Dellorto PHF32 springs

Robjota said:
Hi Greg
I found Cycle brake wire, at 0.8mm to be exactly the same dia as the suzuki cables as was the Vintage Matchless inners, that I did use eventually (had a load of them).

I used the new bicycle outers, with their nylon lining but the inner wires both Teflon coated and std wire, were all stainless and I couldnt solder them, no matter how much I tried (of course they're all crimped or cast in situ these days but they aint soldered)

Hope that helps, dont want someone carrying around a spare inner for roadside repair to find they cant solder it ...So make sure you find non SS bowden

Rob
Click to expand...

Rob - I can't afford the top end stainless....I'm pretty sure what I use is deraillier gearchange wire which in the cheap versions is zinc plated and does solder nicely.
 
Thanks Bob.  I have been studying those reports. We'll get it sorted. Appreciate the feedback, and agree that a richer jet (without pumps) may make more problems that it's worth.
Funny part is (f*ck off CK..but thanks..) we are not chasing engine performance, just rider comfort. Short races are cool, but we have a one hour enduro coming up, and both Blair and I find it awful tight after 15 minute track day runs.. wierd I know, that that's what we've got.. :D

8)
 
maaate,
i agree with Bob, i would rather have pumpers working, than not working,, but
Rob's dyno run is slamming open the throttle at 2500 rpm??  is it not?
so ya probably not going to be doing too much of that on a track with a 6 speed box and the gearing setup ok?
and i rode pommy stuff without any pumpers for years,  but there is a limit as to just how quick you can slam open the throttle.

reckon ya should get ICR Steve to supply a 'ride by wire' fuel injection system,
for you limp-wristed old bloody racers !!

and i am from the canefields,, i no nothing !!
cheers
 
Greg
wasn't trying to be pedantic, probably just different geography, I expect if I went into a little bike shop, they'd have a roll of steel bowden but THe big chain just had this slippery stuff, in teflon, that I threw away in disgust :)

Mark, the dyno guy does wind the throttle open pretty quick but I reckon I open it quicker, he's in 4th so no different to what a real man would do on road  :o reckon its a fair simulation,  ... Google laverda pdq dyno 2011 and I expect you'll see what he does..
 
Regarding the use of bicycle cables a point worth mentioning is if you are tempted to use the bicycle spec outer cable bear in mind bicycle brake cable has a spiral wound outer casing whilst derailleur outer has the outer layer laid longitudinally [which is why derailleur outer cable explodes quite spectacularly if you use it as brake cable outer]
The derailleur outer cable gives a much more precise feel but won't take excessive compression, this precision is vital for the fine adjustment required on modern indexed cycle transmissions.

In summary; either type of outer cable will be fine for a throttle, derailleur outer will give a more precise feel but won't go around curves quite so well. My advice would be to use spiral wound brake outer cable.
 
You must log in or register to reply here.
Back
Top