Bought one of these last summer. It is a great motor. Starts easy, quiet and you can adjust rpms for trolling right down to 1.7mph . Easy on gas and won't weigh the back end of your boat down.You won't waterski with this motor but it delivers what it was intended to deliver. Another Yamaha quality product.
Can you use the variable trolling RPM switch to slow the RPM lower than the pre set idle speed of the motor or will that stall out the motor? In the video it looks like you are going quite fast for trolling then you demonstrate the switch. Please troll at idle speed and see if the boat slows down even more when the VTS switch is lowered. Hoping that will stop all that horrible vibration that you talk about and show at idle speed.
Bought this motor over the winter and just got thru break in. Replaced a 2004 2 stroke merc that was awesome when it would start, but left me stranded too many times. Getting to old to deal with that frustration, so forked out the $3600 for a modern motor. So far, the Yamaha starts immediately even in frigid WI spring walleye conditions, runs smooth, and sips gas. But that vibration at idle is very noticeable, shakes everything in the boat. Still, the confidence of knowing it will start and not leave me stuck at the landing or out on the water is a minor concession.
This review very much matches my experience with the F25. Just finished breaking in a 2025 F25SWTC on a 14' 1961 Crestliner Mustang. The boat (without motor) is about 330 pounds and made of fiberglass. I replaced a 40hp two stroke and didn't want to add 70 pounds to go with a 40 4-stroke but I did want a new Yamaha, so that drove the choice of the F25 (under 150 pounds with the options I have). At least in the U.S. buying a new 40hp two stroke isn't really an option, and to be honest I'm sick of temperamental two stroke motors. I don't pull skiers so I don't need the extra HP or torques. In any case, my fuel consumption is very much in-line with these projections, however my run speeds a bit different. I reach 25mph at around 5000 rpm not the 6 he reports. That's understandable if you consider the hull shape and differences in the type of boat. At that throttle I seem to use around 1.5 to 1.7gph. I also notice that I'm not seeing a lot more fuel use or speed going much above that RPM range. That probably means I could do better with a more aggressive prop pitch on a stainless after market prop, but I'm happy with what I've got for now. The strong vibration at low idle is absolutely real and very noticeable but does go away with a few RPMs.
hell ive got a 2010 f25 with a 9.9X12 pitch and a CMC trim unit with the big tiller. Its on a 1448 Grizzly tracker (HEAVY!) that has full fishing gear ( trolling motor, deep cycle, cooler, tackle, and me at 240lbs) mine runs 28-30 mph and with the 12 pitch it bangs rev limiter! these motors are capable of 30+ all day long. the biggest thing i did was raise the motor up. took quite a bit of up to get to the sweet spot. the bottom of my cavitation plate is roughly 4 inches above the bottom of my boat measuring off a straight edge. gotta play with props and mounting heights! my boat went from running 23 mph to 30 mph (30% increase) with just 2 small changes. and seeing as how im still on the rev limit im going up to a 10 1/8" X 13 Pitch stainless prop. more speed and more efficient!
Joseph Stewart Comment (removed) - Joseph, we're sorry we had to remove your comment, but as a matter of policy we remove those with profanity. We understand you'd be upset having problems with a brand new motor, and suggest that since you state it's new and you just bought it, you take it right back to the dealer, as it is covered under warranty. We wish you the best of luck.
Bought one of these motors on Monday, first time out it ran for 15 minutes and dies, limped back to the dock, took it back to the dealer and they put another new motor on. More to follow on this but even Yamaha isn’t exempt on lemons.
Can you use the variable trolling RPM switch to slow the RPM lower than the pre set idle speed of the motor or will that stall out the motor? In the video it looks like you are going quite fast for trolling then you demonstrate the switch. Please troll at idle speed and see if the boat slows down even more when the VTS switch is lowered. Hoping that will stop all that horrible vibration that you talk about and show at idle speed.
