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Exhaust leak?

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GREENI3
World Chat Champion



Joined: 26 Nov 2010
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PostPosted: 22:56 - 09 Mar 2011    Post subject: Exhaust leak? Reply with quote
I've recently noticed there's a leak, where the exhaust meets the head.

It's a black sludge sort of liquid. (possibly an oil/water mixture)

I can see it spitting out when the engines on.

I thought it might be the gasket, but I need a 2nd opinion.

Taken a few pics of the area where the leak has occurred.
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Shreddie
Spanner Monkey



Joined: 20 Nov 2009
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PostPosted: 23:10 - 09 Mar 2011    Post subject: Re: Exhaust leak? Reply with quote
WiiLKO wrote:
It's a black sludge sort of liquid. (possibly an oil/water mixture)

Aye, oil if it's a 2 stroke plus water and carbon left over from the combustion process.
Quote:
I thought it might be the gasket

Most likely. Usually an easy job to sort out but be careful with the exhaust studs at the head, they're prone to snapping.

Make sure you get the old gasket out and clean the mating surfaces.
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lozza
Nova Slayer



Joined: 23 Sep 2010
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PostPosted: 15:40 - 10 Mar 2011    Post subject: Reply with quote
cant see properly from the pics where its coming from but it looks like the crap that was in my exhaust port when i took my exhaust off (also 2 stroke).

Quote:
Usually an easy job to sort out but be careful with the exhaust studs at the head, they're prone to snapping.


heed this advice, its worth buying a torque wrench if you dont have one. check out the pics on the link below see what happened when i over tightened mine - looking at a new cylinder now.

https://www.125ccsportsbikes.com/forums/index.php?showtopic=85246&st=0&gopid=1242007&
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