I had an unusual issue this yer when running my 6hp Yamaha w/remote tank. I do the maintenance as you describe, change the fuel filter and have replaced the impeller componets once (spring 2022). This summer it would start fine and after a few minutes, it would miss and get progressively worse then stall. I could restart it immediately and the same behavior would repeat after a few more minutes running at speeds just above the start indicator on the tiller handle. I found I could prevent stalling out by quickly dethrottling and returning to the original position. I removed the plug and cleaned/gapped it, but it didn't need much adjustment or cleaning. I was thinking I may have had a bad tank of fuel. So I dumped it in my car and refilled the tank (always use ethynol-free in this motor). I took it out yesterday and it stalled out once again, then had a few misses as I continued. After a few minutes, it ran great on the remainder of the 20 minute run to the ramp. When I got home and flushed it in a barrel, it seemed to be fine, but is hard to tell running at low speed in gear while in the barrel. Do you suppose there was some moisture in the fuel line of the motor or the fuel filter and it eventually cleared out with the fresh gas? Is there something else in the ignition system that might cause a miss and then it clears up? Thanks for the informative video!
Hi, thanks for the comment. Funny you should mention this, I had this issue when I first bought the motor. I believe mine was down to some old gasoline. I had some stabilized gas sitting for the winter and threw it in the built in tank at the start of the season, it behaved similar to as you described. I ran the motor dry and added fresh zero ethanol and no problems since, so I was convinced it was the fuel. I did have an old Lund with a Mercury 9.9 years ago that was doing it and it turned out that it was sucking air in through one of the fuel line fittings. Sounds a lot like yours may be sucking air when it’s demanding more fuel at higher speeds? I only use the built in tank, apart from the one issue so far so good. Hope you get it figured out…
@everything.outdoors hmmm...have to check that. Mine turn and sort of screw on. I did have an issue today with the hose...pit it on the tank with the primer bulb closer to the tank...couldn't get it to prime, then switched ends and it worked as expected. Later read the owners manual - there is an arrow on the bulb that I missed! I think I'll change out the fuel filter and give it a trial! I do run it dry after shutting off the gas, but I suppose there could be a bit of gas and maybe a small amount of condensation from the moisture in the air...it does sit adjacent to the water all summer... Thanks for checking in!
Sounds like some sort of fuel delivery issue. At any point in time did fuel sit in the carb while it sat idle not being used? If you dumped the old fuel and put fresh fuel and still exhibited the same issue, I would suspect fuel delivery issues still exist. I would take the Carburetor apart and unscrewing the main jet and nozzle and soaking the entire Carburetor for atleast 3hrs. Do not just spray the Carburetor via a canister and expect it to be fully cleaned by that process, bc it doesn't. The two best methods are either soaking in a Carburetor cleaner or ultrasonic machine for at least 3 hrs. Ensure all passages are clean. Follow it up with freshwater to rinse and blow compressed air to get rid of all the moisture and particles. That is my go to method and has never failed me.
Hi and thank you. Your looking for corrosion of the electrode mainly and ensure the gap is within a 0.6-0.7mm range, for this you would require a feeler gauge. If it looks horribly corroded I would replace it like for like, F4 uses a CR6HSB.
Do you find Yamaha 6 horse significantly louder as it exhaust above the water line compared to say the Mercury is it loud enough that it would convince you not to buy a Yamaha
how much speed do you get with your setup? Im wondering how much speed I would get on flat water with 2 person on my Takacat 280L (small catamaran style inflatable boat) + my 6hp Yamaha F6. Cheers
Hi, I know the Takacat well unfortunately never owned one. I had a SIB last year that I hooked the F6 to but it was very bogged down and slow, I think because of the soft hull. Had a Marlon SP12 the year b4 and it flew, got up on plane like nothing with 2 ppl. I’m presuming the Taka will be somewhere in the middle to upper range of that? Sorry I can’t be much help I am boat-less again as it’s winter here.
the taka at least has a solid metal transom. and fullyinflated its at least as hard as stand up paddle boards. hope get at least 15km/h with 2 people on board@@everything.outdoors
What boat length do you have? I just picked up the same motor used. And have a marlon sp12. Could u some day due a speed test. Would be nice to see the Yamaha and a marlon cruising at full speed. Also Due u troll with your motor for fishing?
Hi, I have never trolled with this motor, I used to with an F25 which was well setup for it but don't really troll much anymore. The boat in the vid is a Marlon SP12, planes beautifully, even with 2 adults and a little gear. Sadly had to sell the boat as I have moved house. I used this motor on a 12' inflatable SIB and it was so bogged down, the Marlon was the perfect match. Good luck
Привет. Есть ли у вас налог за этот мотор. Если нет, то со скольки лошадиных сил платят налог. У нас в России, налог начинают платить свыше 10 лошадиных сил. Спасибо
Thank you for the instructions! Very useful.
