Author Topic: Jets...  (Read 1100 times)

Offline njh1

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Jets...
« on: February 02, 2021, 05:04:43 AM »
Hi all.

I have a Marine Quad from a 7.4 and it's going on my 5.0 GM. I think i need to re-jet but have no experience of how far to jump in jet size as a start. re-build kit will be ordered too.
I appreciate i might not have to re-jet at all but I am keen for anyone's experiences.

I believe the jet size is currently #68.

Thanks in advance.

Nick.

Offline Kenth

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Re: Jets...
« Reply #1 on: February 02, 2021, 07:02:19 AM »
What number on carb?

Offline Cliff Ruggles

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Re: Jets...
« Reply #2 on: February 09, 2021, 04:00:16 AM »
No problem, I can put together a rebuild kit with tuning parts for any part number.  Marine carbs are special units and not calibrated the same as automotive carburetors.  The good news is that there are only a couple of varieties and the major difference between them is very minor whether they were used on small block or big block engines.......