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49cc I just don't understand....

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Zedxfarin
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Joined: 17 Mar 2009
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PostPosted: 13:24 - 28 Apr 2010    Post subject: 49cc I just don't understand.... Reply with quote

I'm rebuilding a 49cc from a Midi moto. The top end has a port for the Carb to fit in but there is no port to fit the exhaust?

WHAT THE HELL?

Anyone ever worked on Mini Motos? Were is the exhaus manafold?
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Montesa Cota 350cc, Yamaha DTr 125cc, Yamaha Timberwolf 250cc, Yamaha YZ 250cc, Kawaski kmx 125cc, Kawaski kmx 200cc, Yamaha TY80cc, 175cc Chinese Dirt Bike, Chinese Wanyge 125cc, Mini & Midi Moto 50cc - What i have owned.
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nightshaddow
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PostPosted: 13:30 - 28 Apr 2010    Post subject: Reply with quote

try post some pics of the engine might be some help also what engine dose it have 4t or 2t more info the better
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Zedxfarin
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PostPosted: 13:35 - 28 Apr 2010    Post subject: Reply with quote

Here is the new top end why is there only one port?

https://www.hkmotos.com/pic/nbb2.jpg
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Montesa Cota 350cc, Yamaha DTr 125cc, Yamaha Timberwolf 250cc, Yamaha YZ 250cc, Kawaski kmx 125cc, Kawaski kmx 200cc, Yamaha TY80cc, 175cc Chinese Dirt Bike, Chinese Wanyge 125cc, Mini & Midi Moto 50cc - What i have owned.
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hmmmnz
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Joined: 22 Aug 2006
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PostPosted: 13:39 - 28 Apr 2010    Post subject: Reply with quote

lol, haha,
your getting a bit confused mate,
what you think is the inlet is actually the exhaust,
the inlet is on the base of the engine, it draws fuel/air directly into the crankcase
https://i.ebayimg.com/24/!BhJ9h4QBGk~$(KGrHqMH-DkEsLt+DFgHBLH7miTFVw~~_12.JPG
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Wiring Diagrams BIDNIP it bitches
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Zedxfarin
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Joined: 17 Mar 2009
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PostPosted: 13:42 - 28 Apr 2010    Post subject: Reply with quote

Fuck sake, theres no inlet like that on this engine. it has to ports like a normal engine.
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Montesa Cota 350cc, Yamaha DTr 125cc, Yamaha Timberwolf 250cc, Yamaha YZ 250cc, Kawaski kmx 125cc, Kawaski kmx 200cc, Yamaha TY80cc, 175cc Chinese Dirt Bike, Chinese Wanyge 125cc, Mini & Midi Moto 50cc - What i have owned.
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hmmmnz
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PostPosted: 13:47 - 28 Apr 2010    Post subject: Reply with quote

lol, bugger aye,
all mini motos ive come across have the crankcase intake,
chances are, that the barrel wouldnt fit the stroke of your engine anyway, you can't just mix and match barrels,
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Zedxfarin
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PostPosted: 14:21 - 28 Apr 2010    Post subject: Reply with quote

i H8 CHINESE CRAP BIKES
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Montesa Cota 350cc, Yamaha DTr 125cc, Yamaha Timberwolf 250cc, Yamaha YZ 250cc, Kawaski kmx 125cc, Kawaski kmx 200cc, Yamaha TY80cc, 175cc Chinese Dirt Bike, Chinese Wanyge 125cc, Mini & Midi Moto 50cc - What i have owned.
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ThoughtContro...
World Chat Champion



Joined: 14 Aug 2008
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PostPosted: 16:56 - 28 Apr 2010    Post subject: Reply with quote

Zedxfarin wrote:
Here is the new top end why is there only one port?

https://www.hkmotos.com/pic/nbb2.jpg


OT, but looking at that cylider head reminds me of one of these

https://www.densmodelsupplies.co.uk/media/uploads/lrg_head_1255465270.jpg

which belongs on one of these. 0.049 cu in of 2 stroke 16% nitro methane goodness.

https://www.quicktechhobby.com/Engines/C00340.JPG

0.049 cu in of 2 stroke 16% nitro methane goodness.
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