Scooterotica

Dan, Well done with the torque increase exactly where you need it!
What are your final port durations? And what about the jetting set up of your VHSH?

On my VHSH30CS I realised it wasn't running richer no matter how big the main jet, the DQ268 and K21 needle were not opening far enough at WOT. I had a spare K3 needle (1.5mm tip) so put that in on top clip and it was a bit spluttery at low rpm but high rpm jetted in well with a 160 main jet. Now really strong at high rpm again. I'm thinking a K31 should fix the low rpm running. Very interested to see what you have in yours

Looks like you got a good result there.
Did you try lengthening the pipe with a sleeve?

Spanish Fly wrote:Looks like you got a good result there.
Did you try lengthening the pipe with a sleeve?

Had a sleeve made, just need to get round to trying it on the dyno etc.......

Jack221 wrote:Dan, Well done with the torque increase exactly where you need it!
What are your final port durations? And what about the jetting set up of your VHSH?

On my VHSH30CS I realised it wasn't running richer no matter how big the main jet, the DQ268 and K21 needle were not opening far enough at WOT. I had a spare K3 needle (1.5mm tip) so put that in on top clip and it was a bit spluttery at low rpm but high rpm jetted in well with a 160 main jet. Now really strong at high rpm again. I'm thinking a K31 should fix the low rpm running. Very interested to see what you have in yours

I'll check on Monday when im back at work and let you know the carb settings........

Was this jetting ever confirmed? I ask as I too am in the situation of trying to jet a 30 VHSH and have found that many of the recommended needle and atomiser combos become a restriction to main jet flow, hence some places recommend a 130-140 main, whilst others are recommending 170+. It is the larger MJ recommendations that I'm finding are limited by needle tip/atomiser.

I'm happy to keep plugging away/adjusting/testing myself, however, it is interesting to see what others have already done.

Ta

Adam

Adam_Winstone wrote:Was this jetting ever confirmed?

All info on the dyno at Ripon and im not back there till Saturday now, will check then and post (unless i forget, which is highly likely - so keep pestering me! lol)

Will do.

Ta

Forgot the reminder yesterday

Sorry. Lol. Monday definitely!!

BUMP