Question about 2004 Factory bike Chrono SM 250

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My 50cc scooter is having trouble starting

I have a Baotian BT49QT-11 retro style scooter and its not been used for a bout 4 months.
I have recharged the battery, (previous to not riding for a while) I replaced the spark plug.
There is fule getting through to the carb and it has nearly started whilst on the electronic start.
I squerted a little wd40 into the carb and it did start straight away. but Im worried that this might do harm if its done to often.
The bike is stored in the garage and it seems to get like this when its cold or left in the wet for too long.
Any Idaea how I can get it start every time? and is it a bad thing to use wd40 or starting fluid to get the thing going?
Any advice would be great Thanks

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  • Anonymous May 16, 2009

    scooter wont start at all, has batter power and kick start but after sitting for the last 2 months or so wont start at all.

    Last time it started on the first kick, and ran for a solid 30 minutes before I shut it off. Now it wont start period.


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I keep having problems with my chinese moped 50cc in the morning it will not start so i have to heet it up with a hair driyer to warm the engin then it starts but when im going to college i cant get back becuse its to cold someone please help me solve this problem

Posted on Jan 24, 2009

  • ryantester Jan 24, 2009

    can any one help my question

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The only way i can start my scooter is to kick start , what is my problem?

Posted on Apr 06, 2010

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I would think if your scooter has been sitting for awhile that that the problem would be within your carburetter. It probably just needs a good clean out. You will have to remove the carburettor from the scooter. Once removed take off the top there will be a thin diaphram holding the slider and needle jet. Inspect diphram for any sign of wear or holes (pin ***** size) and clean needle jet and slider taking great care not to damage. Remove the bottom of the carb remove float assembly and Main Jet inspect and clean (including the float bowl) . Remove Auto choke assembly and clean needle. When finshed reassemble carburettor . Here's a link to what the parts look like, http://www.chinesemotorcyclepartsonline.co.uk/subcategory30413.php Good luck.

Posted on Jan 13, 2009

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Posted on Jan 02, 2017

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Nov 02, 2009 | 2004 Factory bike Chrono SM 250

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