffyk]

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...,

[ccam111]

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

[cliffyk]

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...

[Steve D 916]

Still haven't fixed it

[motojoe]

It appears to me that your stator and the pickup coil has or is going out.  Look on youtube how to check a stator.

[Steve D 916]

Ok...I've been told it could be the stator. Other people tell me the stator doesn't just shut off when hot, it just goes out.

Thank you!

[Zach]

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