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Norm's 2 stroke repair center Having problems with you 2 stroke motorized bicycle engine? Just ask Norm. he loves to tinker and troubleshoot engines.

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  #1  
Old 08-24-2009, 08:53 PM
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Mrakulous Mrakulous is offline
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Default rings

What exactly do I do to get the piston into the cylinder.
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  #2  
Old 08-24-2009, 09:07 PM
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Default Re: rings

is it connected to the rod already? you need to line up the ring ENDS with the piston PINS.
the rings will not compress fully if they are not lined up, and so the piston will not go into the cylinder. good luck
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Old 08-25-2009, 04:02 PM
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Default Re: rings

I tried still wont go on. The rings wont compress
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  #4  
Old 08-25-2009, 04:37 PM
freewheeling frank freewheeling frank is offline
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Default Re: rings

ya need a ring compressor
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  #5  
Old 08-25-2009, 05:07 PM
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Default Re: rings

naw... fingers should be enough, if not there's something wrong. are the rings new? do they fit in the slots properly? is there carbon build up behind the rings in the slots?
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Old 08-25-2009, 05:11 PM
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Default Re: rings

Do The Ends Of The Rings Touch When You Squeeze Them On The Piston?
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Old 08-25-2009, 11:31 PM
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Default Re: rings

look through this it might help you get the piston into the cylinder. The wooden piston rest will make it easier.
http://motorbicycling.com/f39/motori...build-297.html
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  #8  
Old 08-27-2009, 03:55 AM
eisle89 eisle89 is offline
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Default Re: rings

I'm thinking that you don't have the ring gaps aligned correctly with the locater pins in the ring grooves. Get some 2 stroke oil on your fingers and have plenty of oil in the ring grooves. Wipe some on the inside bottom of the cylinder. Align the ring gaps with the pins in the groove, they will be toward the intake side if the piston was installed correctly. Pinch the ring on the opposite side of the locater pins and start that edge in. Be careful with the rings, don't force them, then slide your way toward the ring gap. It's a ***** but can be done.
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Old 08-28-2009, 02:44 PM
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Default Re: rings

Thanks for the info eisle89. I broke the ring the other day. My new set came in yesterday. I will try your method and i will use caution. I need my bike for school and i miss riding the biatch.
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