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  • Similar Forum Topics

    • By Pure_Michigan
      Hello everyone.  This is a Go Cart and not a typical "ATV" but it has an engine so I'm hoping someone can help me.  It's a Helix FTX with a Manco 150cc engine.  The engine will start and idle for awhile, but will not take even a small touch of throttle.  Stalls.  It seems to take throttle and rev up when you first start it cold, but in just a minute, it will not take any throttle.  I've replaced the Fuel valve/Pump on the fuel tank with no joy.  It's a nice little cart, but without a workable engine, it's a boat anchor.  I'm not dumb when it comes to small engines, but this one has me stumped.  I'm running out of options.  
      I'll mention that while it is idling, it will sort of "cough" every 6 or 8 seconds and then recover and idle again.  Eventually one of those "coughs" causes it to stall.  It will start back up pretty easily, but as I said, it absolutely will not take any throttle and then it will cough and stall a minute later.  I thought it could be timing, but there is no "adjustment" for timing on this engine.  I downloaded the user manual and it mentions nothing about timing and is pretty much useless as a service guide.  It just shows the basics.  I'm attaching the manual so you can get an idea of the machine I'm dealing with.  
      Any input would be greatly appreciated.
      Kind regards, 
      Don
       
      Manco-Helix-6150-150cc-Owners-Manual.pdf
    • By Charlesbrown
      I was given a 07 big bear 400 with all the options. The prior owner ran it through water and it started smoking  so he took the head off and gave up. I have  a bunch of parts in boxes and did a quick inventory.  I need a jug, piston, rings etc and thinking it’s better to buy a complete top end. Does anyone have a recommended site to buy parts? I plan to go oem, no china junk but if there are quality aftermarket manufacturers I’ll do an upgrade. 
    • By Brian Emerson
      Hi Guys, this Quadmaster has an extremely loud bang after turning key off (from idle), scares the stock, dog and missus, any ideas on what to check.
      Thanks and regards,
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    • By Patrik1543
      Good day, I have an atv 150 raptor with a bemi engine from 2002, at least that's what the label says, the problem is that it doesn't have electricity, I bought it completely new and nothing works except the starter relay, so I'd like to make it my own and with my own hands, I just need you to help us get a diagram because I can't find anything on the internet that would answer my idea, the quad bike has a 4-pin cdi and a 4-pole rectifier and a digital tachometer.
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