Engine wont start help pleasee :(

Hey guys i just recently boight a sq water cooled bike, just put a 50cc 6port head onto it it has a brand new 19mm carb the problem is that when i try starting it, it just back fires coughs might fire 3-4times then die again the whole engine was built before i bught it now im thinking it could be two problems apperntly WB racing built the engine so i highly doubt it could be a leak in the crank case

1 is that it has a orange spark could be alittle weak

2 because it was rebuilt maybe the crank wasnt sealed proply and its not sucking up enough fuel

also the reeds were changed and im thinking they could have been put in wrong it dosnt sound like it sucks much from the carbi when u try starting it

thanks in advance for any help!

orange spark is pretty weak. buisiness card between the flywheel and coil to space it out - should be a strong white or purple.

will it stay running if you give it some throttle when you start it? if not its more then likely bad spark. sounds like a familiar bike anyway. whered you get it

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www.demon50s.com

- BZM 6 port Banshee SHO
- Polini 911 - pro chinese for sale! PM for details.
- Pro SQ Cag

the guy is off minimotorider he built it with the 46cc kit but i wanted bigger haha even with the 46cc it would do the exact same, with choke on throttle bout half it would fire 3-4times if its full throttle just loud backfire and no throttle rarly fire once ill move the coil 2moro morning and give that a try.

heres the link on ebay which is were i found it

WATERCOOLED POCKET BIKE - RARE SQ FACTORY MODEL!!!!!!! - eBay Road Bikes, Pocket Bikes, Pocket Bikes, Go Karts, Cars, Bikes, Boats. (end time 22-Oct-08 18:57:56 AEST)

new NGK spark plug & close up the coil to magneto gap as close as possible but be sure it dose not scrape

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"There´s no theory of evolution.....only a list of creatures Chuck Norris has allowed to live.."

how do i go about getting a plug for it because its got a torch one on it atm

take the torch plug to a motorcycle shop , auto dealer , or lawnmower chainsaw service store they will have a replacement NGK, Bosch or champion spark plug

the torch plugs are Chinese rubbish

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"There´s no theory of evolution.....only a list of creatures Chuck Norris has allowed to live.."

alright thanks for your help ill hunt around tomorrow and hopefully get to have some funn!!!!!!

if its backfiring also if the new plug and coil adjustment wont fix it the keyway on the flywheel might have broken off. that happens. definitely use a good spark plug if your going to all the trouble of putting a 6 port top end on !

__________________
www.demon50s.com

- BZM 6 port Banshee SHO
- Polini 911 - pro chinese for sale! PM for details.
- Pro SQ Cag

yes as glen said make sure the key way on the flywheel has not broken or bent

__________________
"There´s no theory of evolution.....only a list of creatures Chuck Norris has allowed to live.."

it had a 46cc head kit on it when i bought it it done exact same thing either way i wanted the 50cc 6port on it also its a BZM head kit once its going should be very quick!! im about to change the coil now and see how i go, i re gapped the coil n changed the plug exact same thing wish me luckkk