L-jet over rich

[sjacobs914 at juno.com]

Thanks to all that have responded, I have ordered a new flapper valve,
mine has a resistance of 1500 - 4000 Ohms on Pins 6&9 of the harness.  It
is supposed to have 200-400 Ohms. Also the reading was jumpy and none
linear.  Which may explain why I could set it up for one RPM range, but
not the interior power band.  And since this is the major source for
determining pulse-width, I can see why I am running rich.  Higher number
longer pulse-width, with those numbers if it is a linear setting, my
pulse would be 10X longer than needed.

Also I know someone fiddled with it, duct tape a tell tale sign of a hack
job.  Yes I know duct tape has its uses, including as field band aids,but
a silicone sealer worked better at this particular situation.

Take care,
Stephen Jacobs
SJacobs914 at Juno.com -- or -- 102036.2004 at Compuserve.com

On Sun, 14 Sep 1997 21:56:17 +0800 "Wilman Lee" <wilmam at hkabc.net>
writes:
>
>
>----------
>> From: sjacobs914 at juno.com
>> To: diy_efi at coulomb.eng.ohio-state.edu
>> Subject: L-jet over rich
>> Date: Saturday, September 13, 1997 11:08 AM
>> 
>> Hello all,
>> 
>> I am trying to get a 74 914 with L-jet thru emissions.  And we are
>> running rich, really rich.  I have checked out every component of 
>the
>> system, they are all fine.  But I have playied with the air flow 
>meter. 
>> I notice if I hold back the plate physically I am running in the 
>right
>> ball park.  Is there a way of adjusting the flapper so more 
>resitacance
>> from the spring is provided? 
>Open the top plastic cover and adjust the flap spring tension 
>underneath.
>
> I have not hooked up the CO2 meter yet,
>> don't need to as much black smoke that pours out the tail pipe.  It 
>is a
>> visual thing.  Please help me with this one.
>> 
>> Once past the test, this car wil be exempt then I will be build a 
>new
>> intake system and using a PEFI of homebrew.
>> 
>> Also I am looking for information on someone building a direct 
>ignition
>> system.  I have seen the stuff on the DTI-EFI web site, but I am 
>looking
>> more for a premade kit.
>> 
>> Take care,
>> Stephen Jacobs
>> SJacobs914 at Juno.com -- or -- 102036.2004 at Compuserve.com
>