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mrnylon

Joined:

Dec 12

Posts: 5

mrnylon says:

650K9 Bandit

Why on start up from cold do the outer downpipes warm up more slowly than the inner?

There is no evidence of misfire, and the engine is smooth and even.

Are the outer pipes double skinned or do I have a fault? :sunglasses:

 

 

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  • Posted 2 years ago (15 December 2012 00:26)

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jaffa90

Joined:

Mar 09

Posts: 8894

jaffa90 says:

pipes

How do you know the inner pipes warm up quicker ?

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mrnylon

Joined:

Dec 12

Posts: 5

mrnylon says:

650k9 Bandit

I can hold the outer downpipes for 1  minute after startup, you can feel there is some heat but I can put a bare hand on the pipe near the head. The inner pair can not be touched after 10 seconds.

The outer pipes also heat from the bottom, hence my thought they may be double skinned on the outer.

The pipes are all the same colour and after a couple of minutes thay are all as hot, with the old spit and sizzle technique.

 

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oscarthegrouch

Joined:

Oct 05

Posts: 3142

But

does the bike run ok you nugget?

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jaffa90

Joined:

Mar 09

Posts: 8894

jaffa90 says:

pipes

Air cooled Bandits will have double skinned chrome down pipes,i suspect yours is a fuel injection liquid/water cooled and has stainless steel single skin.Are your talking about no`s 2&3 cylinders downpipes being hotter than no`s 1&4?

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mrnylon

Joined:

Dec 12

Posts: 5

mrnylon says:

Pipes

That's exactly right.

 

 

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mrnylon

Joined:

Dec 12

Posts: 5

mrnylon says:

Nugget

Careful, I resemble that remark!!

 

Yeah it runs fine, it can hunt on a light throttle when hot and on warm days, but beyond that no worries. Never had a bike before that having a colder downpipe didn't signify a mixture issue.

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jaffa90

Joined:

Mar 09

Posts: 8894

jaffa90 says:

pipes

Don`t know about the fuelling on 4 in-line water cooled cylinders injection models (kcmc will have more idea) but the inner 2 cyls run hotter on carbed air cooled models that`s why the mixture is slightly richer.

If your happy with your e.e.c strict emissioned  K9 your lucky. (i don`t mean your dog):lol:

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mrnylon

Joined:

Dec 12

Posts: 5

mrnylon says:

pipes

Having got off a 90,000 mile 600 Diversion I was hoping for more than I got, but for the kind of riding I do the Bandit suffices, better at motorway speeds than round town, but then who isn't?

Ironic, or moronic, location the cat in the silencer and having to burn more fuel to heat the bloody thing up all in the name of 'environmentalism'

 

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