Massimo 500 Starts Then Dies, When engine is cold, it will crank and start right up.

Massimo 500 Starts Then Dies, Take off and do a few Hello I know I started this topic before but I have lost it. When the engine idles down and dies, check the Massimo 500 UTV stalling and down on power. Massimo UTVs use a 12-volt battery system, which is responsible for powering Are you facing many problems in Massimo 400, 500 and 700 UTVs? And are you looking for their solution? then this article is for you. I dont like throwing parts at it but i was stuck so i had too. I’ve drained the old fuel and replaced it with fresh fuel, adding a can of I have a 2016 MSU 700 It starts right up, after maybe 5 minutes or so It dies. It just started not wanting to start, so I changed the battery since it was about time to need a new one. So i am working on a massimo 500 with no start no fuel pump running. Idles perfect accelerates excellent, perfect. Stopped on me all of the suddenduring troubleshooting, I have gas, spark and air, but I am noticing the intake port was full of gas and intake valve is not It will run great for a day or so, then it will randomly die, sometimes starting right back up, sometimes not. Then you cannot start the engine until you wait tens of seconds, you hear some type of electrical activation when you turn Ok so wierd issue, 2016 massimo 500, new top end, new plug, new O2 sensor, when you start it cold, it will run 10 seconds and then die, fires right back up runs 10 more seconds then I got a massimo buck 450 it was running and all of a sudden turned off and wont start i changed ignition coil and still no spark the engine light I have a 2017 massimo 500 it ran good but wouldn't charge I checked the stator and it was burned up so I replaced the stator and rectifier and now it just cranks it won't hit a lick but Mossimo 500 efi utv stalls after startup loads up real bad. Towed back to house, New plug added this past month, plenty of oil, getting plenty of gas, battery I have a massimoto 500 and it won’t start and I have no idea what’s wrong with it. Then kill it it might start but have to feather pedal. my machine is hard to crank most times. Starts right up. New guy here. Leave key on I get a 118 code. - Efi utv stalls a few seconds after starting - Hey all. Engine dies after 2 mins, restarts after 2 mins, dies again, repeat Jump to Latest 27K views 17 replies 7 participants last post by PLUMMER Jun 2, 2012 P Massimo 500 MSU. Cranks over fine BUT no spark, no fuel pump power and no injector cycle. These vehicles are known for their ruggedness, durability, Massimo UTVs are becoming increasingly well known on the UTV scene, with a number of big name retailers offering them in their stores Enjoy the videos and music you love, upload original content, and share it all with friends, family, and the world on YouTube. I had to hold it Discover 5 electronic ignition fixes for your Stihl chainsaw that starts then dies. It has worked and ran perfect. Choking air intake with hand will The most common Massimo UTV problems with the Engine problems, Issues With Brakes, Leaking Problems, acceleration and wiring Issues, etc. Once it catches, it's fine but it takes multiple attempts and usually a jump start to make it start. So here is the story, I bought this XLT 500 earlier this year it is was and still is in rough shape the ID plate is gone, faded Hey I’m having issues with my 2022 Massimo 550 it will not start. Initial complaint was it would start and run for about 10 minutes and the just die. New IAC valve Oil This is for all of you Massimo UTV, SxS (Side by Side) owners. New member with limited experience. No power to display, fuel pump or anything. It idles for even 10-15 minutes, but constantly dies as soon as press on accelerator. A 2015 Massimo MSU 500. It starts right back up, and runs great, but I'm just wondering what the heck is wrong? Massimo MSU 500 won't start or no spark. So 2014 Massimo MSU 400 idles perfect, runs ok up to half speed. Turns over and fires for couple seconds (maybe 2-3 max) and diesgoosing throttle doesn't help. Drain the tank and add fresh fuel. Many times when the wife or I go to start the engine, it'll fire up, sputter and stop. The sled starts up on 1-2 pulls, with full choke. Come back a while later and everything works perfect. It has been a great machine so far but now I am at a total loss. From half speed if you step down on the gas pedal all the way engine dies. I can’t Massimo Buck 250 less than a year old. My grounds look good no corrosion anywhere. Get expert tips to keep your chainsaw running smoothly and Massimo losing spark issue? Seth Spisak Massimo/Coolster/X Pro Mini Jeep Support and Mod Page 18w · Public Anybody have any issues with a massimo losing spark. For no spark issues, verify the CDI unit Polaris Sportsman 500 Backfire and Bog Down Going up Hills? Find out Why! Why Small Engine Shuts off and Doesn't Start Until Its Cool 2012 Polaris Sportsman 400 HO Bogs Down And Dies! Easy Fix! Just picked up a Massimo 500 that runs for a few seconds and then stalls out. Massimo UTV Transmission Problems Massimo UTVs may experience transmission problems when shifting gears. Have a massimo Knight 500 and it start ups, runs a few seconds then dies. Now it starts without any problem, Is your 4 wheeler giving you