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if its grinding, something is wrong. could be PDS shaft, most likely its u-joints and upper gear box pull it before you end up spending many many thousands in repair.

most likely exhaust manifold is rusted thru and leaking into center cylinders, or you blew the head gasket. do you boat in salt water? time to do a leak down test, then start fixing.

i should clarify. the k.brevis algae that causes red tide is natural. however the red tide blooms are triggered from large amounts of food for this algae, the most significant is man-made pollution and run-off

without a fuel flow meter, we are all guessing. as dingbat pointed out, minimal effect can be gained fuel economy in a boat is literally an oxymoron. since the load, weight, balance, throttle position, trim, RPM, wind, current, etc all impact fuel consumption, you are trying to hit a moving...

Also, what is your compression numbers?

Pull the drive and look

Check the accelerator pump

I just rejetted my holley carb in about 20 minutes. Holley carbs are easy to work on

They ate not hidden. Fuse and relay are clearly marked in the electrical schematic in the manual. I believe also on the cover of the fuse block

I would do a leakdown test first, that will tell you what is wrong prior to pulling the head

Your boating season is done. If there is a hole in the piston, wont take long before block fills with enough fuel vapor to blow up

Dos ceveza por favor

You need to set the choke just like a 1970s truck. You need one full pump forward to prime and allow the choke to close. The throttle needs to be partially open as there is no fast idle cam. Then as you are running, the toaster element in the choke slowly opens the choke Your hot flooding...

No, there are no fast idle cams on boat carburetors. Thus is done for a reason How are you setting the choke?

I would pull the carb and spend the $40 on new gaskets and go thru the carb

GIBSON BOATS MIC: GBP Status: Inactive Company: GIBSON BOATS Company Official: BRUMMET III, BILL DBA Parent MIC: Past Company 1: GRUMMAN BOATS INC (OOB) Past Company 2: MARATHON BOATS Past Company 3: GRUMMAN ENERGY SYSTEMS...

GBP GIBSON BOATS 130 DAVIS STREET PORTLAND TN

well, the crud that was in your tank is now in your anti siphon, fuel pump and carb. that 1/4 tank of varnish sludge got broken up into floating bits of crud by you adding isopropyl alcohol. then you added good fuel to that to have a tank full of floating crud fuel. check the strainer in the...

yes think of trying to spray pudding. that is what gel is. to get it to spray, you have to thin it to at least the consistency of store bought gravy

youre right, for some reason I called it Whiskey D's...... LOL could be confusing it with Joey D's chicago pan pizza