Can you help me with this problem with my Shanghai Shenke scooter?

by Sarah Huck
(Las Vegas, Nv. USA)

Brand new Shenke 661 mile on it is acting like the gas is getting choked off. My scooter was was dumped by hitting a curb at a slow speed. The next time I road it, it started sputtering a bit but would stop once it picked up in speed.

Over the next couple of days it got much worse. Feels like the gas is being choked off. I took out the spark plug, cleaned and regapped it. The air filter is totally clean. The gas line is clear. The carburetor looks clean.
Shanghai Shenke
661 miles
Thank You for your time and any help/advice you can give me.
Sarah Huck

Comments for Can you help me with this problem with my Shanghai Shenke scooter?

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Backwheelhardtoturnandjumpswhenyoutrytostartit NEW
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I have a 150 Shanghai,when you try to turn it over,the back wheel turns.When it's off its hard to push backwards,it's not the brake.

Sep 23, 2015
Backwheelhardtoturnandjumpswhenyoutrytostartit NEW
by: Anonymous

I have a 150 Shanghai,when you try to turn it over,the back wheel turns.When it's off its hard to push backwards,it's not the brake.

Jun 01, 2013
Fuel NEW
by: Anonymous

Fuel coming out of exhaust

Apr 20, 2012
by: loriann


Oct 07, 2011
Having same issue
by: Anonymous

I am having the same issue with the bike chugging out after dumping my bike and I was wondering how this issue was eventually resolved ?
Thanks for help that can be given

Sep 26, 2011
I have a dead battery & bike that doesn't start
by: Anonymous

I have an 08 shangi shanke 150cc scootter. The battery appears to be dead. The charger which came with the bike shorted out on the first use. Fried & sizzled like bacon. My question would be easier to replace the battery. Or buy a trickle charger. Either route, I'm unsure how to reach the battery. Can someone offer any advice on either?

Aug 04, 2011
Problem Solved?
by: MRacing

Would the OP mind posting what the solution to her problem was so that others with similar issues may benefit from this?

Aug 01, 2011
Mechanics stethescope
by: Anonymous

Maybe a loose or broken baffle? For narrowing the source of rattles and the like a mechanics stethescope is handy; available from Harbor Freight for about $10 or less. If you don't have one in your area try or other online supplier such as

Jul 29, 2011
Thank You for your input.
by: Anonymous

Thank you for all your suggestions. That problem has been solved. Now I have a new problem. There is a really bad rattle coming from the exhaust pipe. I have checked all the nuts and screws. They are all tight. There is a big cover over the pipe itself. It has been getting worse and louder.
It is to the point now I can hear it in traffic and wearing my helmet. The rattle will stop after the scooter reaches a speed of 30 or 40mph. I would appreciate any help on this matter.

Jul 29, 2011
by: G

Yes, it's me, "G," again. Just wanted to be a little more precise in my description and correct a spelling error:
...if no spark or weak and/or erratic spark...
...if a clearly discernable and regular spark...

Jul 29, 2011
Fuel system or ignition?
by: G

The first basic step in troubleshooting many engine performance problems is to determine if the problem is fuel system or ignition system. You do this by checking for spark; if no or very week spark then the problem is most likely ignition related; if a clearly discernable spark, then likely fuel system.

If you determine fuel system a possibility that may not be the first thing to come to mind if your scooter is smog legal is the hose line from your evaporative canister to your carb; if kinked can cause a performance issue as you describe.

Jul 10, 2011
Check for kinked gas line
by: B.J.

Take off the plastics and see if one of your gas lines is kinked. It happens pretty regularly and it's an easy fix.
Good Luck

Jul 04, 2011
Electrical Gremlin
by: Jim Zeiser

I would take off the plastic panels and find the CDI and ignition coil. Unplug and replug the connections on those units and check for any loose wires in the ignition circuit. Also replace the spark plug. CDI ignition eats plugs when the engine floods. It might look good, but believe me, spark plugs go to heck in no time.

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