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General => General Discussion => Topic started by: kymco God on March 17, 2011, 07:45:22 PM

Title: tick over problem, please help :(
Post by: kymco God on March 17, 2011, 07:45:22 PM

i have got the kymco super 8 50cc, and it runs fine, but, when i slow down and stop, it will just slowly die, and turn of (when the choke is of), basically it doesnt idle when stationary. is this a problem with the idle jet, or the cdi unit? if this is the problem, where can i get a new one?
thank you for your help
(btw the choke works fine).

Title: Re: tick over problem, please help :(
Post by: ts1 on March 17, 2011, 07:58:27 PM

Carburetor adjustment:
warm up
adjust mixture screw to max rpm
adjust idle screw for robust idling

Title: Re: tick over problem, please help :(
Post by: kymco God on March 17, 2011, 08:12:38 PM

thanks, where are they on the carb though

Title: Re: tick over problem, please help :(
Post by: ts1 on March 17, 2011, 08:37:06 PM

4-stroke:
mixture screw #16154, idle screw (without number) above #16142
http://www.kymco-ersatzteile.de/shop/catalog/default.php?cPath=101_1579_1834_2020 (http://www.kymco-ersatzteile.de/shop/catalog/default.php?cPath=101_1579_1834_2020)

If you have the new 2-stroke, it's #20 and #10
http://www.kymco-ersatzteile.de/shop/catalog/default.php?cPath=101_1579_2935_2944 (http://www.kymco-ersatzteile.de/shop/catalog/default.php?cPath=101_1579_2935_2944)

Title: Re: tick over problem, please help :(
Post by: kymco God on March 18, 2011, 10:04:13 PM

thanks for your help, how much do i adjust the mixture screw too?
cheeers :)

Title: Re: tick over problem, please help :(
Post by: ts1 on March 18, 2011, 10:39:10 PM

Mixture screw about 2-3 revs outside all-in, to the position which results in maximum idle rpm. Just try!

But I forgot:
If the valve clearance was checked long ago, you should do this prior to carb adjustment. With cold engine!

Title: Re: tick over problem, please help :(
Post by: kymco God on March 19, 2011, 09:56:56 AM

thanks for your help
will the choke still work properly when it is started from cold though? (auto-matic choke on this scooter btw). and it doesnt really like and throttle when the choke is on.
cheers :)

Title: Re: tick over problem, please help :(
Post by: ts1 on March 19, 2011, 10:03:49 AM

You don't touch the choke with valve clearance or carburetor adjustment, it will still work.
The choke is basically a heated bimetal slowly closing an additional jet.