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Carb adj
by: gatekeeper - Apr 1, 2013 4:57:56 GMT -5
Post by gatekeeper on Apr 1, 2013 4:57:56 GMT -5
Turn the screw out 2 1/2 turns. That is a good starting point.
The 139qmb motor comes standard with an 18mm carb. 50cc or 60cc doesn't matter.
With 4000 miles I would be doing a valve adjustment.
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Post by gatekeeper on Mar 31, 2013 13:27:54 GMT -5
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Post by gatekeeper on Mar 31, 2013 11:48:34 GMT -5
Possibly because once things were warmed up they expanded enough to minimize any air leaks.
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Post by gatekeeper on Mar 31, 2013 11:28:40 GMT -5
Most likely that little piece of plastic is long gone and won't be a problem.
Now your intake must have vibrated loose and allowed the rubber o-ring to unseat. That will cause enough of an air leak to cause you to loose your vacuum. Replace the spacer and o-ring, snug the intake down tight and that should solve your vacuum problem.
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Post by gatekeeper on Mar 28, 2013 19:52:21 GMT -5
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Post by gatekeeper on Mar 25, 2013 9:12:26 GMT -5
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Post by gatekeeper on Mar 25, 2013 9:04:28 GMT -5
What size is it? Some of the Elites were 4 strokes.
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Post by gatekeeper on Mar 24, 2013 23:14:37 GMT -5
Using a larger fuse will work, however, when there's a short, you may actually blow the wires, or electronics, rather than the fuse. Also, if the battery is 7A, a fuse of 10A will do nothing but glow a bit. I believe on my 50cc they use a 2-2,5A fuse.. A 7amp rated battery will put out way more than 7amps in a short burst. It will do a lot more than make a 10amp fuse "glow". The 7amp rating means the battery will maintain a 7amp load for a set period of time, 1 hour. A 10 or 15 amp fuse is fine on a 150 scooter. |
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gasoline
by: gatekeeper - Mar 24, 2013 12:08:59 GMT -5
Post by gatekeeper on Mar 24, 2013 12:08:59 GMT -5
From what I've read, China uses a different method to rate octane than we do in the U.S. Their 91 "super" equates to our 87 "regular grade.
All I know for sure is that all three of my scooters seem to run the best on our good old 87 octane.
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Post by gatekeeper on Mar 24, 2013 11:49:23 GMT -5
U da Man! ;D
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Post by gatekeeper on Mar 22, 2013 20:57:09 GMT -5
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Washington
by: gatekeeper - Mar 21, 2013 2:01:04 GMT -5
Post by gatekeeper on Mar 21, 2013 2:01:04 GMT -5
Shelton, Washington. Land of salt and fresh water, mountains and rain. Aside from that, if anyone in the local area needs help getting their scooters to run right I'd be more than happy to help. Just want a riding partner? I'm up for that too.  |
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gasoline
by: gatekeeper - Mar 21, 2013 1:52:37 GMT -5
Post by gatekeeper on Mar 21, 2013 1:52:37 GMT -5
My 50cc, 150cc and 250cc all accelerate faster with 87 octane as opposed to 91 octane. Just my experience.
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gasoline
by: gatekeeper - Mar 20, 2013 19:43:29 GMT -5
Post by gatekeeper on Mar 20, 2013 19:43:29 GMT -5
My opinion and experience: Unless you are running a high compression engine or are having problems with pre-ignition (pinging) 87 octane works fine in most scooters. The higher octane can actually give less performance in a lower compression engine as the higher octane tends to slow down the combustion process. Unless you are having pre-ignition issues I would use the 87 octane.
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Post by gatekeeper on Mar 20, 2013 19:25:46 GMT -5
Terrilee is right, like any other new skill in life it just takes practice. Maybe start off when traffic isn't so heavy so you can spend more time getting used to the feel of the road and not worry so much about the other vehicles on the road. The more you do it the easier it gets.
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