fuel petcock does give enough fuel

Discussion in 'Motorized Bicycle General Discussion' started by mobike91, Apr 6, 2011.

  1. mobike91

    mobike91 Member

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    so when i ride my bike. i usually get it to full throttle and go about is fast as it can go. well when i wind it all the way out the float bowl gets to empty and it chokes out. not getting enough gas. is there an upgraded fuel petcock that has a higher flow rate then the stock one? let me know.
     
  2. The_Aleman

    The_Aleman New Member

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    I've had the same problem on 2 different builds. One thing that helps is to remove that little filter that's on the kit petcock. I always run an inline fuel filter, as do most people with MaBs. I'm also running an inline petcock after fuel filter (see pic). My tank has a 1/4" NPT nipple instead.

    Sickbikeparts.com has a real nice one, and you can also find them in hardware stores, as I did. It doesn't have to be special, but there's a lot of em out there better than supplied with kits.

    Also, I recommend using good-quality SAE fuel line. Today's pump fuel is not kind to a lot of stuff.
     

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    #2 The_Aleman, Apr 6, 2011
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  3. baadboy

    baadboy New Member

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    well my 6 year old kit came with a small brass 1 and had the same problem new kit came with silver one between the 2 the silver empty the tank in a few sec the brass 1 took almost a minute hope this helps


    but after i got new 1 silver 1 4 old bike no more problem with empty bowl at top end
     

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    #3 baadboy, Apr 6, 2011
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  4. Pablo

    Pablo Master Bike Builder & Forum Sponsor

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  5. Pilotgeek

    Pilotgeek New Member

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    Not had a problem with the petcock, but check and see if your tank isn't venting. Unscrew the cap and see if it still has the same issues.
     
  6. bairdco

    bairdco a guy who makes cool bikes

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  7. mobike91

    mobike91 Member

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    i was reading on your thread, said in there about fuel line vibrations. i got alot of that lol.

    i think it might just be a clogged intank fuel filter. when i got that tank it had alot of rust in it. could never really get it out. and with all the vibrations. might have shook some loose in there. iv pulled of my line a few times and its flowing alot slower. i figure its time to check it out. most likely clean it.

    thanks for all the imput guys. great help. thats what i love this place for

    mobike91
     

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