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70cc Gaskets

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RugbyGriffo
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Joined: 05 Apr 2009
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PostPosted: 16:13 - 26 May 2009    Post subject: 70cc Gaskets Reply with quote
heyy

i Have a Aprilia Rs50 With a 70cc bore Kit, and the gaskets have gone! :O

what gaskets do i need to put back on?

Thanks James
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SM.Morgan
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PostPosted: 23:44 - 26 May 2009    Post subject: Reply with quote
The kit you have would be helpful, but what you need to do is find a gasket kit for the big bore you have.
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RugbyGriffo
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PostPosted: 11:05 - 27 May 2009    Post subject: Reply with quote
Umm Well i Bought It With The Bore Kit Already On It?:S
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RugbyGriffo
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PostPosted: 11:34 - 27 May 2009    Post subject: Reply with quote
Head Gaskets!!

No There Were All Snapped When i Opened It Up
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RugbyGriffo
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PostPosted: 11:52 - 27 May 2009    Post subject: Reply with quote
there is one from bottom of piston barrel, which is blue.

and one from under the head which is like a square with 4 circles on it.

and a big circle which i red which goes around the top head.

will put oi pic up in a min.
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RugbyGriffo
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PostPosted: 12:03 - 27 May 2009    Post subject: Reply with quote
Pics
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RugbyGriffo
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PostPosted: 12:15 - 27 May 2009    Post subject: Reply with quote
Thanks, But Will They Be 70cc Gaskets Or 50cc?
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RugbyGriffo
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PostPosted: 12:27 - 27 May 2009    Post subject: Reply with quote
Lol Yeah!

i Can Only See 80cc Gaskets
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RugbyGriffo
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PostPosted: 12:52 - 27 May 2009    Post subject: Reply with quote
Yeah My Piston Is 49mm Very Happy
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RugbyGriffo
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PostPosted: 13:16 - 27 May 2009    Post subject: Reply with quote
Thank You Very Much Razz

Does Head Have to Be Torqued?
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Hutchysrs50
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PostPosted: 16:09 - 27 May 2009    Post subject: Reply with quote
CHR15 wrote:
https://www.adrenalin-pedstop.co.uk/p/AIRSAL-TOP-END-GASKET-SET-FOR--2623.aspx


im pretty sure thats differnt to the kind he needs.

might work tho....
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Hutchysrs50
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PostPosted: 16:39 - 27 May 2009    Post subject: Reply with quote
thinkin about it, the standard 50cc one should fit really...

just because the hole in the middle of the cylinder gets bigger, doesnt mean all the gaskets have to be bigger?

all the cylinders, cylinder heads ect.. are all the same size.
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Hutchysrs50
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PostPosted: 16:52 - 27 May 2009    Post subject: Reply with quote
CHR15 wrote:
no there not?!?!?


the 70cc will have a larger diameter than the 50cc

how do you think they increase the volume???


bigger piston inside, more compression etc...

but the cylinder doesnt change, just the hole in the middle (dont know the technical name for it)
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Hutchysrs50
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PostPosted: 17:11 - 27 May 2009    Post subject: Reply with quote
CHR15 wrote:
the diameter of the cylinder sleeve (the inside bit of the cylinder ) is increased, and seeing as the gasket that seals that is an o-ring, youl need a bigger o-ring.

also, the size of the entire barrel is bigger, to allow more water around the cylinder to help cool more. due to the extra heat being created.

so yeh, maybe the base gaskets would be the same, but all the top end ones will be bigger on a 70.




hmm, im not sure!!
i have a 50cc, 50cc re-bore, 70cc and an 80cc kit in my garage, i may check soon if i feel abit better.
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Hutchysrs50
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PostPosted: 17:34 - 27 May 2009    Post subject: Reply with quote
CHR15 wrote:
the diameter of the cylinder sleeve (the inside bit of the cylinder ) is increased, and seeing as the gasket that seals that is an o-ring, youl need a bigger o-ring.

