I GIVE UP....!!!!

[bluelighttaxidriver]

Can anybody suggest anything before I throw these bloody Kadrons in the bin...?!!
Got the mixture spot on. Got the idle spot on. 55 idles, 135 mains, 28mm venturis. Fuel pressure set at 1.5psi.
Idles lovely. Crisp when blipping the throttle. Just will not hold revs when held open. Feels starved. Timing/valves/plugs spot on. Electronic ignition. Float chambers have plenty of fuel in.
Totally cleaned the carbs multiple times....
Anybody....? Please....!!! :-(

 

[bertiethebus]

I'll hold the bin lid open for ya :lol:
Seriously though i'd take it to a specialist on carbs

 

[john the horse]

mine are ok but due the nightmare of adjustment , mine will be for sale or in your bin when mrs horse lets me have sum webbers!!

 

[dna]

try upping your fuel pressure, sound like there's not enough fuel in the float chambers on open throttle

 

[sparkywig]

try upping your fuel pressure, sound like there's not enough fuel in the float chambers on open throttle

I did suggest this before....

 

[bluelighttaxidriver]

Been varying fuel pressures, but no change. Think I may have cracked it though. On the kaddieshack website, they have a component breakdown diagram. Will try to link it. Appears I'm missing item 3 - Annular discharge booster, from both carbs. Looks like they link in with the main jet circuit somehow. Would that account for my lack of fuel under load...? Obviously going to order them anyway, just be good to know I'm not throwing them in the bin just yet.....

 

[Charlie Bubbles]

Are you running an electric fuel pump?

 

[bluelighttaxidriver]

Running a fuel regulator & std mechanical pump, as per advice. No problem there at all. Had an email back from Kaddieshack (v. helpful). Apparently the missing bits are my problem, & was amazed they ran at all. Set up must have been spot on.... . Ordering them on payday....

 

[Charlie Bubbles]

I swear once you get em dialed in you may wonder what took so long to change from stock. VW Engines Love dual carbs.