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Carbs and Fuel System
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post #1 of 6 (permalink) Old 05-23-2010, 02:16 PM Thread Starter
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rich??

Last night I succesfully completed my coastering and ear shave and it seemed to run fine on a test ride around town, but leaving for work this morning I noticed that full choke will now kill the engine and it seems to smell a little gassy. Also, on the highway it started surging after about 5 miles at 80mph and onr cylinder breifly cut out.
I set the pilot screws at 3 turns out per Lance's instructions, but I think I need to crank them back in about 1/2 turn or so. Any thoughts?

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post #2 of 6 (permalink) Old 05-23-2010, 06:59 PM
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I have no clue. I just went on my first long ride after the earshave was completed yesterday and it seemed to run great throughout the throttle. My screws are 3 turns out like Lance told me to. I look forward to the answer to your question. Maybe too much fuel?

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post #3 of 6 (permalink) Old 05-23-2010, 07:52 PM
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Did you place the carb vent hose out of the wind. If you get air pressure into that hose it will cause the engine to surge. Mine is connected to the nipple that is directly under the fuel tank.

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post #4 of 6 (permalink) Old 05-23-2010, 08:53 PM
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Quote:
Originally Posted by Rook View Post
Last night I succesfully completed my coastering and ear shave and it seemed to run fine on a test ride around town, but leaving for work this morning I noticed that full choke will now kill the engine and it seems to smell a little gassy. Also, on the highway it started surging after about 5 miles at 80mph and onr cylinder breifly cut out.
I set the pilot screws at 3 turns out per Lance's instructions, but I think I need to crank them back in about 1/2 turn or so. Any thoughts?
With the earshave you no longer need full choke because of the lerger jets. 3 turns is just a starting point, you will need to check the plugs and adjust the pilot screws accordingly.

If the fuel vent was the cause it would have started around 45-50 mph not 80 mph, and not 5 min @ 80 it would have been around 1 mile or less.


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Last edited by lance328; 05-24-2010 at 03:31 PM.
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post #5 of 6 (permalink) Old 05-24-2010, 03:11 PM
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I had to turn my screws to 2 turns out on the back cylinder, 2.5 was running to rich.

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post #6 of 6 (permalink) Old 05-25-2010, 01:01 PM Thread Starter
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Upon more in depth examination I found not only a fuel leak but both lines were kinked. Pulled the tank, fixed the leak, adjusted/ re-routed the fuel lines. Had to drop the idle down a bit after that, but the plugs look good so I'll run it a while and check'em again

Rook
Conway, AR
VROC # 30581
WBRA #90237-1
2009 1700 Nomad (mine)
2003 VN750 "Prozac" (now hers)
25'000 miles at purchase
Coastered
Ears shaved
Cobra exhaust

So, why is a raven like a writing desk?
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