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Post by beerkingcobra on Sept 2, 2006 0:16:09 GMT
ok im a good a good mechanic... i replaced my carb with a new one on my tank sport 50 cc. Since then i havent be able to get it started. i have spark, compression.... gas is a so so new ngk spark plug valves are set and timing is good  I have used starting fluid. And i cant seem to ge this little 50 cc motor to start.  . i have been told by other scooter guys that it takes awhile to get it started after a carb replace but come on i have been out ther for 25 kicks and nothing. Any suggestions? Bill |
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Post by enu06 on Sept 2, 2006 6:25:47 GMT
Make it 50! It takes ALOT to pull the petrol through, thats half of the complaints of new bike owners.
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Post by cb50j on Sept 2, 2006 8:55:41 GMT
there are a few posts aound about sucking the fuel through?
.............. C
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Post by Macrofeet on Sept 15, 2006 15:32:39 GMT
Take off air pipe going to the fuel valve(other end) suck on the pipe, which will open valve, petrol should then drain from tank into fuel filter & carb
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Post by beerkingcobra on Sept 15, 2006 21:40:53 GMT
this is really something. like i said there is spark although somewhat erractic but its there. Gas is there compression is there. Valves are set correctly. timing hasnt changed. And it wont start. Now will the CDI have anything to do with this. Im ready to throw the $%$%$%$ thing in the Trash. motor has 985 miles onit new spark plug ngk valves set compression seems good new carburator gas in float bowl Help  Bill |
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Post by Macrofeet on Sept 16, 2006 18:55:22 GMT
sorry for the crude non technical wording of my post but have you
checked that the little raised square (which i dont know the corecct name of) on the flywheel is not rusty where it meets the pickup coil
also check if the contacts are not rusted on the inside of the flywheel/Stator Coil Rotor, strator coil
and also you could check the cdi coil and ht lead
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Post by beerkingcobra on Sept 16, 2006 21:26:01 GMT
yes i checked the bump as you refered to it.It is as clean as a whistle.im starting to lean towards the cdi but it either works or dosent right ?. the scoot ran fine before the new carb refit.Although it wasn"t going pass 25 mph. That was the reason for the new carb> i even tried the old carb and still cant get it started. i know there is gas getting in there also have tried starting fluid no go . So i guess ill go out and get a new cdi and see if that works. If that dosent i guess it has to go to the shop LOL I work on v8 racing cars. And cant get a single piston engine to run I will also check out the rest of the things that you mentioned THX Bill figures  |
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Post by Macrofeet on Sept 17, 2006 9:17:08 GMT
sounds like its fuel related if it worked before i dont see how the cdi or anything else would stop working after a carb change it would be very unluckly
did you change the plug after it stopped working or before ?
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Post by beerkingcobra on Sept 18, 2006 5:18:28 GMT
tried 2 plugs since then
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Post by px166bajaj on Sept 18, 2006 7:07:08 GMT
Does it smell of petrol when you try to start it? It could be flooding. Try crimping/disconnecting the fuel pipe temporarily while you start it, and wind the throttle wide open, to get some air in there.
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