yamaha vs. honda question

Not to get into the middle of things, but those are all dry weights listed. The two stroke does not have 4-5 quarts of oil in the crankcase. Point being is that factory weights shown should be taken with a grain of salt. Same with the boat itself
 
Agreed, 2-strokes are lighter, and that's why my Yamahas were 2-strokes. The '73 was great, but the '74 was a dog. They did something with the porting.

More important, a 2-stroke would be a good engine to consider, though slapshot was asking about 4 strokes.

Boris
 
Hi,
For me to slap a 200hp two stroke on a twenty five foot C-Dory Cruiser has some issues, burns more fuel, noisier, now you have to lug extra oil with you for an extended cruise so now the weight of crank case oil is a mute point. Besides there is nothing more annoying; for me anyway than to be down wind of a big two stroke smelling and breathing two stroke exhaust. I mean in the old days at the motorcycle races smelling Castrol R bean oil was one thing, out cruising along and dealing with that stench is another. Now don't get me wrong, center console fishing boat where top speed and holeshots are important gimme that two stroke. But for me making a nice and quiet fuel efficent motor for a cruiser that motors along for eight to ten hours a day the four stroke is for me.
D.D.
 
I was wondering if you guys who are debating the weight of a 150 versus a 200, realize you are talking about the equivalent weight of about 15 gallons of gas. In the ocean and crossing a river bar, there is no substitute for HP. By HP I mean hole shot HP to correct a bad situation you might be in. High end HP (at high RPM with variable valve timing) means nothing because you are traveling at a slow rate of speed if the conditions are bad. There is no substitute for cubic inches when you need HP while going slow. You need to swing a big prop and it takes cubic inches to do that. Keep in mind that when a salesman tells you a motor with lower HP and the same cubic inches as a higher HP motor has been "de-tuned", he is talking out the side of his mouth. Motors are not de-tuned. Manufactures build an engine with a designed bore and stroke. Then they rate that motor's HP at maximum RPM. After the rating they use electronics or an on board computer to make the motor turn faster which gives you the higher HP rating. Unless you are going full throttle in your C-Dory you are not going to tell the difference between say a Honda 135 and 150 or a Suzuki 150 versus 175. Yamaha does the same thing but I'm not sure of the sizes. I'm not trying convince anybody to buy a certain size motor or a particular brand. That is up to you. I just think a hundred pounds of weight on the back of your boat is not that big a deal.
 
Just for Clarification-

The Yamaha HPDI series is no longer available. It is similar to Optimax, using an air pump to push the fuel.

E-Tec is a very different beast, using an injector that creates it's own pressure.
 
Not to start touble but I just looked at Yamaha's website and they show a 200hp HPDI series 2 stroke as still available. Maybe it has not been updated. The other thing I thought was interesting that the four stroke 200/225/250 were all the same block, compression ratio and the ratings were 5000 to 6000 rpms. Only the 250's spec indicated VCT which stands for I don't know what. I can only guess varible cam timing? The weights were with 9 pounds of each other. Unless I was in a pond I think I'd want to have a 200 hp four stroke on the back of my 25' cruiser. Maybe even a Suzuki.
D.D.
 
I often think that when I am looking at these choices, between two excellent products, that the key is the local availability of really good service support. You are buying the dealer as much as the motor. Ask local owners about the quality of service.
 
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