Help Please - re-jet 454 merc carb
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Help Please - re-jet 454 merc carb
Below is a pic of the carb that I removed from my 92 Sleek, with a 454 merc. I believe it is stock - can someone please confirm. My question is that I bought the boat from Pheonix (1124 ft altitude) and now live in Calgary (3438 ft altitude). Can someone please provide me some guidance on how to re-jet this thing? First, where are the primary and secondary jets? Second, do both need to be replaced? Third, how can I tell what type fo jets I have now, and what type would you suggest I need?
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Planning to update that thread after re-jetting. Though for a quick update I'm now at 4200rpm steady at 45 mph, after replacing my cap and rotor. Still not where I believe it should be. But been told that the jets are a big factor.
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https://www.google.com/url?sa=t&sour...29Y3xAjkiJ-o9w
Check out the link to the pdf of the carb manual for edelbrocks. I believe they are the same carb. The secondary jets will have a number on them. The primary will be a combination of jets and rods. Take a look at the jetting charts, you want to go one lean on both cruise and power mode.
Check out the link to the pdf of the carb manual for edelbrocks. I believe they are the same carb. The secondary jets will have a number on them. The primary will be a combination of jets and rods. Take a look at the jetting charts, you want to go one lean on both cruise and power mode.
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From some googl'ing, I believe the stock merc carb that I have is made by Weber. I live in Calgary (a city with 1.1 million people), and not one shop sells jets and rods for Weber carbs. I tried the 4 marine dealers and every national brand auto parts store. I guess you need to live in a city with 2+ million to get stores to supply Weber parts. I think some of them say they do for Holley and Edelbrock. Can someone confirm if the jets and rods of these 3 makes are the same? Otherwise I'm gonna have to order it on-line and wait a week or two for one.
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