Hey Doug - according to Yamaha the range is 750 to 1050 rpm, including 150 sub-idle rpm. I didn't take it all the way down so I can't attest to the vibration level, but the vibrations I felt were worse at lower rpm than higher rpm. That said, I wouldn't call them "horrible," just maybe more than I would have expected and enough to make note of.
@@FishTalkMagazine for any future readers. I have this motor and can use the button to slow it down too slow for trolling without stalling. fabulous motor
The company I retired from bought 2 of theses 25 hp yamaha, Both had a dead skip at wide open throttle. My Buddy had the same problem. The dealer told him he was turning too many RPM's, My Honda and my Suzuki, when I hit the rpm limit, there was a constant stumble, not a one time skip. Also my company work boat was a 16 ft g3 with 3 men and lots of equipment the engine was doing all it could to plane the boat. My buddys boat was a 15 ft fiberglass, with two men in it his engine was also struggling to plane,. I think this is a very over priced engine that will not compare to the 3 cyl 25 hp engines out there, no matter how much they soup up their 2 cyl engine. I own a 2021,50 hp , made in CHINA , Mercury......I would never have bought it if I knew that. I have replaced the lower unit already. I own a 2022, 25 hp Suzuki power tilt and trim, electric start, rope start, tiller ......I Love it !, and it was thousands less than a Yamaha.
all of these engines need to be properly propped. you should never be hitting the limiter. This is 3 cases of straight abuse for these engines. prop them so the engines run wot at 5700 rpm and they will work flawless.
Just as long as the capacity plate shows 25+, you'll be fine! If the capacity plate isn't still there or is unreadable, you should be able to find the spec on Google. Note that they did build some 16' "Panfish" models with max capacity of less than 25, so it's definitely worth a check.
@@FishTalkMagazine I have a old johnson 40 on it now and it is just old and tired, tilt don't work right manually it does but holy cow, and its time to upgrade.
@@clubmike2910 if your boat handles a 40 I would go with the 40. depending on the weight of your setup the 25 will act like a 25. it will struggle and never act like a 40. I have the 25 and my setup is heavy so I had to down pitch to get the f25 to run in its sweet spot and now my top speed is around 21mph at wot and 14mph at cruise. if I had the 40 I would cruise at 21mph and top put at 31mph
Yamaha no longer officially attaches model years to their outboards, but that F25 was introduced to the press in September of 2017 and became available to the market soon after.
FishTalk Magazine my new F25 came with a 9 7/8 by 11 1/4 stock? I think the pitch is to high because I am only able to get 5300 rpm at wot and my boat is a small 14’ Lund WC, I am going to drop to a 10” pitch hoping to get the rpm up a bit
Hey Joey - you're right and it can be, but it's a tiny fraction of the hassle of ethanol with carbureted engines. In fact, we've found that if you go to EFI and use a quality stabilizer, the issues are commonly a thing of the past.
@@FishTalkMagazine what's up my brother I hear what you're saying but me as a marine technician the ethanol affects the hoses filters Peter etc they've been many engines that I took apart and seen ethanol coating it's not just the fuel injectors or the carburetors
@@joeyjoe8892 We agree on the Star Tron, it and also Techron have proven to be very effective in our experience! We also love Formula X2, when it comes to getting water out of the fuel. Sorta makes you wonder why they can't just make the fuel better, in the first place...? Oh yeah... ethanol...
Bought one of these last summer. It is a great motor. Starts easy, quiet and you can adjust rpms for trolling right down to 1.7mph . Easy on gas and won't weigh the back end of your boat down.You won't waterski with this motor but it delivers what it was intended to deliver. Another Yamaha quality product.
Can you use the variable trolling RPM switch to slow the RPM lower than the pre set idle speed of the motor or will that stall out the motor? In the video it looks like you are going quite fast for trolling then you demonstrate the switch. Please troll at idle speed and see if the boat slows down even more when the VTS switch is lowered. Hoping that will stop all that horrible vibration that you talk about and show at idle speed.