Great tutorial 👌 thanks
Great video, thank you. You forgot to show the grease nipple though. Have a great day
I had an unusual issue this yer when running my 6hp Yamaha w/remote tank. I do the maintenance as you describe, change the fuel filter and have replaced the impeller componets once (spring 2022). This summer it would start fine and after a few minutes, it would miss and get progressively worse then stall. I could restart it immediately and the same behavior would repeat after a few more minutes running at speeds just above the start indicator on the tiller handle. I found I could prevent stalling out by quickly dethrottling and returning to the original position. I removed the plug and cleaned/gapped it, but it didn't need much adjustment or cleaning. I was thinking I may have had a bad tank of fuel. So I dumped it in my car and refilled the tank (always use ethynol-free in this motor). I took it out yesterday and it stalled out once again, then had a few misses as I continued. After a few minutes, it ran great on the remainder of the 20 minute run to the ramp. When I got home and flushed it in a barrel, it seemed to be fine, but is hard to tell running at low speed in gear while in the barrel.
Do you suppose there was some moisture in the fuel line of the motor or the fuel filter and it eventually cleared out with the fresh gas? Is there something else in the ignition system that might cause a miss and then it clears up?
Thanks for the informative video!
Hi, thanks for the comment. Funny you should mention this, I had this issue when I first bought the motor. I believe mine was down to some old gasoline. I had some stabilized gas sitting for the winter and threw it in the built in tank at the start of the season, it behaved similar to as you described. I ran the motor dry and added fresh zero ethanol and no problems since, so I was convinced it was the fuel. I did have an old Lund with a Mercury 9.9 years ago that was doing it and it turned out that it was sucking air in through one of the fuel line fittings. Sounds a lot like yours may be sucking air when it’s demanding more fuel at higher speeds? I only use the built in tank, apart from the one issue so far so good. Hope you get it figured out…
@everything.outdoors hmmm...have to check that. Mine turn and sort of screw on. I did have an issue today with the hose...pit it on the tank with the primer bulb closer to the tank...couldn't get it to prime, then switched ends and it worked as expected. Later read the owners manual - there is an arrow on the bulb that I missed!
I think I'll change out the fuel filter and give it a trial! I do run it dry after shutting off the gas, but I suppose there could be a bit of gas and maybe a small amount of condensation from the moisture in the air...it does sit adjacent to the water all summer...
Thanks for checking in!
Sounds like some sort of fuel delivery issue. At any point in time did fuel sit in the carb while it sat idle not being used? If you dumped the old fuel and put fresh fuel and still exhibited the same issue, I would suspect fuel delivery issues still exist. I would take the Carburetor apart and unscrewing the main jet and nozzle and soaking the entire Carburetor for atleast 3hrs. Do not just spray the Carburetor via a canister and expect it to be fully cleaned by that process, bc it doesn't. The two best methods are either soaking in a Carburetor cleaner or ultrasonic machine for at least 3 hrs. Ensure all passages are clean. Follow it up with freshwater to rinse and blow compressed air to get rid of all the moisture and particles. That is my go to method and has never failed me.
Great tutorial but is there anything in particular to be looking for when inspecting the spark plug?
Hi and thank you. Your looking for corrosion of the electrode mainly and ensure the gap is within a 0.6-0.7mm range, for this you would require a feeler gauge. If it looks horribly corroded I would replace it like for like, F4 uses a CR6HSB.
Thank you for the quick feedback I’ll be doing this service in the next couple days. 🙏
Do you find Yamaha 6 horse significantly louder as it exhaust above the water line compared to say the Mercury is it loud enough that it would convince you not to buy a Yamaha
Great video thanks .What’s the number of spark plug you used? Please
Hi, the F6 takes a CR6HSB.
how much speed do you get with your setup?
Im wondering how much speed I would get on flat water with 2 person on my Takacat 280L (small catamaran style inflatable boat) + my 6hp Yamaha F6.
Cheers
Hi, I know the Takacat well unfortunately never owned one. I had a SIB last year that I hooked the F6 to but it was very bogged down and slow, I think because of the soft hull. Had a Marlon SP12 the year b4 and it flew, got up on plane like nothing with 2 ppl. I’m presuming the Taka will be somewhere in the middle to upper range of that? Sorry I can’t be much help I am boat-less again as it’s winter here.
the taka at least has a solid metal transom. and fullyinflated its at least as hard as stand up paddle boards. hope get at least 15km/h with 2 people
on board@@everything.outdoors
What boat length do you have? I just picked up the same motor used. And have a marlon sp12. Could u some day due a speed test. Would be nice to see the Yamaha and a marlon cruising at full speed. Also Due u troll with your motor for fishing?
Hi, I have never trolled with this motor, I used to with an F25 which was well setup for it but don't really troll much anymore. The boat in the vid is a Marlon SP12, planes beautifully, even with 2 adults and a little gear. Sadly had to sell the boat as I have moved house. I used this motor on a 12' inflatable SIB and it was so bogged down, the Marlon was the perfect match. Good luck
Привет. Есть ли у вас налог за этот мотор. Если нет, то со скольки лошадиных сил платят налог. У нас в России, налог начинают платить свыше 10 лошадиных сил. Спасибо
Price please
Presios de este Yamaha
Electric starter possible
Unsure about this, but worth looking into 👌