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Post by tvnacman on Jun 15, 2014 17:48:07 GMT -5
I like to use oversized fuel line 1/4" it holds a drop more fuel , I feel its a little reserve . Be sure the fuel line has no low spots then needs to come back up on its way to the carb . If your vac lines are questionable change them .
John
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Post by JerryScript on Jun 15, 2014 20:05:17 GMT -5
The carb should be lower than the petcock, and the petcock should be lower than the gas tank. The lines should not drop below the height of the lower component they are connecting to. Don't make them tight straight lines, or you risk vibration and bouncing pulling them off their connectors. Just enough slack to make it "slack".
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Post by wutzthedeal on Jun 16, 2014 12:29:17 GMT -5
Ok that all makes sense; I just don't get why they built this with the fuel tank exit at the same height as the petcock. I'll make than line as taught as possible w/o going too tight and then get the slack out from petcock to carb.
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Post by jerseyboy on Jun 16, 2014 14:35:13 GMT -5
Get a Mikuni High Flow fuel pump that works off your vacuum,,it will pump fuel 10ft straight up..lol
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Post by wutzthedeal on Jul 6, 2014 15:36:12 GMT -5
Well guys for an update on this; it was ok for a while, then started messing up again. I just went n and twisted everything like the coil where it connects to the plug and the other end where the nuts are. That held it for about 100 miles. Now it's doing it again. I stood up on the scooter as it sputtered along like it wasn't getting enough fuel to make sure that sitting on the seat wasn't pinching a hose or connection and that didn't help. Came sputtering home again... it would die out, then would go maybe 15 or 20mph, sputtering, then "catch" and go ahead up to 35mph, then after a mile, maybe, start repeating the process. This morning before all of this I rechecked all cables/connections and WD40d the exposed connections. Swapping CDI has not made a difference. Because it was "catching," it makes me think it's not heat related; that I either have an air/fuel flow intermittent problem or a loose wire (or, as others have suggested, a dying coil). I'm going to swap coils next.
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Post by wutzthedeal on Jul 14, 2014 7:50:41 GMT -5
Update: I ended up finding a tiny leak near the petcock, literally like one drop of fuel per 10 seconds and patched that up, plus I took out my plug and cleaned it with a wire brush; it wasn't really gunked up or anything but the threads had a dark color, unusually dark, and the tip that goes to the coil was also pretty dark. Cleaned those and WD40d 'em. Also sprayed a little WD40 inside the plug end of the coil. Finally, re-cleaned the other end of the coil (the posts and clips) and WD40d those, too. Since then, all has run well but I've only had bout 50 miles worth of test-riding. Hope this helps anybody who has the cutting-off during a ride problem.
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Post by tvnacman on Jul 14, 2014 8:20:03 GMT -5
Get the dielectric grease for all connections . The wd dries out andvyou have no moisture barrier .
John
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