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72_Glencoe

  • Karma: +0/-0
750 Holley running super rich
« on: June 01, 2015, 08:23:02 PM »
So i got the carb rebuilt. Holley 750 double pump. Slapped her back on. Standard air fuel mix. 2 an a quarter turns. I'm getting in burned fuel out the right header an black smoke out the left. Any ideas why?


72_Glen
SoCal Jet Boats
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TIMINATOR

  • Karma: +5/-0
Re: 750 Holley running super rich
« Reply #1 on: June 01, 2015, 09:58:59 PM »
fuel level or fuel pressure too high, lousy ignition, set idle mixture to about 3/4 turn, power valve too high for the cam, take two aspirins and call me in the morning  TIMINATOR
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TUFENUF MARINE PERFORMANCE  623-877-8553
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GT Jets

  • Karma: +192/-0
Re: 750 Holley running super rich
« Reply #2 on: June 01, 2015, 10:09:52 PM »
Quote from: 72_Glencoe on June 01, 2015, 08:23:02 PM
So i got the carb rebuilt. Holley 750 double pump. Slapped her back on. Standard air fuel mix. 2 an a quarter turns. I'm getting in burned fuel out the right header an black smoke out the left. Any ideas why?


72_Glen
SoCal Jet Boats

Start simple.

Have the floats been adjusted?

Can you adjust out the richness?

Does it only idle rich and cleans up when the engine is sped up?

Can you see fuel dumping down the throat?

Did it ever run correctly?

Who built the carburetor?

Does it have a power valve?

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Quote from: Brad @ SoCalJetBoats.com on December 22, 2009, 07:40:31 PM
If i get some free time tonight at work, ill play with it and post it for everyone to see.

Quote from: IRRebel on June 11, 2011, 07:30:45 PM
Time to man up and yank it John!  :banghead:
Ray

72_Glencoe

  • Karma: +0/-0
Re: 750 Holley running super rich
« Reply #3 on: June 08, 2015, 07:15:00 PM »
Got it squared away bud thanks for the response.


72_Glen
SoCal Jet Boats
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GT Jets

  • Karma: +192/-0
Re: 750 Holley running super rich
« Reply #4 on: June 08, 2015, 07:20:44 PM »
Quote from: 72_Glencoe on June 08, 2015, 07:15:00 PM
Got it squared away bud thanks for the response.


72_Glen
SoCal Jet Boats

That's it?

What was the issue?

Glad you got her figured out.

GT
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Quote from: Brad @ SoCalJetBoats.com on December 22, 2009, 07:40:31 PM
If i get some free time tonight at work, ill play with it and post it for everyone to see.

Quote from: IRRebel on June 11, 2011, 07:30:45 PM
Time to man up and yank it John!  :banghead:
Ray

72_Glencoe

  • Karma: +0/-0
Re: 750 Holley running super rich
« Reply #5 on: June 08, 2015, 08:50:11 PM »
Fuel air mixtures were  way off


72_Glen
SoCal Jet Boats
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72_Glencoe

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Re: 750 Holley running super rich
« Reply #6 on: June 18, 2015, 07:18:23 PM »
Back to square one. Went to free boat up. Hard to start. Leaking from accelerator pump. (Replaced that) idles rough. Still spittin fuel out exhaust. Any ideas?


72_Glen
SoCal Jet Boats
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GT Jets

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Re: 750 Holley running super rich
« Reply #7 on: June 18, 2015, 07:30:30 PM »
Quote from: 72_Glencoe on June 18, 2015, 07:18:23 PM
Back to square one. Went to free boat up. Hard to start. Leaking from accelerator pump. (Replaced that) idles rough. Still spittin fuel out exhaust. Any ideas?


72_Glen
SoCal Jet Boats

Who rebuilt this thing? Wile E. Coyote?
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Quote from: Brad @ SoCalJetBoats.com on December 22, 2009, 07:40:31 PM
If i get some free time tonight at work, ill play with it and post it for everyone to see.

Quote from: IRRebel on June 11, 2011, 07:30:45 PM
Time to man up and yank it John!  :banghead:
Ray

72_Glencoe

  • Karma: +0/-0
Re: 750 Holley running super rich
« Reply #8 on: June 18, 2015, 07:33:18 PM »
Gary bishop from R&G Motorsport out of long beach. Fuck tard is out of town


72_Glen
SoCal Jet Boats
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GT Jets

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Re: 750 Holley running super rich New
« Reply #9 on: June 18, 2015, 07:34:34 PM »
Quote from: 72_Glencoe on June 18, 2015, 07:33:18 PM
Gary bishop from R&G Motorsport out of long beach. **** tard is out of town


72_Glen
SoCal Jet Boats

Lol.

It is starting to sound like you may have an accelerator pump check valve issue.

GT
« Last Edit: June 18, 2015, 07:40:08 PM by GT Jets »
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Quote from: Brad @ SoCalJetBoats.com on December 22, 2009, 07:40:31 PM
If i get some free time tonight at work, ill play with it and post it for everyone to see.

Quote from: IRRebel on June 11, 2011, 07:30:45 PM
Time to man up and yank it John!  :banghead:
Ray

72_Glencoe

  • Karma: +0/-0
Re: 750 Holley running super rich
« Reply #10 on: June 18, 2015, 07:36:42 PM »
What's that run


72_Glen
SoCal Jet Boats
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