Mark,
If you have still got the problem after doing as Richard says below.
Then next step would be to look at needle and seat and float. I use 2.25
needle and seat in my 2x 45 weber L20B.
I would then try one size richer fuel jet and or smaller air jet.
Regards
Trev
-----Original Message-----
From: Richard Clough [mailto:[EMAIL PROTECTED]]
Sent: Tuesday, 24 July 2001 22:02
To: [EMAIL PROTECTED]
Subject: Re: Engine Problem
Sounds like fuel starvation. After you have been accelerating hard for some
time, you may have lowered the fuel level in the float bowls. Check the fuel
flow from the pump to the carbs.
----- Original Message -----
From: Mark <mailto:[EMAIL PROTECTED]> Alford
To: Ozdat discussion list <mailto:[EMAIL PROTECTED]>
Sent: Tuesday, 24 July 2001 12:48 PM
Subject: Engine Problem
Hi All,
Looking for help in tracking down a missfire in my FJ20 non turbo. Currently
running a stock motor with twin 45 webbers, rejetted to suit, electronic
ignition, electric fuel pump.
So far we have replaced the leads, coil, dizzy cap, rotor button and plugs,
but still we have an intermittent missfire above 5000rpm.
It is mainly noticable under load for example in third gear above 5000rpm.
When the missfire does clear it is normally in top gear at the end of the
main straight at Oran Park. Does anyone have any ideas what may be causing
this prob.
All ideas/help appreciated
Mark.
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