I would recommend rejetting the needles or raising them up into the piston
a-bit.
My R16 would not rev past 5k after I changed air filter to K&N's w/ velocity
stacks.
I put in a richer needle profile and she revs up to redline no problem.
Results from pulling the choke is tha same as yours.
I also had it backfires from leaning out as well before changing needles.
Steve
> Date: Mon, 19 Apr 2010 03:03:00 GMT
> From: "shas1983@netzero.net" <shas1983@netzero.net>
> Subject: Re: [Roadsters] Roadster cuts out at 3k rpms
> To: pat@hornesystemstx.com, datsun-roadsters@autox.team.net
> Message-ID: <20100418.200300.7519.0@webmail18.dca.untd.com>
> Content-Type: text/plain; charset="us-ascii"
>
> Confirmed fuel starvation. All ignition items check. Timing is good. No
vacuum
> leaks.Perfect fuel pressure. Engine will climb past 3000 if I pull the
choke
> full lowering the jets.
> Pulled the screens at the floats. Cleaned them, but they we not bad. I
think
> my floats are not set correctly. My float bowls have what I believe are
called
> gross jets. These have a ball valve instead of the normal pin. They flow
more
> fuel but seem to close a bit quicker than the pins. Does anyone know if
they
> need to be set differently than the normal floats?
> Thanks
> Jon Carlisle
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