gio 50 no fire when hot

mark123 · 08-09-2011, 04:50 PM

I have a 50 cc Giovanni atv which has a copy of the old honda 50cc engine. It works perfect for about 20 min. and then it quits and there is no fire at the plug. If I leave it for approx. 1/2 hour it will start up again and work fine for another 20-30 min. Is there some overheat protection system built into these or what could be the problem. Sometimes it works fine for longer periods but this has been happening for over a year now. I tried a new plug and the same thing happens. I have it geared down with larger rear sprocket and smaller front one but also have the throttle limited to approx. half of normal travel. Thanks for any help.

katoranger · 08-09-2011, 05:51 PM

Really not much to the ignition system. My guess would be a CDI box or the coil itself. Both of these are cheap and easy to get.

Coils will give those symptoms.

TurboT · 08-14-2011, 08:38 PM

Quote:

Originally Posted by katoranger

Really not much to the ignition system. My guess would be a CDI box or the coil itself. Both of these are cheap and easy to get.

Coils will give those symptoms.

Yup, CDi, Coil, Wire, Plug.

All relatively cheap and easy to change. As Kato mentioned, I'd start with the CDI.

FLASHLIGHTBOY · 08-22-2011, 12:31 AM

I would say you coil is getting hot and crapping out when hot.... when it does this... coil it down with water or blow cool air from a compress on the coil... and it this helps ,... then you know it is the coil... or just change the coil... and see .. tehy are cheap

08-09-2011, 04:50 PM	#1
mark123 Join Date: Nov 2009 Posts: 10	gio 50 no fire when hot I have a 50 cc Giovanni atv which has a copy of the old honda 50cc engine. It works perfect for about 20 min. and then it quits and there is no fire at the plug. If I leave it for approx. 1/2 hour it will start up again and work fine for another 20-30 min. Is there some overheat protection system built into these or what could be the problem. Sometimes it works fine for longer periods but this has been happening for over a year now. I tried a new plug and the same thing happens. I have it geared down with larger rear sprocket and smaller front one but also have the throttle limited to approx. half of normal travel. Thanks for any help.
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08-22-2011, 12:31 AM	#4
FLASHLIGHTBOY Join Date: May 2009 Location: SASKATOON Posts: 1,161	no spark I would say you coil is getting hot and crapping out when hot.... when it does this... coil it down with water or blow cool air from a compress on the coil... and it this helps ,... then you know it is the coil... or just change the coil... and see .. tehy are cheap __________________ DEALER FOR ZSTAR & GIO PRODUCTS, TAOTAO ABIBABA ATV ETC
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08-09-2011, 05:51 PM	#2
katoranger Join Date: May 2007 Location: Altamont, Kansas Posts: 15,103	Really not much to the ignition system. My guess would be a CDI box or the coil itself. Both of these are cheap and easy to get. Coils will give those symptoms.
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