The Exhaust Thread

[scotjell]

Please could you help me out been stripping a project bike and the exhaust isn't standard after some identification from the experts. Probably standard front headers but some of the spring holders have come off hence the clamps.

[VFRkieran]

Time for another rare one, picked this up a few weeks back:











And there she is, Full JHA sp-1 style sprung system. Any suggestions on carb/airbox setup with this fitted would be brilliant.

[porndoguk]

Go in deep bro, two cans one for front and rear, i recon 125s wouldn't be to overkill, maybe a free flying filter either K&N or the rick o foam, leave the needle with one shim as it will be too rich in the midrange. Pilots ate 2 &1/4 turns stay with #35 pilot jets, wont hurt to drill the vac slides to 2.5mm dia

I may have some rick o needles for sale soon dependant on how i get on with my factory pro ones.

[VFRkieran]

Thanks Ricky, thinking somewhere between 120-125's will be ideal, free flowing filter, 0.5mm shim needles, 2.5mm slide holes, 2&1/4 turns on the pilots, and #35 pilot jets as a base setting and see where i stand. I have got 3 sets of carbs so i may set each up diffrently and see which one gives the best results, i think it may need a little tweaking with the RVF cams and no questening gears.

[marcus57]

Any help with what system this is? looks a little tatty but was very cheap.

[Cammo]

^ That does look unusual, I don't remember seeing anything like that before.

I'm sure a resident exhaust expert will have it ID'd.

[marcus57]

DM seemed to think it could be an early two brothers system , hopefully a decent clean and fit it to the track bike.

[Cammo]

DM seemed to think it could be an early two brothers system

Yes the rear exhaust headers look to be a similar design.

[marcus57]

system arrived today , looks like its stainless , will try to get into the garage to give it a quick wipe down to see.

[NGneer]

I don't have this anymore - but was never sure what it was. Anyone got any ideas?








Oh and if anyone knows of an SP1 style system up for grabs..........give me a shout