January 5th, 2017, 06:17 AM
Joined: Nov 2001
From: Ely, England
Keihin FCR 44mm carb
I am having a load of the centre rings made for this carb that will allow 44mm.
basically, you can bore the start and finish of the carb to 44mm but the centre 'ring' won't take it. so I have designed this ring from scratch and I'm having them made. they should be at the Telford Show on the 18/19 February this year.
the problem is that the Pilot hole gets over exposed with the oriiginal set up, the centre ring can be lowered by 1.5mm but that exposes the PJ 'eye'.
I have got this down 1mm (as we speak, and we are still going for 1.5mm) which is getting there. the ring JUST fits inside the slide not only on the sides but on top too!
so much so that i'm having the ring strengthened not on the top or sides but in between just so it has some substance.
you can bore the carb out, anyone can. getting the carb apart and back together is a little harder!
not sure of price? about 48gbp in the EU and 40gbp outside each I believe? anyway, they will be here soon I hope!