Mikuni 33 smoothbores - mains ?

[GregT]

Quick question - I've got a GS1000 here to which i've just fitted 33mm smoothbores (ex Canada). The jetting seems pretty well spot on in the lower ranges and it transitions well too but it's as rich as b...... up top.

Currently it's running #145 mains. K&N pods. 1075cc, stage 2 yosh cams and a quiet pipe.

My instincts say start around #130....what say the guys running these carbs ?

[49er]

Gidday Greg

See ya got some carbs for that 1000. I still haven't tried the Keihins out yet.

From past experience, you'll will be in the ball park with 130-135's.

[GregT]

Gidday Greg

See ya got some carbs for that 1000. I still haven't tried the Keihins out yet.

From past experience, you'll will be in the ball park with 130-135's.

Still in the market for those 31's...this bike would probably go better on them but these will do for the time being thanks.
I'm at around 475 meters altitude so it's probably aggravating the richness but you know it's rich when it accelerates when you roll back slightly...
And black....
The racebike with 33CR's and open carbs is running the equivalent of 125's, but it's flowing a lot more air.

[GregT]

130's were the answer...whole row of smiley faces.

this thing goes.....

Pic is prior to fitting the 33's.

[1_v8_merc]

I'm running 145's on my gpz1100, they work fine.
Luckily no bog or flat spots when you hammer the throttle.(which apparently is a huge problem on these carbs...they suck too much damn air?)