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cv carb cough . . .

Discussion in 'Motorcycle Tech Talk' started by joshbob, Sep 18, 2013.

  1. hotroadking

    hotroadking Super Moderator Staff Member

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    good nuff JB
  2. joshbob

    joshbob Well-Known Member

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    Man, the weather has been fantastic for this time of year. Yesterday it made 80. I rode 60 miles or so and bought a leather vest. On the way there, after being bogged down in city traffic, the bike just dies while I was waiting at a light. Got off, kicked it over and went on my way. That has never happened before. Hmmm . . .:confused:
  3. hotroadking

    hotroadking Super Moderator Staff Member

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    gas fart,,,
  4. joshbob

    joshbob Well-Known Member

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    Gas fart? Hmmm . . . :confused:.
  5. hotroadking

    hotroadking Super Moderator Staff Member

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    or vapor lock... same thing...
  6. joshbob

    joshbob Well-Known Member

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    Thanks for clarifying that. I know vapor lock. My old Chevy step van did that sometimes in southern California in the summer. Only solution, I was told, was to wait for a while and try to start it up again. Sometimes I had to wait a long time. What can be done to make that not happen again on my scooter?
  7. charlie46

    charlie46 Well-Known Member

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    On cars, we used to put some old style clothes pins on the fuel line in front of the carb to help dissapate heat from the line. Maybe route your fuel line away from the motor. Tin foil would also work for heat problems. I know it sounds silly,but it works.
  8. hotroadking

    hotroadking Super Moderator Staff Member

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    It could be something else, make sure you are running fuel line
    for the gas and try and keep it off the cylinders as best as possible.
  9. joshbob

    joshbob Well-Known Member

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    I have official fuel line, but it is running between the cyclinders, maybe an 1/8" clearance from touching either one. It's covered with some braided high temp stuff made especially for fuel and oil lines. But I am getting another gas tank soon that has a fuel outlet bung on the carb side. That should :stop: the gas farts .
  10. hotroadking

    hotroadking Super Moderator Staff Member

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    The braided might be picking up more heat I would check it after a good ride to see if it's warm or hot
  11. FLHTbiker

    FLHTbiker Moderator Staff Member

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    Had a fuel line on a car motor do that and found Ford had routed the fuel line under the oil pan and then up next to the block. Every time it got hot outside and we had to stop at a long light it would vapor lock. Put some tin foil around it and it worked. Got some new fuel line and re-routed it worked perfect.
  12. joshbob

    joshbob Well-Known Member

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    The gas line is rubber covered with a black braided looking material (not metal)that's supposed to protect the rubber lines from contacting hot surfaces.
  13. hotroadking

    hotroadking Super Moderator Staff Member

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  14. cowboy

    cowboy Moderator Staff Member

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    That should do the trick & a 1/8 in either way should be fine ,I ran my shovel that way for many years ,& my EVO is run the same as well
  15. joshbob

    joshbob Well-Known Member

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    I just read somewhere that tin foil works in a pinch, but it wouldn't look too hot on a bike. Don't think I've ever seen foil on a bike fuel line before. I'll be ordering a new 2.4 gallon "custom" Mustang gas tank from Paughco on Wednesday. It's a bit more streamlined than the tank I have now, 1 1/2" longer, more rounded at the front and narrower at the back end. But the trade off in cool is that I am losing about a gallon capacity :D.

    It has a bit more capacity than my old Sporty 2.2 gallon tank. Can't believe I rode cross country with that itty-bitty tank - several times. Only ran out of gas once crossing the southwest . . . gas stations were few and far between in those days.

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