Quantcast
Jump to content

Recommended Posts

Posted

Hello I recently picked up a 99 Big Bear 350 4x4 in very nice condition, the problem i'm having is it makes no power, even when in neutral when I rev the engine from idle it's extremely lazy building rpm.

Pulled the carb today and found the larger(easier to access) jet was a little plugged so removed it and blew the crap out, the smaller jet(more shrouded) looks to have an x-web in it that doesn't want to come out, i'm thinking there should be nothing in the jet so i'll be ordering new ones.

I still have a feeling it runs deeper than just the carb, although the valve train sounds okay i'll be pulling the timing adjuster out to make sure it's not extended to it's limits, if the timing chain adjuster checks out ok what might you suggest I look at next?  Thanks in advance for any suggestions put forth.

Posted

I think you are on the right track, rebuild that carb and check timing. Spark is good because its running and I'm assuming you have no air restriction, right? Air filter is clean?

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.

  • Popular Now

  • Similar Forum Topics

    • By Dutchaaron
      New to the site. Im rebuilding a Kawasaki Bayou 300. The wiring is my biggest challenge.
    • By captnunu
      Good morning, checking in from Southern Ontario, I have 3 quads. 201 Honda Forman 450S, 2007 Suzuki King quad 450 and a 2021 Polaris 570 sportsman. My wife and I do a fair amount of riding but hoping to do more this year. 
    • By toe420
      New member from BC. Anyone else from western canada? 
    • By NickPence
      Just wanted to drop a post to say hello. My name is Nick. I am from the Shenandoah Valley. Rockingham Va to be more specific. I am constantly working on junk or items i pick up from auction, mostly atvs but really about everything. My ATV knowledge is vast but find myself needing assistance regularly. 
    • By Yamahahahaha
      My name is Marty, I'm 36, married with 3 kids. I work as a Robot and Controls Software Engineer in the automation industry with a lot of mechanical and electrical background. I have 2 Suzuki LT230s, one is a 1985 230 Shaft, the other is a 1987 230 quadrunner. The shaft has been amazing since the day i bought it about 5 years ago. The quadrunner was picked up as a project, it had a previous electrical fire due to improper splicing by previous owner, It has a wiseco high comp piston in it and all the gaskets have been redone. Im currently crafting replacement wires for a new harness im building for it. I gave the 230 shaft to my 12 year old daughter and she loves it, it is such a great and reliable machine. Im currently looking for a repair manual so that she can learn how to do her own maintenance.
      I also built a 79cc predator powered quad for my 7 year old daughter from a blown up Temu quad i got for cheap.
      I look forward to meeting some of you and learning some along the way!


×
×
  • Create New...