busa piston swap - work in progress

Originally Posted by Berlin

Are you haveing any crank work done to compensate for the lighter Busa pistons? Or is this not required?

I was under the impression that crank was balanced to Pistons and visa versa.

I remember changing some two stroke pistons and leaving the crank the same and you couldn't (literally) hold the bars over 5000 rpm. Even after crank work is was way buzzier than before the swap.

C

if they were any lighter then the crank would need doing, but apparently its ok without it done

well go a bit more done today

bike started out as a fully running and rolling minus the exhaust

......

i proceeded to strip it down



im dropping the swing arm off as well, but dont have a 19mm hex socket :/

its all a bit sh*tty



so far i have the air box off the TBs un hooked and the rear cylinder head off, rad off and other bits, will take the rear cylinder off tomorrow and then move on to the front, going to try and get the cylinders hone'd this week some time


valves dont look to good

so all the heads and barrells off yesterday cleaned chambers sorted the bike for the new pistons, just need to make a phone call and get barrel's honed and stick it all back together







also go a new clock bracket made that i designed







just sanded and primed it going to paint it black

Impressive, that looks really clean. But in the kitchen...

lmao thanks thats exactly what the gf said

[andrewsmith]

Has your mother not tried to kill you with a conrod yet?

That's what kitchens are for are they not? Food comes from takeaways.

Not meaning to derail, but quick question.
What are sv's meant to rev to? Mine's an 05 and I swear I've seen 12k+ when missing 1st to 2nd.

Man looking at those heads, I didnt realise how badly designed the intake route is, its a right bend the air/fuel has to go through from carb/injector to the cylinder.

[andrewsmith]

Originally Posted by reeder

Not meaning to derail, but quick question.
What are sv's meant to rev to? Mine's an 05 and I swear I've seen 12k+ when missing 1st to 2nd.

Limiter is around 11.5k redline 10.5k
You may have a one that slipped through the net