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BOATING Q & A

Yamaha 115 two stroke diameter prop?
what diameter prop should i use for my yamaha 115 two stoke. and what would the diameter change as far a performance

I have a chip on 2 of the blades on my prop, do I get a new one?
I have a small chip , no more than a 1 cm or so... there is 1 chip on 2 blades.. it is on a new 3.5 mariner outboard, with the plastic prop..is it worth having replacement?Im taking it for its 1st service soon, so they may pick up on it...?any idea of cost of prop?Thanks

90 hp Johnson outboard revs higher since rope got stuck in prop?
I am looking to find out if anyone knows what I may have damaged. It use to max at about 5k rpm. Today, it was going to about 6500 rpm but the boat is not going any faster. Does anyone know if there is a shear pin gear behind the prop that might be causing this. THe boat starts and runs with no issues, just running higher rpm's

What size prop should I use for my boat?
I've got an 18' bay liner with a 120 hp outboard engine. I usually use it to travel down steam to fish and also to wake board. Right now it has a 12.75 diameter with a 21 pitch prop on it with 3 blades. It has plenty of power getting it up to plane and will go about 45 mph. The downsize is that my gas mileage is absolutely horrible. I'm using about 3x the amount of gas of everyone else. My prop recently got damaged and I'd like to get one that will increase my efficiency on gas while remaining useful for what I do. What would you recommend? I could probably get a slightly larger diameter prop as well. Thanks

I have a Mercury 2.5 (boat engine), The prop stopped spinning properly, with the engine running?
Last night while out on my boat the engine was started again after going down the river a mile or so. but we was not going anywhere working fine till this point , I checked for any rubbish on the blades prop and found that the prop was spinning freely, as apposed to normally it is tight to turn. the prop was not lose and attached like normal the pins where in, when the motor is started it spins but at such a low rpm it wont push a paper boat, when reved up a little it creates a bit more smoke more than i would like so i turned it off completely, the fuel mixture is correct. after switching everything off and checking with no clue every part i could see to make sure there where no obvious faults the prop was tight again I put it in the water and got it home.. while carrying the engine back home the prop was stiff as usual and was being normal. however when i arrived back it was lose and free spinning once again..i did not knock it or anything and was carried in the upright position. Im certainly not an expert but have no idea why this is occurring? It is hardly used when i got it. any help would be great thanks, I don't have the money to take it somewhere I will have to learn and do it my self thanks in advance.here is the model if it helps google.co.uk imgres?imgurl defender.com inflatables outboard project mercury mercury 2 images merc2 5.jpg& imgrefurl defender.com inflatables outboard project mercury mercury 2 merc 2 5.html& h 300& w 185& sz 7& tbnid nc uhKNNw9QS0M & tbnh 116& tbnw 72& prev images %3Fq %3Dmercury %2B2.5& usg axUeFw839IjSMXd6ufLAZ6wIBX4 & sa X& ei Dz5ZTKuEComi0gTWkKHmCA& ved 0CDoQ9QEwBgThanks so much found a nice website now on what the hell im doing and how to fix it step by step it also describes my problem perfectly ahhh my heart nearly stopped. thanks will

What is correct prop depth for outboard motor?


What size prop is optimal for my boat it is a 1995 crownline 266 br with a 7.4l?


1979 Mercury Thunderbolt 500 50hp prop size?
The motor is mounted on a 17f sears runabout. I need to know what size pitch I should use.I ment 1975

Will a damage prop cause you to have slow hole shot?
I messed it up at the dock. I didn't pull the motor up so all three blades lost but it was evenly lost. Does anyone know what kind of prop I should be looking for, size and all? It is a 125 force 89 model?

How do i remove my prop on my 115 mecury outboard 2001?
I see there is a star with 8 pins looks like 2 are keys.

What size outboard propeller should i get to match this number on the prop 816704a40p13?
i see on the bottom of the gear housing a sticker that says 12 X 22. i would assume that means a 12" diameter, with a 22" pitch. however everything i see online says the prop is 13" pitch???thanks for the answers guys. i didnt think it had a 22" pitch, but wanted to be sure. thanks again.

Merc 9.8. prop I noticed that it would slide back and forth?


What is the lower pee hole behind the prop on a 2002 mercury 125 outboard?
when i run the water muffs on my motor i get the usual pee stream up top but i also have one down low behind the prop.

I have a 2000 rinker 232 capitiva boat about props?
i have a 2002 rinker 232 capitva boat it has a 305 im wanting to install a stainless still prop for it can you tell me what kind would be good for this boat

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