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Post by salsashark on Apr 28, 2014 16:49:23 GMT -6
My scooter has narcolepsy. It sometimes dies. To cope with this, I got in the habit of adjusting the idle screw. I open the gas cap, put it back on, and tighten the idle screw a bit. That usually gets it going again. I think I need to get to the air/fuel screw for a more permanent fix, but it's covered with a brass or copper cap.
Why is the air/fuel screw covered? Is it for my own good?
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Doc's Anything Goes
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Post by adamhoyer on Apr 28, 2014 17:09:35 GMT -6
I got the same thing on mine because of the California E.P.A.
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Doc's Anything Goes
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Post by jct842 on Apr 28, 2014 17:52:17 GMT -6
All the new ones seem to be capped/ Easy fix, take off carb, drill a small hole in cap...maybe 1/8"... just enough to get a drywall screw started and take a pliers and yank it out.
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Post by DrRocco on Apr 28, 2014 18:11:49 GMT -6
I did mine when I got it a couple months back. This is the video I used as reference. It was super easy and I did it in about 15 minutes at my kitchen table.
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Clinician
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Post by salsashark on Apr 28, 2014 18:53:09 GMT -6
Yeah, I watched a video showing how to do that. I've just been feeling squeamish about it. But I can see that I really need to get that lousy cap off. Thanks.
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Post by DrRocco on Apr 28, 2014 18:55:08 GMT -6
No reason to get worked up over it. It's super easy. Welcome to the forum by the way!
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Doc's Anything Goes
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Post by davec on Apr 28, 2014 20:54:10 GMT -6
On my Honda shadow, i just drilled the hole in the cap just big enuf for a jewelers screwdriver, and left the cap in. IF, there's access to get to it without removing the carb.
Would also prevent the screw from getting lost if it vibrated loose, which can happen
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Post by Bashan on Apr 28, 2014 21:04:49 GMT -6
So what's with the taking the gas cap off? That makes it run for a while? If so your tank vent is blocked.
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Post by salsashark on Apr 29, 2014 6:35:57 GMT -6
Yeah, it does seem to need to sort of 'catch its breath.' I don't understand it. But now I'll look into this fuel vent you mentioned. Thank you.
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Post by salsashark on Apr 29, 2014 11:34:33 GMT -6
Does anyone know where the fuel vent is on a 150cc scooter? I cannot see one in the neck under the cap. Is it the cap itself? Some discussions seem to indicate this. The impression I get is that fuel vents on scooters can be tempermental in different temperatures. I would like to discover a fix that would allow use in the widest range of temperatures.
Also, should I be worried about accidentally spilling vodka on the carbuetor?
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Post by Alleyoop on Apr 29, 2014 12:08:14 GMT -6
If you do not see any small hose coming off the top of the gas tank then the cap is the one that is vented. Now if you bought it used the previous owner may have replaced the cap with one that is not vented. But you can drill a small hole 1/16 and that is enough to vent the cap. As far as the Vodka, not to worry once in a while the motors love a kick in the piston.   Alleyoop |
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Post by salsashark on Apr 29, 2014 17:21:56 GMT -6
That's a pretty smooth solution Davec. It assuages my main fear of dealing with that crazy cap.
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Post by salsashark on Apr 29, 2014 17:45:05 GMT -6
Alleyoop, that answers a couple of different questions. It's a new scooter, I've only had it for a couple months. But it's chinese and seems to have a lot of cheap parts. So I looked at the gas cap and thought the gasgate on my old scooters cap looks to be of a better manufacture quality. So I switched them. If this doesn't fix it, I'll drill that 1/16 hole you suggested.
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Post by Bashan on Apr 29, 2014 18:11:55 GMT -6
To determine if it's a venting problem, leave the cap loose and ride it. If it doesn't have that problem at that point, it's a vent problem. Vodka goes down YOUR intake manifold, not the bike's. Rich
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Post by salsashark on May 1, 2014 20:51:14 GMT -6
Bashan, I took your advice and rode it with the cap loose. It ran fine all day with the loose cap. So I guess it is a venting problem. I was considering making small cuts in the cap gasgate so that it will burp more easily. But after running it, it didn't spill gas or smell. I wonder if it would be wise or foolish to always run it with a loose cap and just tighten it when I park it as a general policy. Or do you feel verk strongly that drilling a hole in the cap is the best idea?
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..BAD TO THE BONE..