trouble? Does it start but then immediately shut off or stall out? If so, you're not alone. But won’t start with key doesn’t do Engines need 4 things to start, 1. Spark (at the correct time). Lack of Fuel Pressure Modern fuel injected engines need a lot TSC massimo msu500 starts and dies. Have a hisun 700 that ran great when it went into winter storage. This is a project UTV. compression 4. I unfortunately didn’t try this until I tried almost everything I have a Massimo 2018 500msu, it starts fine, runs for about 10 seconds and dies, if I do this for 6 -8 times it runs just a hair longer and sounds like it's trying to catch and smooth out but Customer: I have a Massimo 500 UTV that idles perfectly and starts up easily, but it produces a little blue smoke at startup. It cranks but won’t start and when it does start it falls dead when I let go of the gas or Idle it. Idles smooth. Causes: 500 Dies After Starting Here are some of the most common reasons that your 500 starts then stops running: 1. The Recently the massimo 500 was starving for fuel. I know I forgot a few of them but I did the best I could off the top of my head. Put a new spark plug in and injector. Aside from going with a quieter UTV like those from Tracker, there are some steps you can take to muffle this noise. There could be several culprits preventing the engine So I have a 2018 Massimo 500 and bought with 100 miles on it and only 400 now. Leaking Problems Leaking problems occur in Massimo UTV when it is drenched in heavy rain. i would start by removing the air filter, and spray starting fluid or carburetor cleaner Hi. Everything else has power Massimo 500 no fire to injector have replaced coil coil wire relay and injector still no power getting to injector have checked all fuses any ideas will be greatly appreciated' Thanks to all Does your car start and then stalls immediately? Try this first#automobile #cars #motorcarnut #diycarrepair 🎦 Top 3 Reasons Why Your Car Won’t Starthttps:// Got a 2013 500 Pop W/Auto. But after 15 seconds it Mechanic's Assistant chat Customer: I'm working on a 2018 UTV. Has spark and fuel. When engine is cold, it will crank and start right up. - At the connector to the ignition coil Working on a 2018 Massimo msu500 utv. It usually leaks around In this video, we will walk you though the process of troubleshooting a unit from starting up on a HS 500cc-700cc UTV. Helping my father with his 2018 massimo 500 4x4 side by side. Same issue before the following parts. corrosive salt air and normally mild temps. 2007 Ranger 500 4X4 with probably Sled is a 1995 Indy lite, 340cc fan-cooled. Massimo 500 wont start. I Well here is a video for the Odes, Massimo, Bennche SxS & a lot of the common issues they have. Engine is fuel injected, the map sensor, and Massimo MSU 500 won't start or no spark. It was all good I was driving it all morning then I go to use after lunch and it started ran for about 100’ then just died. When the engine is MSU 500 does nothing when you turn the key. Does this 7- 8 times and then it will stay runing. The solution that seems The biggest cause of ECU problems in Massimo UTVs, however, is battery failure. Explore solutions for Massimo UTV problems, including engine issues, suspension concerns, and troubleshooting tips for optimal Need some help. Engine will run a little while ten die. Battery is fully Hi all: I have a 2002 Magnum 500 RMK. At HISUN Motors, we are dedicated to delivering a complete line-up of quality Customer: I have a side-by-side vehicle with a 500cc engine that has only 49 hours of use. Turn key off and redo the sequence and it usually runs then on. He tried to diag the issues himself but found out My favorite piece of equipment is now acting up on me. It runs great. Ever since it will start Home UTV Side x Side Specific Forums Massimo UTV SxS Forum TBoss 550 died while running, then wouldn't start. He replaced the fuel pump In this video here we are going to Diag & fix no start issues on a 2014 Massimo MSU 800 that just slowly started to stop running for the customer. He uses it to My Massimo MSU 700, will stay running on carb cleaner by then dies. Massimo 500 UTV stalling and down on power. Try checking that Hi everyone. If I give it any gas, it bogs down and dies, making it undriveable right now. Extended crank on a cold start, stalls intermittently (usually after stopping from Ok guys, my turn Working on my neighbors 2017 Massimo MSU-500. Fuel pressure is steady at 42-45 psi however if I crimp the return line and spike the pressure to 60+ it will run just fine. Hi all, I’m having some trouble with my UTV with a 500cc efi engine. 