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How does one test the temperature?

Wonder if one way to rule out low pressure pump and pulse pump problem is fact that if you literally disconnected fuel line from pulse pump to vst, the engine...

I don't go above 40 mph or around 3000 rpms but lately due to my engine not being able to get on plane I've had to idle for a long time to get to my fishing spots. However I wonder if the plugs are...

My 200 hp 1999 optimax serial 0G945858 had the iridium ngk spark plugs IZFR5G and I swapped them out for the ngk laser platinum PZFR5f-11 ones which the service manual recommended. Has anyone...

Never tried blowing compressed air through the uptake line and will try. My fuel bulb never collapses and will remain hard after initial priming for the whole day while fishing. I have a 1999 200...

Any suggestion as to which one I should try to replace first?

Is that what is called the pulse pump?

Yeah I looked and there is a large nut below the t fitting which fuel delivery hose is attached. Very hard to get a wrench in there to losses. Was wondering if the t fitting can be unscrewed or do...

Is it possible to remove the take up line from the gas tank on my year 2000 201D cobra? I need to see if there is debris clogging up the fuel delivery system. I'm thinking maybe there is some sort...

I got a new belt and checked the tensioner which was ok. Took boat out this am and worked fine. Drove about 10 min and fished for about half hour. Started boat up and tried to get on plane and...

Thanks so much everyone for your very helpful suggestions. I was able to put the belt on this morning. The trick about rolling it over the air compresser was the ticket.

I got a torque wrench in inch pounds and it looks like my tensioner is putting enough pressure on the belt. I tried putting in the belt but I must have the wrong part cause it is impossible to slip...

My year 2000 cobra 201D came with an ez loader trailer dual axle. It has a ufp hub h-1377. Does any one know what size wheel bearing seal fits this hub? Thanks

Thanks. How can I tell when it contacts the physical tensioner dtop?

I have one. I put my torque wrench in the square peg and torqued it in the direction which takes the pressure off of the belt. Is the torque supposed to read 70 lbs? It only read about 10. If...

Can you please help me figure out how to remove and replace the belt? How do I know if the tensioner needs to be replaced? Thanks so much

I have a 1999 200 hp optimax on my year 2000 cobra 201d bass boat and want to test it under load vs just use hose ear muffs and rev it up. Is there a way to load test the engine without having to...

Engine is 1999 optimax 200 hp serial 0G945858 on my bass boat. I replaced the antisiphon valve on the fuel tank, along with the black fuel hose and grey fuel line with new bulb last year due to...

I have a year 2000 201D cobra bass boat At the beginning of spring when my gas tank is full, the gas always leaks out the gas cap a bit when I drive on an uphill incline. I can tell cause of the...

Turns out the water hose exiting the cowl was very flattened by the bunch of hoses that exit. Not sure how to remedy that but plan to replace the more supple and flexible tube with garden drip...

Gauge is zero when engine is off. I attached a hose to it after taking the existing one off, and tried to blow into it, and could make the needle move a little bit. I then started up the engine,...

Can I do this with a hose ear clamp attached to the lower unit or do I have to do this when running?

Thanks

Engine is 0G945858 optimax 200 hp 1999. Ran the boat today and towards end of the day my water pressure guagw stopped working despite water coming out strong out of the engine pee hole. Could my...

Took the boat out after replacing the antisiphon valve. Engine purred like it did when I first bought it and ran very smoothly. All these yrs the anti siphon gave me problems. I think the spring...

Thanks. I ended up taking off the fuel filter, and was able to pump fuel w the bulb until it came out the inlet tube to the fuel filter. I guess whenever installing new bulb line, to pump fuel to...

Engine is 1999 optimax 200 hp serial 0G945858 on my bass boat. I replaced the antisiphon valve on the fuel tank, along with the black fuel hose and grey fuel line with new bulb. I tried priming the...