72cc bore .... heard it was the shiet for stunting.. what do i need?

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Old Mar 31, 2009 | 01:49 AM
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72cc bore .... heard it was the shiet for stunting.. what do i need?

found a place selling it . Heres the link

http://www.fast50s.com/cart/customer...&cat=23&page=2

does this come with everything that i need? can someone list the complete 72 cc set up that would be perfect for stunting? IE carb size, and such.

That would be cool. I'm thinking about ordering one of these. Need a complete list of what i need to get with it tho. I already got a rev box, and filter for a 24mm carb. let me know what the perfect set up would be. thanks
Old Mar 31, 2009 | 01:54 AM
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Re: 72cc bore .... heard it was the shiet for stunting.. what do i need?

Originally Posted by Not2BrekinwiT
found a place selling it . Heres the link

http://www.fast50s.com/cart/customer...&cat=23&page=2

does this come with everything that i need? can someone list the complete 72 cc set up that would be perfect for stunting? IE carb size, and such.

That would be cool. I'm thinking about ordering one of these. Need a complete list of what i need to get with it tho. I already got a rev box, and filter for a 24mm carb. let me know what the perfect set up would be. thanks
also do i need a cam like this kit comes with

http://www.fast50s.com/cart/customer...&cat=23&page=2

whats the cam for?
Old Mar 31, 2009 | 02:21 AM
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Re: 72cc bore .... heard it was the shiet for stunting.. what do i need?

72cc is the best for stunting,all you need is the cylinder,piston and gasket leave EVERYTHING else stock. dratv.com has way better prices too.
edit. that fast50 kit sucks,the compression is too high,so they tell you to run a mixture of race gas. my 72 never pinged/detinated even with 87 grade gas

Last edited by *Tanus*; Mar 31, 2009 at 02:24 AM.
Old Mar 31, 2009 | 03:38 AM
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Re: 72cc bore .... heard it was the shiet for stunting.. what do i need?

Heres another place. Pretty spendy but, Best quality and Top performance!
Old Mar 31, 2009 | 05:45 PM
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Re: 72cc bore .... heard it was the shiet for stunting.. what do i need?

Originally Posted by *Tanus*
72cc is the best for stunting,all you need is the cylinder,piston and gasket leave EVERYTHING else stock. dratv.com has way better prices too.
edit. that fast50 kit sucks,the compression is too high,so they tell you to run a mixture of race gas. my 72 never pinged/detinated even with 87 grade gas
do i need the cam?
Old Mar 31, 2009 | 05:50 PM
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Re: 72cc bore .... heard it was the shiet for stunting.. what do i need?

and is this the kit

http://dratv.stores.yahoo.net/coenkitst70w.html
Old Mar 31, 2009 | 06:10 PM
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Re: 72cc bore .... heard it was the shiet for stunting.. what do i need?

sorry forgot to post a link

http://www.powroll.com/P_HONDA_XR50.htm
Old Mar 31, 2009 | 06:12 PM
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Re: 72cc bore .... heard it was the shiet for stunting.. what do i need?

you don't necessarily need the cam but, it helps
Old Mar 31, 2009 | 11:04 PM
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Re: 72cc bore .... heard it was the shiet for stunting.. what do i need?

Originally Posted by XRshfifty
you don't necessarily need the cam but, it helps
dont see it in the link
Old Apr 1, 2009 | 03:47 AM
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Re: 72cc bore .... heard it was the shiet for stunting.. what do i need?

I was talking about the kit you listed.
Old Apr 2, 2009 | 07:17 AM
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Re: 72cc bore .... heard it was the shiet for stunting.. what do i need?

Originally Posted by XRshfifty
I was talking about the kit you listed.
i know that but what i'm saying is that the link that you posted doesnt have the 72cc kit. Any more ideas? I really want to get this thing asap. If not i'm going with a 88 which i really dont want to do.
Old Apr 2, 2009 | 05:29 PM
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Re: 72cc bore .... heard it was the shiet for stunting.. what do i need?

I'm actually running an XR70 head (They have a displacement of 72cc) bored over, Stroker crank, Race Cam, and the 20mm Keihin Carb Kit. 100cc or more total
Old Apr 2, 2009 | 05:34 PM
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Re: 72cc bore .... heard it was the shiet for stunting.. what do i need?

Originally Posted by XRshfifty
I'm actually running an XR70 head (They have a displacement of 72cc) bored over, Stroker crank, Race Cam, and the 20mm Keihin Carb Kit. 100cc or more total
i dont want over 100cc's. I just want a little less than 88 and a little more than 50cc's. This post seems like its going no where. I need a link or something to a kit that i can just purchase and install!!!!1
Old Apr 2, 2009 | 05:43 PM
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Re: 72cc bore .... heard it was the shiet for stunting.. what do i need?

Originally Posted by Not2BrekinwiT
i dont want over 100cc's. I just want a little less than 88 and a little more than 50cc's. This post seems like its going no where. I need a link or something to a kit that i can just purchase and install!!!!1
Originally Posted by *Tanus*
72cc is the best for stunting,all you need is the cylinder,piston and gasket leave EVERYTHING else stock. dratv.com has way better prices too.
edit. that fast50 kit sucks,the compression is too high,so they tell you to run a mixture of race gas. my 72 never pinged/detinated even with 87 grade gas
Learn to read Tanus told you what to do...
Old Apr 2, 2009 | 06:01 PM
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Re: 72cc bore .... heard it was the shiet for stunting.. what do i need?

70 motor in a 50 frame is where its at! 108 in a 70frame is also
check out 50stunt.com for more info
Old Apr 10, 2009 | 01:29 AM
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Re: 72cc bore .... heard it was the shiet for stunting.. what do i need?

Originally Posted by secret weapon
70 motor in a 50 frame is where its at! 108 in a 70frame is also
check out 50stunt.com for more info
checked out 50 stunt and they have no 70 motor. Where can i get one i know you had one in your 50. I would love to put one in my fiddy also. Let me know where i can get one
Old Apr 10, 2009 | 01:45 AM
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Re: 72cc bore .... heard it was the shiet for stunting.. what do i need?

Originally Posted by Not2BrekinwiT
checked out 50 stunt and they have no 70 motor. Where can i get one i know you had one in your 50. I would love to put one in my fiddy also. Let me know where i can get one
I bought a crf70 bike and took the motor out of it... the crf 70 bike is soon to have a 108cc
Old Apr 10, 2009 | 01:46 AM
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Re: 72cc bore .... heard it was the shiet for stunting.. what do i need?

check ebay, or i know someone who has a crf70 head for sale and carb setup.. holla in pm if interested
Old Apr 10, 2009 | 10:27 AM
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Re: 72cc bore .... heard it was the shiet for stunting.. what do i need?

Originally Posted by secret weapon
check ebay, or i know someone who has a crf70 head for sale and carb setup.. holla in pm if interested
Is this what i need?

http://dratv.stores.yahoo.net/xr70pikit1.html

http://dratv.stores.yahoo.net/70cyl.html

http://dratv.stores.yahoo.net/topgas.html

according to the guy this will get me to 72cc's, Dont know much about the compression and MM's on these things but would this be the one for stunting? or is the MM's too big? Help me out here man!!
Old Apr 10, 2009 | 10:39 AM
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Re: 72cc bore .... heard it was the shiet for stunting.. what do i need?

stage 2 88cc kit from 50stunt.com and hi volume oil pump.



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