Quantcast
Jump to content


Yardsport ys 400

johnney

By johnney
in UTV General Discussion

 Share

Recommended Posts

johnney Contributor

johnney

Posted
Posted

i have a 2011 hisun ys 400  idles high,once in awhile, runs horrible under load. iv'e put several differant carbs on it , cleaned the gas tank , took off the vaccum fuel pump and put  an 

electric fuel pump.  no change HELP 

this is a carburated engine, but was wondering is there any electrical components that meter the fuel flow,  like  mass air flow senser or something like that could be causing the fuel delivery

problem.

ps i have owned this rig since it was new , and haven't had a full  year of flawless riding.

 

oh and bought it from menards and told me i was stuck with it.

  • Alex changed the title to Yardsport ys 400
  • 2 years later...
Captain Bob Rookie

Captain Bob

Posted
Posted

I have the same one (Menards' Yardsport 400). Mine has been running great for years. Put it up in the shed for the winter. Spring comes and it won't start. I figured it was probably stale gas (sat for 6 months) although I had been doing this every year previously with no problem. So, just in case, Drained the gas & refilled with fresh; pulled the plug > good compression; good spark. Cranks fine. Pulled the air filter element > clean. Sprayed starter fluid into the filter housing > still not a pop.
Fuel filter looks dry. Does it get "filled" after starting or ?  I'm gonna set up a fuel container on the roll bar so it provides gravity fuel pressure and try that. Anyone have other suggestions?

  • 2 months later...
Captain Bob Rookie

Captain Bob

Posted
Posted

OK, I put a PLASTIC container up on the roll bar with duct tape and filled it with gas. Put a nozzle from my aquarium supplies in the bottom. Ran a hose directly to the carb, bypassing the fuel pump and fuel filter. With gravity as the "pump" I tried to start it and it caught and ran after 2 cranks! I visually verified that the fuel pump was pumping (spurting gas out) and caught the gas in a container. I let it warm up a bit, shut it off, and put everything back as it should be. It then started right up (and has several times over a week, since)! So it's back to normal and I have no idea why it wouldn't start.

Captain Bob Rookie

Captain Bob

Posted
Posted
2 hours ago, Joe Breaux said:

Stuck float or trash blocking line?

I'm gonna say that a "stuck float" is the best possible answer. The pressure from the gravity feed was likely enough to push open the float valve.

  • Like 1

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.

×
 Share
Go to topic listing

  • Similar Topics

    • clint501
      Hisun E1 charger not working
      By clint501
      I recently purchased a Hisun E1 and the other day the charger stopped working properly. The LED on the dash blinks red & green and the light on the side of the charger also blinks red & green. The fan on the charger does not come on like it used to do. There is no error code that I can see. Does anyone have any suggestions to remedy this?
    • Gorj
      Sector E1 Battery change out
      By Gorj
      I am going to replace the batteries in my E1. I am not interested in the high cost Lithium or the expensive 6 volt dry batteries.  I am considering four 12 volt deep charge marine batteries. I have a source for 810 amp units for about $100 each.  I have no worries about reprograming the charger because it went out a few years ago and I replaced it with generic golf cart charger. When I decide to do this, I'll keep you posted on the results.
    • judy140
      Bighorn Explorer 400
      By judy140
      I am looking for a service manual for Bighorn Explorer 400
    • strike250
      Free Massimo Buck 400 service manual
      By strike250
      I have the factory service manual available for the Buck 400. Just send me a message with your email and I'll get it to you. Although there is no charge for this, it would be great if  you would visit my website where you could donate any amount to help do things like this with others who need it. Again, there is no charge for this manual, and no obligation to donate. But if you did, I would thank you for sure. Have fun on the trails. www.warriorsoffroad.com
       
      Matt

    • 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!

UTV FORUMS

MORE SECTIONS

FOLLOW US ON

GET IN TOUCH

  • Automotive Webmaster
×
×
  • Create New...