Must be jetting, I need help

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John Ghia
Posts: 7
Joined: Fri Oct 19, 2007 11:15 pm

Must be jetting, I need help

Post by John Ghia » Wed Sep 16, 2015 3:38 pm

I have a stock GD 2.0 liter with 40 IDFs
I adjusted the floats, 11 mm & 32 mm
fuel pump pressure is 3-3.5 psi

28 v
135 mains, but did the same with 115
200 airs
55 idle
50 pump

When it gets up to full throttle is dies and pops

I tried to post 2 videos, but it didn't work so here are the links:

https://youtu.be/WEiB5SzR6_Y

https://youtu.be/tI59yQ-mCKQ

any help would be appreciated

John Ghia
Posts: 7
Joined: Fri Oct 19, 2007 11:15 pm

Re: Must be jetting, I need help

Post by John Ghia » Wed Sep 16, 2015 3:40 pm

I rechecked the valves .006
and the motor likes 28 degrees total advance on the 009

letterman7
Posts: 484
Joined: Thu Mar 25, 2004 11:17 pm

Re: Must be jetting, I need help

Post by letterman7 » Wed Sep 16, 2015 3:48 pm

Might be leaning out at the upper end. Have you tried larger mains, like maybe 145-155? Reduce your pressure, too. 3psi is max for Webers.

John Ghia
Posts: 7
Joined: Fri Oct 19, 2007 11:15 pm

Re: Must be jetting, I need help

Post by John Ghia » Sun Feb 11, 2018 1:12 am

I forgot to update this thread and I dislike threads without resolution.
It ended up being valve float. I put a tach on it and relized it happened at 7000 RPM. Been running great since.

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dstar5000
Posts: 4445
Joined: Tue Feb 12, 2002 3:01 am
Location: Princeton, North Carolina

Re: Must be jetting, I need help

Post by dstar5000 » Mon Feb 12, 2018 11:16 am

LOL!
‎"Let me say it as simply as I can: transparency and the rule of law will be the touchstones
of this presidency,".. Barack Obama January 21, 2009, 30 minutes before he signed the law
sealing all his personal information....

udidwht
Posts: 160
Joined: Fri Oct 29, 2004 1:33 am
Location: PNW

Re: Must be jetting, I need help

Post by udidwht » Wed Oct 17, 2018 1:48 am

Too rich...

50 idles
120 main jets
200 air correctors
F11 tubes
28mm vents

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