HM341's on a k1

[Green1]

Hi all
I decided to run down to David silvers Saturday and buy reproduction k2 pipes for my k1.I can highly recommend them as they look identical the chrome is pukka and they fit like a glove .If I remove the diffusers they sound almost as good as the HM300's.I have herd of some people drilling out the baffles so you don't have to re jet.Has anyone done this?
Cheers
Mick         

[SteveD CB500K0]

Surely from Essex, you go "up" to David Silvers??

Seriously, I never knew they had a retail desk? My mother-in-law lives in Woodbridge and I've often wondered whilst wandering around Southwold or Leiston that maybe I could dump the family on the beach and go for an interesting peruse around DSS...

[Green1]

HA funny Steve
I never knew they were in Leiston and I have been working just yards away.It's not what you expect!Unfortunately I didn't have time to look around.
Just got to MOT and register the bike now   

[LesterPiglet]

What do you mean by register?

[Green1]

American import so no number plates no log book.

[mick]

Hi Mick i would leave the exhaust as they are it would be a shame to butcher them  ,

love the colour of your bike is it valley green? also like the brier brown to  cheers Mick.

[Green1]

Hi Mick
The bike is Valley Green.I never new they did it in green so just had to have it. I've just sold the 250 to pay for the new pipes 

[Seamus]

Why did you buy HM341's for a K1? Are the 300's no longer available?

[BigAl (Alan)]

mmmm! I know DS are selling a pattern HM341 exhaust as well as the Honda HM341. But why buy these Rather than HM300's?  Anyhow from experience of both exhausts the bike will run, you may need to re-jet for a better performance. But as for removing the baffles from the HM341 you would need to drill out the 5No baffles...follow the 5No spot welds on the outside of the exhaust for there location...long metal hole cutter required...

Good luck

Alan

[Green1]

You can't get get HM300's from David Silvers any more and they only have three genuine HM341's left.They are trying to find someone to make pattern 300's.I emailed some dealers in america and they are running low a full set of pipes imported to the UK comes to $4000  .I'm sure I read somewhere that you just drill half a dozen 15mm holes in the end of the baffles and cut the back off the diffusers to make the hole bigger.   

[SteveD CB500K0]

DS have just launched a re-manufactured set of 341s.

http://www.sohc.co.uk/index.php/topic,4416.0.html

They can't be out of stock already.

I can get trade prices (usually about 10% off)

[Green1]

The re-manufactured pipes are what I bought they have seven sets in stock at the moment.It's just the genuine pipes you can't get any more. 

[BigAl (Alan)]

Your bike can be adjusted to suit the HM341 pipes, ok they will not sound as  the HM300's as they where a straight through pipe with a removable baffle, you would still need to remove the 5 No
spot welded internal baffles to produce a similar HM300.

If you can get hold of My CB750 book by Mark Paris he explains then modifications on page IV-8 very clearly...jet size,carb clip height, exhaust baffle changes.

[Green1]

Hi BigAl
Just seen the price  of the book I have bought new 105jets already so I think I will see how it runs and go from there.
Does anyone know of an insurance company that will insure a bike on just the VIN number?

[UK Pete]

carole nash insured my k1 on the vin number, when registered with dvla i gave them the reg and they changed it over