Removing Exhausts

Adrian · Spanner Monkey Joined: 06 Mar 2009 Karma :

Hi everyone,

I'm thinking of removing the exhaust system on my Hornet for cleaning and was wondering is there anything I should be aware of or it's pretty straight forward?

Can you just take them off, polish them and put them back on?

Thank's a lot!
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DAS 18/06/09 Off The Kerb Motorcycle Training. Proud owner of a Honda CG125 & a Honda Hornet

MarkJ · World Chat Champion Joined: 11 Apr 2006 Karma :

If you take the headers off you'll need four new gaskets that go inbetween the headers and the block.

There is a reasonable probability that the nuts are rusted onto the studs, and when you try undoing them they will just snap the stud, and you'll need to buy and fit new studs and bolts.

Someone will be on in a bit to tell you how to increase your chances of getting bolts off studs using plusgas. I've only ever replaced one set of headers off a trackbike and they all came off fine, so can't comment.

Adrian · Spanner Monkey Joined: 06 Mar 2009 Karma :

Thank's for the reply Mark. Why do these need to be replaced?

The bike is quite new so I doubt there's going to be bolts that are rusted or anything like that.
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DAS 18/06/09 Off The Kerb Motorcycle Training. Proud owner of a Honda CG125 & a Honda Hornet

Pickledswede · Traffic Copper Joined: 15 Jul 2008 Karma :

I found this out when I did mine recently, the gaskets are copper tubes, you can get fibre ones but they're slightly different. When you put the downpipes on and tighten them up these get crushed and take up all the space between the manifold and the exhaust, creating a seal, when you take the pipes off and put them back on they'll never fit exactly again so you need new ones to form a proper seal

Adrian · Spanner Monkey Joined: 06 Mar 2009 Karma :

Perfect, now I'ts all clear. Another problem solved...

Thank's everyone!

Smile

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DAS 18/06/09 Off The Kerb Motorcycle Training. Proud owner of a Honda CG125 & a Honda Hornet

MarkJ · World Chat Champion Joined: 11 Apr 2006 Karma :

Sorry didn't notice you had a new shape Hornet. As it's 2 years old max you're probably alright on the rusty studs front. When you come to putting them back on it might be a good idea to pop some gopper grease on the threads to stop them seizing in the future.

Adrian · Spanner Monkey Joined: 06 Mar 2009 Karma :

I will do that. Does it have to be copper grease or?
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DAS 18/06/09 Off The Kerb Motorcycle Training. Proud owner of a Honda CG125 & a Honda Hornet

bacon · World Chat Champion Joined: 09 Jan 2009 Karma :

Adrian · Spanner Monkey Joined: 06 Mar 2009 Karma :

I'll just buy some copper grease...keep it on the safe side. Smile

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DAS 18/06/09 Off The Kerb Motorcycle Training. Proud owner of a Honda CG125 & a Honda Hornet

Skudd · Super Spammer Joined: 01 Oct 2006 Karma :

Don't use normal grease. Embarassed

A mate of mine Wink

only did that once many years ago, HIS bike smoked like a good 80 a day guy when stood at traffic lights.
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Famous last words of Humpty Dumpty. " Stop pushing me "
Petty Anarchists look at "1984".............. The Visionary looks at "Animal Farm".

Adrian · Spanner Monkey Joined: 06 Mar 2009 Karma :

Lol, i'll stick with copper grease then.
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DAS 18/06/09 Off The Kerb Motorcycle Training. Proud owner of a Honda CG125 & a Honda Hornet