Bought this motor over the winter and just got thru break in. Replaced a 2004 2 stroke merc that was awesome when it would start, but left me stranded too many times. Getting to old to deal with that frustration, so forked out the $3600 for a modern motor. So far, the Yamaha starts immediately even in frigid WI spring walleye conditions, runs smooth, and sips gas. But that vibration at idle is very noticeable, shakes everything in the boat. Still, the confidence of knowing it will start and not leave me stuck at the landing or out on the water is a minor concession.
This review very much matches my experience with the F25.
Just finished breaking in a 2025 F25SWTC on a 14' 1961 Crestliner Mustang. The boat (without motor) is about 330 pounds and made of fiberglass. I replaced a 40hp two stroke and didn't want to add 70 pounds to go with a 40 4-stroke but I did want a new Yamaha, so that drove the choice of the F25 (under 150 pounds with the options I have). At least in the U.S. buying a new 40hp two stroke isn't really an option, and to be honest I'm sick of temperamental two stroke motors. I don't pull skiers so I don't need the extra HP or torques.
In any case, my fuel consumption is very much in-line with these projections, however my run speeds a bit different. I reach 25mph at around 5000 rpm not the 6 he reports. That's understandable if you consider the hull shape and differences in the type of boat. At that throttle I seem to use around 1.5 to 1.7gph. I also notice that I'm not seeing a lot more fuel use or speed going much above that RPM range. That probably means I could do better with a more aggressive prop pitch on a stainless after market prop, but I'm happy with what I've got for now.
The strong vibration at low idle is absolutely real and very noticeable but does go away with a few RPMs.
Thanks for the rundown, very cool additional intel!!
hell ive got a 2010 f25 with a 9.9X12 pitch and a CMC trim unit with the big tiller. Its on a 1448 Grizzly tracker (HEAVY!) that has full fishing gear ( trolling motor, deep cycle, cooler, tackle, and me at 240lbs) mine runs 28-30 mph and with the 12 pitch it bangs rev limiter! these motors are capable of 30+ all day long. the biggest thing i did was raise the motor up. took quite a bit of up to get to the sweet spot. the bottom of my cavitation plate is roughly 4 inches above the bottom of my boat measuring off a straight edge. gotta play with props and mounting heights! my boat went from running 23 mph to 30 mph (30% increase) with just 2 small changes. and seeing as how im still on the rev limit im going up to a 10 1/8" X 13 Pitch stainless prop. more speed and more efficient!
Joseph Stewart Comment (removed) - Joseph, we're sorry we had to remove your comment, but as a matter of policy we remove those with profanity. We understand you'd be upset having problems with a brand new motor, and suggest that since you state it's new and you just bought it, you take it right back to the dealer, as it is covered under warranty. We wish you the best of luck.
Bought one of these motors on Monday, first time out it ran for 15 minutes and dies, limped back to the dock, took it back to the dealer and they put another new motor on. More to follow on this but even Yamaha isn’t exempt on lemons.
That's really odd!! Please update us and let us know what happened & what happens next!!
FishTalk Magazine Got my boat back with another new F25, they will not tell me what went wrong!!! More to follow.
@@johnnash7481 did this ever get solved
Can you use the variable trolling RPM switch to slow the RPM lower than the pre set idle speed of the motor or will that stall out the motor? In the video it looks like you are going quite fast for trolling then you demonstrate the switch. Please troll at idle speed and see if the boat slows down even more when the VTS switch is lowered. Hoping that will stop all that horrible vibration that you talk about and show at idle speed.
Hey Doug - according to Yamaha the range is 750 to 1050 rpm, including 150 sub-idle rpm. I didn't take it all the way down so I can't attest to the vibration level, but the vibrations I felt were worse at lower rpm than higher rpm. That said, I wouldn't call them "horrible," just maybe more than I would have expected and enough to make note of.