also, the size of the entire barrel is bigger, to allow more water around the cylinder to help cool more. due to the extra heat being created.

so yeh, maybe the base gaskets would be the same, but all the top end ones will be bigger on a 70.


ok, i can tell you that the gasket kit you sent him will not fit.

also im sticking to my guns on this one, iv went and checked and all the cylinders are the same size, the top gasket is the same, the 4 small 0-rings are the same and the main seal around the piston is the same!!

but not in your case as the piston seal and the 4 o-ring seals are one piece, which means you need a proper one to fit your cylinder head.

also. i have a compleate set that would fit your bike spaire Rolling Eyes
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Hutchysrs50
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PostPosted: 17:38 - 27 May 2009    Post subject: Reply with quote
CHR15 wrote:
the diameter of the cylinder sleeve (the inside bit of the cylinder ) is increased, and seeing as the gasket that seals that is an o-ring, youl need a bigger o-ring.

also, the size of the entire barrel is bigger, to allow more water around the cylinder to help cool more. due to the extra heat being created.

so yeh, maybe the base gaskets would be the same, but all the top end ones will be bigger on a 70.


ok, i can tell you that the gasket kit you sent him will not fit.

also im sticking to my guns on this one, iv went and checked and all the cylinders are the same size, the top gasket is the same, the 4 small 0-rings are the same and the main seal around the piston is the same!!

but not in your case as the piston seal and the 4 o-ring seals are one piece, which means you need a proper one to fit your cylinder head.

also. i have a compleate set that would fit your bike spaire Rolling Eyes
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RugbyGriffo
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PostPosted: 18:23 - 27 May 2009    Post subject: Reply with quote
Ummm Hii

i Am Pretty Confused Now!!!

So What Do i Need to Buy Please?

Thanks James
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Hutchysrs50
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PostPosted: 18:29 - 27 May 2009    Post subject: Reply with quote
im honestly not sure!!

i dont think you can buy the ones CHR15 showed you, as they dont fit your cylinder head.

you will need to find the make of your cylinder and ask the shop if they sell the gasket sets.
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RugbyGriffo
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PostPosted: 18:38 - 27 May 2009    Post subject: Reply with quote
I Don't Know The Make and i have had a Good Look!!

https://www.adrenalin-pedstop.co.uk/p/COMPLETE-GASKET-KIT-FOR-MINARE-1925.aspx

What About The One On The Left?

James
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Hutchysrs50
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PostPosted: 18:43 - 27 May 2009    Post subject: Reply with quote
yeh, there the ones you need, but theres no guarantee they will fit your bike.

do you have the standard 50cc cylinder/head?
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RugbyGriffo
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PostPosted: 19:12 - 27 May 2009    Post subject: Reply with quote
Don't Think So, i Have Bought The Bike With The 70cc Bore Kit Already On It :S

What Should i Do?
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Hutchysrs50
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PostPosted: 19:23 - 27 May 2009    Post subject: Reply with quote
RugbyGriffo wrote:
Don't Think So, i Have Bought The Bike With The 70cc Bore Kit Already On It :S

What Should i Do?


not to sure, add me on msn if you want.

[email protected]
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RugbyGriffo
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PostPosted: 19:29 - 27 May 2009    Post subject: Reply with quote
ADDED Razz
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RugbyGriffo
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PostPosted: 19:54 - 27 May 2009    Post subject: Reply with quote
Have You Accepted?
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Hutchysrs50
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PostPosted: 20:17 - 27 May 2009    Post subject: Reply with quote
CHR15 wrote:
that kit will work,

you may have looked at the blocks, but did you look at the heads???


they will be different!!

they have to be, the only way to change the capacity is to change the bore diameter!!


i dont think it will, the way his cylinder head is shaped, they need the same piston seal and o-rings as i have in my pictures and the one he has.

not individual ones.
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