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good day. I'm considering a 20hp 4 stroke tiller on my 14.5ft fishing boat. total weight for boat plus people/gear/batteries/motor etc is likely over 1100lbs. rated for 30hp. Would a 20hp plane this setup and what kind of top speed would it get?
Thanks
I got an aftermarket water pump kit and it appears the housing is slightly higher and the rubber grommet that went ontop of the housing doesn't fit now. did they update the design to not need the grommet? concerned about a good seal from the housing to where it mates with upper half of motor...
im going to order a seal kit for my late 90's johnson 25hp 2 stroke. is there instructions on how to install the seal kit? not sure how difficult this is or anything to watch out for.
Thanks
Good morning.
Picked up a late 90's Johnson 25hp that appears to have gas going into the oil injection tank. From what I understand, something has failed on the fuel pump/diaphragm which is causing this.
Compression is 90psi on all 3 cylinders cold (don't want to run it until issue fixed), so...
Does the fuel pump on these models have enough strength to tie into an under floor gas tank? I'm thinking of scrapping the portable tank and tying into my main tank, but wasn't sure if the longer run and gravity would play a part with these smaller motors' fuel pumps.
thanks
I've noticed that pulling the fuel line off and letting the motor run the carb dry after each use really helps on starts - usually starts 1 or 2 pulls every time.
I'm wondering though, as it didn't do this when I wouldn't drain the carb - why does it do this? I'm questioning if the carb floods...
I had the 9.8 out for a ride and pulled the plugs. They seem a bit white but both have similar color. I'm just wondering if I might need to clean the carb. Do you think they look a little on the lean side? Oil level is 3/4 full and compression is good and tight on both cylinders.
Re: Prop for 9.8 Tohatsu 4 stroke based on my setup and RPM readings
Hole shot isn't really a concern as the 9.8 will never plane the boat, but I want to get as much top speed as possible and have to take into account it could be 1-3 persons in the boat. So aiming for 6000 solo would be the...
took the 9.8 out for a run the other day on my 1500lb boat.
Looks like I'm getting about 4000-4200rpm at full throttle. The prop says F8.5 so I'm guessing its the stock 8.5D 8Pitch prop on there.
Based on my readings above and weight of the boat, what prop would best suit my setup? I am hoping...
I have a 50hp merc 4 stroke and am currently running the Merc Outboard 25w40 synthetic blend oil. I've heard that regular 25w40 oil isn't recommended to use when its colder than 4c. I'm not sure if being synthetic helps with the temperature range.
Reason being might want to go on one last trip...
Hi all does anyone know if the tilt bracket on the 9.8 mfsa3 should be spring loaded? Its the mechanism with the side handle to latch the motor right out of the water.
It automatically locks into shallow water mode (i can see the spring on the bracket) but the full up position isn't locking...
Hello,
Does anyone know if its possible to convert a newer 2007 Merc 9.9 tiller shifter to a side shifter or front shifter? Don't really like the idea of the shifter built into the tiller throttle.
I see a few part numbers but they don't list specifically if it will work on the 9.9...
Guys I'm after a Tohatsu/Nissan 9.8 and was wondering if there has been any major changes since 2007. Looking at these years and above and if there are any main differences I'd like to know them.
Otherwise these are a solid motor correct?
My boat is around 15yrs old and notice the fuel lines are permeating pretty bad. No signs of cracks but was wondering how often the hoses should be replaced on the tank and fuel feed lines?
I have a carb'd 50hp merc and notice the fuel bulb loses prime fairly quickly after priming it up....whether starting it or not. After priming up I notice I can hear a hissing noise from the fuel pump on the motor where the in/out hoses go. Can't see any gas leaking and the gasket seems tight it...
I currently have a longshaft kicker that sits on the side of my boat. My main motor is a long shaft.
The way the "V" is on my boat, where the kicker sits is only about 16 to 17'' from top of transom to the bottom of boat.
I'm wondering, would I be experiencing significant performance loss with...
Hi I'd like to see if I can find a product that can raise the transom for a kicker motor (needs to go up 5 inches.
Is there something that can just clamp to the transom and raise it (motor is 60lbs)?
Would like to avoid drilling through if possible.
Thanks!
Re: 6hp 4 stroke vibration
Here's some pics of the motor mounts (a bit of grease on there). The one bolt to the left of the grease nipple was loose.
The tiller handle bushing is definitely sloppy, when its down and I press on it it gives quite a bit. The two small bolts inside the cowling on...
I have a 6hp 4 stroke mrcury and I notice it really vibrates on my boat at all speeds (worse at higher speeds it seems). Its too the point where it shakes the whole boat and my hand is numb from holding the tiller. Afterwards noticed one of the bolts was loose down by the release mechanism (1 of...
