Quantcast
Jump to content


2017 Cub Cadet Challenger 750 hisun junk motor

hisun junk

By hisun junk
in Cub Cadet UTV SxS Forum

 Share

Recommended Posts

hisun junk Rookie

hisun junk

Posted
Posted

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.

hisun750.JPG

Link to comment
Share on other sites
Lucas Lenartowicz Rookie

Lucas Lenartowicz

Posted
Posted

Keep us posted, wondering how the yamaha will fit. So far I've had good success with aftermarket yamaha parts but haven't tried internal parts so curious to see. The Hisun parts can be difficult to get sometimes, and not necessarily cheap. I haven't looked at comparing oem yamaha prices with oem hisun but i know that some aftermarket yamaha parts are cheaper.

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

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.

×
 Share
Go to topic listing

  • Similar Topics

    • didgeridoo
      Hisun Sector e1 Battery replacement: any tips?
      By didgeridoo
      Hello, All!  I've decided to replace the traction batteries in my 2018 Sector E1 with a 48V Lithium set. They may be expensive, but I figure the Discovery Dry Cell are, too. I am not looking for the max driving range, as I have never received near the brochured range to begin with, but a good mix of charge/ get work done/ charge is what I am expecting.
      I have settled on the 48V EAGL kit from bigbattery dot com. Each battery pack provides 30Ah. The kit ships with a charger, as well. The packs would be physically connected in parallel (using a busbar) to one another, maintaining the 48V voltage, but together would be able to provide the amp draw the buggy pulls when going up hill or towing a rake (rated 320 max continuous Amps). This is in comparison to the serial connection the eight 6V lead batteries. Each of the EAGL batteries looks to have its own BMS; am I correct in thinking I will have to use their included charger rather than (simply) changing the onboard charger to lithium mode? The chemistry of the pack is LiFe PO4, for what it's worth.  I haven't torn anything apart yet (to diagram), so  I am not sure how the dash will interpret the AMP draw, but the kit I am looking at includes a dash mounted charge indicator.
      If anyone has completed a similar conversion, do you have any tips? Specifically, how did you remove the original batteries, and how did you secure the new ones? I am guessing that almost any change from the stock batteries would involve at least some modifications. Any tips would be appreciated, especially things I may have failed to consider. Thanks!
    • John M in Louisiana
      Hisun E1 Power Plug Replacement
      By John M in Louisiana
      Quick question about replacing the plug.  One of the prongs pulled out, so I'm thinking it will be an easy fix to connect the old cord with a new plug but I'm unsure about the specs.  15amp 125v?  Is it more complicated than that?  I do plan to buy a plug that's water tight.
      Thanks in advance!
    • John Gubancsik
      2020 Hisun UT400 Battery
      By John Gubancsik
      I'm having trouble finding a replacement battery for my UT400.  Has anyone bought one and where did you get it?  Thanks.
    • Fordman1
      850D fuel pump replace
      By Fordman1
      Cleaned fuel filter and am replacing mechanical fuel pump. Unbolted but can't get fuel pump out. Shaft sticks out and fuel pump hits axle and won't come out. Anyone had this problem?
    • Fast Free Shipping on All Orders Over $50
    • A P
      2022 Hisun Sector 550 eps. Power steering not working
      By A P
      Hi
      I have a 2022 hisun sector eps 550. 30amp fuse is blown for eps. Checked the motor and it’s fine. Opened up the controller and found a bad diode. Dealer wanted 500$ for the controller. Just posting this in case it helps someone. I couldn’t read numbers from the old one so just took a guess and replaced it with a 100v 3amp diode. 

UTV FORUMS

MORE SECTIONS

FOLLOW US ON

GET IN TOUCH

  • Automotive Webmaster
×
×
  • Create New...