Quantcast
Jump to content


Recommended Posts

Posted

Sup utv dudes, newbie in AZ desert! I have a ceased 250cc motor, I'm wondering if there is any way to get it moving without spending a lot of money. Maybe pull it apart oil everything and put it back together (white trash logic)? Or do I have to get new rings? 

Posted

Welll, depends on what is seized, if the rings are toast, most likely that means the connecting rod and crank bearings weren't getting oiled either.

it's not a 2 stroke is it?

Posted

I would start with the piston.

Fill the cylinder with diesel fuel and let it sit for about 5 days. Usually what I do is use a wooden dowel and small hammer and tap the piston lightly repeatedly.  If that doesn't free it up i'd tear it down and see what needs replaced in the bottom end.

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
  • Similar Topics

    • By hisun junk
      As I tried to do a conversion with the Yamaha 660 motor, I realized the 660 was never fuel injected so it would not work for the fuel injected hisun motor swap. But the good thing is the hisun 750 motor is a clone of the 660 Yamaha but with the components for the fuel injection (cam/crank position sensor). So that left me with a new rebuilt Yamaha 660 and still a broke 750 hisun motor. I took apart 750 think the timing chain had broke from all that I've heard about these motors. The chain was not broke, but just off cam and crank gears! The chain tensioner was at fault!  I've ordered Yamaha 660 replacement parts, chain, two exhaust valves (which got bent when chain came off while motor was spinning) and seals. The piston has 2 little nicks where it had hit valves but no damage otherwise. The head is being redone at the machine shop and I'll be putting it back together in the next couple of weeks. Also I finally tracked down a Service Manual with all the info on the 550/750 Challenger.

    • By Polish DIY Lover
      Hi i'm jakub and i making DIY UTV. Some questions?
    • By shawn b
      my hisun died on me while driving it started losing power then stalled. it wants to start but wont . it didn't over heat. I replaced plug,fuel filter injector, and fuel pump.put code reader on it and says no codes. have any ideas possibly sensor? Any input on what it could be would be appreciated
    • By TPlummer
      We recently purchased the Axis x550. Fueled it with 93 fuel and drove one time around the farm and the 02 fault error appeared. Any ideas? 
    • By Chucky 1
      I purchased a new 2023 Landmaster UTV L4 in October of 2023.  UTV didn't seem to have as much power of the demo L4 that I drove but figured once it broke in it would be better.  After about a week the unit started bogging down backfiring and stopping.  Gas fumes really bad, wait a few minutes and it would start up again.  Brought it back to the dealer and after keeping it for a few weeks said he couldn't find anything wrong with it.  Got it back home and it started acting up again, brought it back to dealer a week later and he said he found couple things that might cause it to do run bad and he was able to replicate the issue but didn't really know what was wrong.  Got it back home again after being at dealer for several weeks and the unit started running bad again right away.  Brought it back to dealer and he went back and forth with Kohler about possible fixes but just checked somethings and try to swap a few parts but still runs bad.  I called Landmaster HQ to speak with someone about a refund and was told that was handled at the dealer level.  Dealer called Landmaster and they told him they didn't do refunds or exchanges especially with units that had problems.  The dealer is now trying to get a new engine to but I have not heard anything as of yet.  I did file complaint with Better Business Bureau and they accepted my claim and reached out to Landmaster.  The National Service Manager called me and said the he had been contacted by the BBB about the complaint and he would look into it.  I told him that I would just like to have my down payment of $2,000.00 returned and never mind the over $1,000.00 I have paid in notes for a UTV that I cannot even ride on without hoping it gets me around the neighborhood.  I have found out that the 2024 Landmaster UTVs will have Vanguard engines due to issues with the Kohler engines.  Very disappointed in what is "Proudly Made in the USA" and the way Landmaster has treated this disabled veteran! 
×
×
  • Create New...