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Bike won't start

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arpsyhon
L Plate Warrior



Joined: 23 Aug 2015
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PostPosted: 09:32 - 23 Aug 2015    Post subject: Bike won't start Reply with quote
I have got a Daelim S-five 50cc. My crankshaft bent so I changed it. I changed the crankshaft, the piston and all the other parts, generally everything in the engine is new and correctly placed. When I try to turn it on with the electric starter the crankshaft-piston does a full round and then stops. Then again another round and stops. And again and again. I checked my spark plug for sparking and it works just fine. But right there, I saw something weird. When the spark plug is removed and I press the electric starter button, the crankshaft-piston do their cycles normally without stopping! Can you tell me what could be wrong? I am totally frustrated with this and have nowhere else to turn to. Thanks in advance
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Wafer_Thin_Ham
Super Spammer



Joined: 18 Nov 2005
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PostPosted: 09:36 - 23 Aug 2015    Post subject: Reply with quote
Weak battery can't turn it over when the spark plug is in because of the compression?

Does it have a kick start, what happens if you use that?
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Rogerborg
nimbA



Joined: 26 Oct 2010
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PostPosted: 10:23 - 23 Aug 2015    Post subject: Re: Bike won't start Reply with quote
Jaysus, that's a true labour of love.

arpsyhon wrote:
My crankshaft bent so I changed it.

Why did it bend?

How did you set the timing? Did you replace the spark plug and if so with what? Is the cylinder hitting a valve or the tip of a "projector" plug? Did you replace the head gasket with an OEM one or did you smear a bit of hylomar in to try and get higher compression? Are you getting fuel coming through?

Probably the battery though. Wink
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