Which is better? (Working on two 9.8 Tohatsu outboards) Start to Finish
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- Опубликовано: 5 сен 2024
- So in todays video I’m rebuilding two motors from start to finish so stay tuned through the whole video of the full rebuilds of these two motors. Big question in the marine industry is which is better. A 4 stroke or a 2 stroke. In this video I go through each motor and put them to the test against each other. Comment down below what you think is better. As always thank you for watching that video and I’ll see you in the next one!
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I have the exact same 2 stroke, that 2 stroke is a very unhappy one. torque is much lower than what it should be. That white prop can be the problem. it must be too big for this motor.
More than likely. From what I remember the prop was pretty gouged. So I def was cavitating a lot but i don’t keep the motors so putty the right prop for my boat was pointless as the next guys boat may need a different pitch to run right
Nice work. Appreciate the detailed mechanics of the work performed on each motor. What size and weight boat are you using to test the units? Also what speed did each reach in case I missed it in your review. Enjoyed the two-stroke vs four comparison of the same manufacturer.
i got a 1998 25hp mercury 2stroke wondering if you can do a timing setup video for that engine or a similar one. nice videos they are great keep them coming.
Yes hopefully I can get one in soon!!
Just found your channel. Good to find someone else that likes to buy, refurbish and sell outboards. Just out of curiosity... Why the facemask?
Hey appreciate the comment. I get this a lot but basically I work at a marina and I wear it to help with smoke intake cus I work on a lot of stern drives and a lot of 2 strokes. So it’s been my thing of wearing it and it hides my identity in the videos for now
How is the torque to close head bolts?
27:19 Is it normal, that it shoots water and watervapor out of this hole in the back? I have the same problem and i am wondering, whether or not i should change the thermostat. When the it opens up, the water should flow out of there. But on my outboard, there is only hot water mist coming out. It doesnt appear to overheat though so I thought maybe you have more info on if this is normal..
Yes it’s the exhaust gases. They will steam and stuff like that especially if you run it in a bucket. As long as it dosent overheat there’s no issues to worry about
@@outboardfinatic in the meantime i brought her up on plane and went fullspeed for 20 min and it didnt overheat. You just want these to be as reliable as possible. Your comment gave me a huuuge peace of mind! Cheers!!
@@pietlopsa9164 yup it’s always best to lake test these motors. They’ll sound perfectly fine and not overheat at home. And then when you actually put a load on the engine is when you’ll notice problems. So I’m glad to hear it worked out for you and just keep up with the routine maintenance each year and these motors will treat you very well
Nice, my 2stroke has about 130 compression, I guess I'm good 😆
Hahah yea that’s basically factory compression you got there so yea very healthy
U never told us the speeds and the size and typ of boat
Not sure as I was driving a tiller by myself and tryna record at the same time so couldn’t get speed and stuff. Was more so just making a vid of me redoing the motors. I have a 14 ft mirror craft test boat. It’s like a semi V boat that I use for testing. But idk I would guess 15 mph on the 4 stroke and maybe like 10 with the 2 stroke but honestly don’t remember it was so long ago I did these motors
Those bearings on the 2 stroke don’t sound the best
That 2 stroke is not right, it should leave the 4 stroke for dead
I don't see why. It's got less power at the prop shaft, because it's compression is down from the factory more than the 4 stroke. The only thing in the 2 stroke's favour is that it weighs about 18 lbs less, and even that might be mitigated by the need to carry more fuel for the same distance.
In the video, the 2-stroke had a hydrofoil, which tends to help with trim but depending upon a lot of factors, can reduce top speed.
A significant issue is that the two aren't being compared with the same prop. The 4-stroke's prop appears to be in good shape, possibly OEM, the 2-stroke's prop looks like it needs some TLC.
My tohatsu 9.8 2 stroke go 21mph
So not worth it on the 2 stroke. The cost to pay someone with experience with this unit who could fix it would be prohibitive. Unless you are absolutely mated to this motor and want to bang it up the water intake port till you die and have stupid money you have no other use for : You have lost your mind, seek help.