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Jetting 32/36Weber on ea81
Posted: Fri Oct 28, 2005 9:48 pm
by boowoogum
I have fitted a 32/36 Weber (off a Cortina) to the ea81 in my Manx style Beach Buggy. I can't get it to run smooth just above idle i.e. when driving at 60kmh (about 1500rpm). The engine is very stuttery. I have 65 primary idle jet and 145 primary main. Has anyone fitted a similar carb to their ea81 amd what jets were they using?
Posted: Fri Oct 28, 2005 10:02 pm
by smoov
according to the old printout of the carby guide from the old site, here are the following reccomendations for the EA81:
Subigiraffe's: prim main: 132, sec main: 130, prim air: 160, sec air: 165, prim idle: 50, sec idle: 55
(EA81, 2 1/4" zorst, emulsion tubes F66 x 2 (cortina carb))
Subanator's: prim main: 132, sec main: 130, prim air: 175, sec air: 135, prim idle: 55, sec idle: 50
(EA81...??? mods)
hope that helps
alex
Posted: Fri Oct 28, 2005 10:33 pm
by boowoogum
Thanks very much....I'm beginning to think there must be a problem with my carb. I've stripped and cleaned it a couple of times, last time professionally with little or no change. Similarly the jet changes I've made so far have made little difference.????? I'll keep lookingfor answers.
Posted: Sat Oct 29, 2005 4:49 am
by Fang
Check the primary idle jet is clear - and hasnt got anything blocking it. You might want to change the size of this jet and see what happens
Posted: Sat Oct 29, 2005 8:03 am
by subgiraffe
Check that the base of the carb is FLAT. If not, the motor will run lean and you will never get a good jet setting. With some fine water paper and a nice flat surface (or a piece of glass and some grinding paste) you can flatten the base to ensure an air tight seal against the manifold...
Posted: Thu Nov 10, 2005 12:19 am
by subanator