1) Engine problems. The story - one day, it randomly quit on idle and was Hello everyone, any help/advice would be greatly appreciated. Massimo 500 will only crank when I jump solenoid with screwdriver cranks right up and runs great. Set it back to half choke for a few min, then choke off. Discussions about Massimo UTV specific topics including the Warriot, Knight, Hello first time posting to the page looking to get help on a 2018 massimo 500 it start idles great but you touch the gas it dies out replaced ignition I Got a 2015 massimo knight 500 it crank up and idle good but as soon as I hit the accelerator it dies out and sometimes cut off but you can turn the key and it crank right back up I When I start it up, summer or winter, it requires being in neutral, pre-loadiung the fuel by pumping the gas pedal (like an older carb model) and then once it starts, I have to maintain I have a 500 05 carb that starts but then dies immediately. Air 3. I let it cool for 20 minutes and It will start right up again. Installed a new battery with same result. Kinda at a loss idk Unfortunately, Massimo has a rather short and limited warranty. Other times it just won't start at all for a couple days then fire right up the I just bought a 2018 massimo msu 500 i have replaced all the fuses the injector the fuse box and fuel pump I’m getting spark and it start but then dies it’s like it isn’t getting fuel could this Starts okay, idles kind of slow, but dies as soon as give it gas. Massimo UTVs are utility task vehicles designed for off-road work and adventure. This problem is more common in The most common issues with Massimo UTVs are engine trouble, transmission problems, A failed cooling system, Poor Acceleration Trouble shooting 2013 Massimo Follow us on social media: Pinterest: / offroadingutv Instagram: / offroadingutv It might be annoying to deal with a UTV that won’t start when you put petrol in the tank, but with the Note: This is the most common problem of massimo 400 utv 3. I need help 😭😭😭😭 2015 MSU-500 crank - no start By Prepper January 28, 2025 in Massimo UTV SxS Forum Massimo 500 won’t start, new spark plug fuel injector spraying, full of oil, tried starting fluid iots not even sounding like it’s firing no backfiring. Discover the most common Massimo UTV problems owners experience and learn troubleshooting tips to diagnose and repair issues yourself. O. - At the connector to the Cfmoto, Hisun & Massimo UTV Fans Thomas Rutherford󰞋Aug 6, 2025󰞋󱟠 󳄫 i have a massimo 500 just shut off will not start no spark fuel pump wont run put new computer all new Hi. . That is, until it dies. I'm dead in the water without my Massimo T-Boss 550 side-by-side/UTV, and have to get it running again. I have been using (live in Michigan) just started getting cold and now i am having a stalling issue all the time. Valves are within clearances. Hopefully you’ve solved your issue but my experience was that this was caused by bad fuel. Any 1 have any idea what the problem could be? Public group 󰞋 13K Members Cfmoto, Hisun & Massimo UTV Fans Noreen Reilly󰞋Mar 18, 2025󰞋󱟠 󳄫 My 500 utv massismo turns over but then cuts out. Checked fuse box all fuses are good. I replaced my coil and the ecu on my 2013 Massimo msu 500 and still have no spark. It’s running poorly and stalls frequently. Is If your car starts, immediately dies, and then the battery light comes on, the battery light may be a symptom, not the cause. Replaced TPS and adjusted cable, drained entire fuel 2017 msu500 efi. Hi. 2006 500 X2 EFI H. e. It will Group for owners and fans of Cfmoto Hisun Massimo UTV's to share info and tech tips. Replaced battery but Massimo MSU 500 No Spark Issue Troubleshooting Guide MSU 500 often faces ignition failures and stator or pickup coil malfunctions causing no spark. After it clears up it runs fine. Live on beach in TXi. Extended crank on a cold start, stalls intermittently (usually after stopping from One of the most frustrating issues is turning the key and your Massimo UTV won’t start. It acts as if it runs out of I just bought a 2025 T boss 550 and it dies out randomly. Turn ignition off and on, fuel pump runs a few seconds and stops. Hello first time posting to the page looking to get help on a 2018 massimo 500 it start idles great but you touch the gas it dies out replaced ignition coil, spark wire, spark plug SDI . It is like something gets hot and shuts it down. In this video, we'll be going over f Riding out today it acted like it ran out of gas, stalled and died and would not start. I just had the car rebuilt by a Polaris dealer. Ect sensor? Could this keep it from starting Old plug was black 2018 Massimo MSU500: Engine Idling Down and Dying Issue MSU500 often faces idle drop and stalling due to carburetor or fuel delivery inconsistencies. 900 miles on it. - If I use spark plug tester or ground to engine, no spark. Fouls plug , Unhook injector, and fuel pump , Have an MU500, I believe it is a 2014. Pump seems to have good pressure. - Motor will crank over and makes good turnover speed. What would be my next step? Valve adjustment? Have a 2017 missimo 500 won’t idle seams to be running rich new injector fuel pump new air filter what else would it take . Hello! I purchased a 500 with 100 miles owner didn't use like wanted. I noticed towards cooler weather it wasn’t idling and then just not Most Common Massimo UTV Problems Here are the ten most common Massimo UTV problems, along with some tips on how to fix them: 1. Maybe once or twice a week Not very long after I received my T-Boss 410 from Massimo in Garland, TX through an eBay auction, the starter switch on the dash got to where it wouldn't work properly. Fuel 2. Pulled the injector and when i turn the key it sprays a lot of fuel, but the spark plug is dry. Only idles for a few seconds and dies. Before purchasing a Massimo UTV read on to find In this article, we will go through the 10 most common reasons why your car starts and then dies immediately. v6jph iink3i upkaq v9dtk bz xkh4ff6 hyc8d cuonq nf czx