Quantcast
Jump to content


LM300 engine upgrade options??


Recommended Posts

On 5/26/2022 at 3:15 PM, Buggy said:

The Harbor Freight Predator 420cc should work but verify your shaft size and rotation is the same. The Honda 390cc is a great engine but will cost a lot more.

might want to check the new Harbor freight 459cc engine.

Link to comment
Share on other sites

Keep in mind that the factory matches the drive clutch and belt to the engine horsepower. Too much horsepower will smoke the belt and maybe the clutch.. your factory setup should be ok with a modest upgrade. I think your drive setup can handle up to a 400cca and would not go more than 420cc unless you plant to  upgrade clutches and belt .

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.
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 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!
    • By darth vadner
      I have a 2019 hi sun 750 I parked it in my garage last fall and about a month later I went to ride it and I had no power but the battery shows good. I’ve taken the ignition switch out and cleaned it. I cleaned the battery terminals and replace the main relay all my fuses are good. I still show strong battery but get no power, can anyone help or have any ideas? I have yet to find any wires chewed up like from a mouse or anything all the wiring looks good. 
    • By Grizz
      Hello I bought a axis 700 two years ago and have had no problems until the other day was going down dirt road and lost all electrical power except lights and starter engine will turn over but not start and display panel went out so can’t see any codes can anyone help I’m getting up in years and my knees are not what they use to be. Thanks 
    • By Jhud
      In the market for side by side. Narrowed it down between the pioneer 1000 or defender Hd9. Looking for pros and cons of both. Any info would be helpful in my selection process. Noise, speed, reliability, ride, all of it.
    • By djl
      Hi All.  The splines are pretty well worn where the rear driveshaft fits into the adapter (boss?) on the rear of the engine.  I have a new driveshaft / adapter / seal to install but am having difficulty loosening the nut holding the adapter onto the transmission output shaft.  I purchased a chain-type vice grip tool thinking that I could get it around the adapter to prevent it from turning but have not had any luck getting it in there yet (very tight space).  What approaches have you used that have worked?  Thanks!
×
×
  • Create New...