Quantcast
Jump to content

2017 Massimo msu500 efi no start


Recommended Posts

  • 2 weeks later...
  • 2 months later...
  • 5 weeks later...
  • 1 month later...

did you check to make sure the cylinder head was not warped? if it was, then the head gasket will never seal correctly. Also keep in mind on the smoke, it will smoke for a bit if any coolant gets into the exhaust pipe, it takes a little bit to burn it out.  If you have the head off, check the surface to see if its 100% flat. any warping will cause a poor seal. Also check the cylinder to ensure its not warped as well. \

Link to comment
Share on other sites

  • 2 years later...
  • 2 weeks later...
  • 8 months later...
  • Alex changed the title to 2017 Massimo msu500 efi no start

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

  • Similar Topics

    • By weasel
      starts up you have keep rpms up for 5 minutes till it warms up then runs fine. But if it stalls wont start unless you unplug fuel pump and hold it to the floor till it starts then plug pump back in and run it till it warms up then it is fine all day.
    • By Round
      Bought a Massimo 500 last night. Stopped and filled it up on the way home and I put the wrong gas in it. Is there a drain plug on the bottom of the tank that I can get to or will I have to siphon it out?
    • By amiracle40995
      I’m getting a 700-7 every startup. I’m having to change the plug every 100 miles on 93 octane gas. I got a lower numbered plug that is supposed to burn hotter. I’m wondering why that comes up every time I start it and if it’s related? I included a picture of the code or whatever it is. I haven’t seen the code in the owners manual or the hisun shop manual I have. 

    • By Coleman400
      Hey all. I need to change my plug in my ut400 and I remember seeing people in here saying to get a certain one that was better than what it came with. What was it?
      Also I need to do an oil change. Are the tractor supply oil change kits ok to use?
       
      Any help here is appreciated!
    • By FloridaMan
      I have a 2012 Massimo MSU 500 that died. I found that it didn't have spark and the fuel pump wouldn't run. Checked all fuses and none were blown.
      Went through and replaced the ignition coil, HT lead and spark plug. Still no spark.
      Thought it could be the fuse/relay box because I didnt' know much about the machine at that point so I replaced it. No spark.
      Then I replaced the ECM just because I was running out of ideas. No spark.
      I removed the 9 pin connector and hardwired it making sure that they were no wires got swapped. Still no spark.
      Then I replaced the wiring hardness. In doing so, I replaced the 9 pin connector with new ones. I made sure all wires were matched up between the engine harness side and the other harness assembly. Still no spark.
      I have no other ideas what to do. My fuel pump doesn't kick on and I have no spark. I have 12V on the fuel pump, ignition coil and fuel injector, but no ground from the ECM control.  I unplugged the fuel injector and waited for a diagnostic code but nothing ever came in. It makes me think that the ECM isn't powering up. I've checked for 12V on pins 18 (purple wire) and 15 (white and black wire). I also checked for ground on pin 2 (black wire). All are good.
      I am out of options here and I have no idea what else it could be. I have all connections redone and are coated with dielectric grease. I've checked all easy things like fuses and making sure I have 12V in the right placed. I would appreciate any help.
×
×
  • Create New...