@@FishTalkMagazine for any future readers. I have this motor and can use the button to slow it down too slow for trolling without stalling. fabulous motor
whats the oil filter are you using , Im thinking to get a box of Fram PH 6017A
Stock Yamaha, that was a new motor.
The company I retired from bought 2 of theses 25 hp yamaha, Both had a dead skip at wide open throttle. My Buddy had the same problem. The dealer told him he was turning too many RPM's, My Honda and my Suzuki, when I hit the rpm limit, there was a constant stumble, not a one time skip. Also my company work boat was a 16 ft g3 with 3 men and lots of equipment the engine was doing all it could to plane the boat. My buddys boat was a 15 ft fiberglass, with two men in it his engine was also struggling to plane,. I think this is a very over priced engine that will not compare to the 3 cyl 25 hp engines out there, no matter how much they soup up their 2 cyl engine. I own a 2021,50 hp , made in CHINA , Mercury......I would never have bought it if I knew that. I have replaced the lower unit already. I own a 2022, 25 hp Suzuki power tilt and trim, electric start, rope start, tiller ......I Love it !, and it was thousands less than a Yamaha.
all of these engines need to be properly propped. you should never be hitting the limiter. This is 3 cases of straight abuse for these engines. prop them so the engines run wot at 5700 rpm and they will work flawless.
Can I put one of these on a 1989 sweet 16 tracker? the boat weighs 575# so plus me and gear.
Just as long as the capacity plate shows 25+, you'll be fine! If the capacity plate isn't still there or is unreadable, you should be able to find the spec on Google. Note that they did build some 16' "Panfish" models with max capacity of less than 25, so it's definitely worth a check.
@@FishTalkMagazine I have a old johnson 40 on it now and it is just old and tired, tilt don't work right manually it does but holy cow, and its time to upgrade.
@@clubmike2910 Oh heck, then you should be fine!!
@@FishTalkMagazine Thanks dude
@@clubmike2910 if your boat handles a 40 I would go with the 40. depending on the weight of your setup the 25 will act like a 25. it will struggle and never act like a 40. I have the 25 and my setup is heavy so I had to down pitch to get the f25 to run in its sweet spot and now my top speed is around 21mph at wot and 14mph at cruise. if I had the 40 I would cruise at 21mph and top put at 31mph
Wish you could explain more
Ill explain more when i call tomorrow, holiday today.
What year model is that?
Yamaha no longer officially attaches model years to their outboards, but that F25 was introduced to the press in September of 2017 and became available to the market soon after.
Can you tell me what prop size comes standard on F25?
Hey John - 9 7/8" x 10.5" aluminum three-blade.
FishTalk Magazine my new F25 came with a 9 7/8 by 11 1/4 stock? I think the pitch is to high because I am only able to get 5300 rpm at wot and my boat is a small 14’ Lund WC, I am going to drop to a 10” pitch hoping to get the rpm up a bit
my new F25 came with a 9 7/8 by 11 1/4and runs with 5'900 rpm no load in the boat.
@@aaronstarlund8450 ko
Motor dos meus sonhos.
Ethanol is still an issue on efi
Hey Joey - you're right and it can be, but it's a tiny fraction of the hassle of ethanol with carbureted engines. In fact, we've found that if you go to EFI and use a quality stabilizer, the issues are commonly a thing of the past.
@@FishTalkMagazine what's up my brother I hear what you're saying but me as a marine technician the ethanol affects the hoses filters Peter etc they've been many engines that I took apart and seen ethanol coating it's not just the fuel injectors or the carburetors
@@FishTalkMagazine startron will definitely eliminate 95% of those issues
@@joeyjoe8892 We agree on the Star Tron, it and also Techron have proven to be very effective in our experience! We also love Formula X2, when it comes to getting water out of the fuel. Sorta makes you wonder why they can't just make the fuel better, in the first place...? Oh yeah... ethanol...
@@FishTalkMagazine you know what down here in Florida they make non ethanol fuel and for some reason I just don't trust it