SV 650 1st Gen Superbike

Yep, there's another set of 41's on it now.

 

Ok thanks. I'll try to give you a ring tomorrow.

 

Stock vacuum pump has trouble keeping up on long straights with 41mm carbs.

 

First time I've ever heard of that. Maybe you had a slight vacuum leak? The OEM pump keeps up even on my Z built 2mm over

 

Anything is possible. Mine was a 3mm over with oversized valves, ported heads, spears cams and ram air. I also used a pingel high flow petcock. Bike made 94hp on the local dyno.

 

Mine has two stock vaccuum pumps but I'm wondering, Focker, if that is simply causing a choke point in front of the pumps? I suppose the diameter of the petcock might be the limiting factor? Does the fuel pump "push" more fuel through than a vaccuum pump would "pull"?

Edit: To be fair to others in the for sale section, I would like to continue the carb talk in my tech thread started a while ago:

http://forums.13x.com/index.php?threads/keihin-carb-issues.334486/

If you have questions regarding the bike, feel free to pm or post up here.
Thanks
Vance

 

Hey....very interested but need to hear more about the motor build and last time it was re-freshed? Did Greg (Spears) build the motor? Bodywork?? spares?