• If this is your first visit to the iboats.com Boating Forums, be sure to check out the FAQ. To post a question or comment, begin by signing up. To start viewing messages, select the forum that you want to visit from the selection below.


Announcement

Announcement Module
Collapse

Help Tip: If you have a question that has not been answered to your satisfaction in the archives, it is always best to start a new thread of your own. By starting your own thread, you will receive the maximum number of views by forum members.

Below are some additional forum policies in hopes of all iboats members will follow, Thank you.

1. Please do not reply to old topics or hijack existing topics. Old topics of a technical nature are like a library book, Please do not write in them.

2. Old topics should be considered archives and used for reference only. Please do not reply to them.

3. Do not take over someone elseís topic (aka hijack) with your own question, even if it is similar. If you have a question that has not been covered to your satisfaction in the archives, it is always best to start a new topic of your own.

4. If you have a question for the original poster (OP) and the topic is over 30 days old, send the OP a PM, he may not even visit the forums any longer, or may not notice your question in the old topic.

5. By starting your own topic, you will receive the maximum number of views by forum helpers that may not even notice your question when itís posted at the end of someone elseís topic. And those answers will be specific to your particular issue.

6. Please do not post to topics that have been inactive for more than 3 months unless you are the original poster. We have very active forums and any topic that remains inactive for that long should be considered "dead". It is especially confusing when there is an entirely new question posted to an old topic.

7. Posting at the end of any topic is considered to be hijacking the original posters topic which in turn subjects the topic to be closed if it continues to happen thus not making it fair to the original poster in the future had for some reason he/she needed to return for additional information or provide an update of the problem solved which is always welcomed within a reasonable amount of time frame.

8. Please note that you should see a red banner pop up near the bottom of each inactive topic asking you not to reply to old topics. The Red banner will read: Please note this topic has been inactive for 90 days. For the best results, please start a new topic.

Thank you all in advance for doing your part in helping iboats run a smooth ship.

Additional forum rules linked below.
http://forums.iboats.com/forum-rules-guidelines-405/
See more
See less

150 Yamaha HPDI VS 4 STROKE

Page Title Module
Move Remove Collapse
X
Conversation Detail Module
Collapse
  • Filter
  • Time
  • Show
Clear All
new posts


  • 150 Yamaha HPDI VS 4 STROKE

    I have just ordered a new Skeeter bay boat and have the option of a 150 Yamaha HPDI of the F150 four stroke. Which is the better engine out of the two of them? Which will require less maintance? And have there been any problems with either one. The F150 is new, should I be worried.Thanks Mark


  • #2
    Re: 150 Yamaha HPDI VS 4 STROKE

    depends on what YOU want it to do and what YOU plan to use it for,,,,each have their pluses and minuses.... im sure you know that... this thread wiill get a lil carried away with 2 stroke vs 4 stroke bashers...but in a nutshell, that hpdi is gonna be lighter and is a bitc#en motor! thats all im saying....do a search for 4 stroke vs 2 stroke... youll find tons of reading

    Comment



    • #3
      Re: 150 Yamaha HPDI VS 4 STROKE

      I have the Yamaha 150 FXTR fourstroke on a 20ft Polar bay boat and love it.As per Yamaha specs, the 150 fourstroke is actually around 10lbs lighter than their 150 HPDI.Kevin

      Comment



      • #4
        Re: 150 Yamaha HPDI VS 4 STROKE

        From what I've read and heard, the F150 is the cream of the crop in fourstrokes, with not as much noticable lag as some others. The 2 stroke is an awesome motor but for all around ease of use and reliability, I would go with the 4 stroke. I kinda have the feeling that you already picked one out in your mind if your boat is already ordered, so fess up and tell us which one you like!!

        Comment



        • #5
          Re: 150 Yamaha HPDI VS 4 STROKE

          Quantumleap, At this time I have no idea which engine I should put on the boat. It will take six weeks for them to build it so I have several weeks to research the two engines. Will the 150 four stroke have the same hole shot that the HPDI has or will it be slower? I would like any feedback!Thanks

          Comment



          • #6
            Re: 150 Yamaha HPDI VS 4 STROKE

            Kevin, How fast is your F150 pushing your Polar Bay Boat at WOT.

            Comment



            • #7
              Re: 150 Yamaha HPDI VS 4 STROKE

              I use my '04' F-150 to pull things. Sorry, couldn't help myself.

              Comment



              • #8
                Re: 150 Yamaha HPDI VS 4 STROKE

                No question...the F150. Better warranty. Better re-sale. Better reliability and durability. Lighter. No 2-stroke oil remote tanks. Awesome power.

                Comment



                • #9
                  Re: 150 Yamaha HPDI VS 4 STROKE

                  HPDI. Sucks the headlights out of a 4/strokes.

                  Comment



                  • #10
                    Re: 150 Yamaha HPDI VS 4 STROKE

                    HPDI. Sucks the headlights out of a 4/strokes.
                    Not hardly.Although you won't find Yamaha performance bulletins comparing the Skeeter Bay with HPDI and 4-stroke 150's yet, there are some other examples.For example, Yamaha compares the same exact boat, a Skeeter ZX2200, with both the HPDI 200 HP and the F200 4-stroke. Same exact prop, same exact test conditions. One exception being that with the 4-stroke, the boat is 58 lbs heavier.The 4-stroke planed the boat almost half a second faster than the HPDI (HPDI 200 = 5.615 sec. F200 = 5.145 sec). Top speed for the HPDI was only 1 mph faster than the 4-stroke....and at the expense of burning 1.5 more gallons of fuel per hour and making 6 more Db of noise. Not exactly sucking headlights out there.Now remember, unlike the 200's, the F150 is lighter than the HPDI 150. And the F150 is said to be a surprising performer (and it is). Add that to the problems a direct injection 2-stroke can give you, the enjoyment owning a 4-stroke can give you, and you have a winner with the F150. Hands down.

                    Comment



                    • #11
                      Re: 150 Yamaha HPDI VS 4 STROKE

                      My F150 is still within the breakin period so I really haven't tried to squeeze the maximum speed out of it. However in short bursts of power I've been able to get it between 35-40 mph at around 4500 RPM's with boat full of fuel, 2 adults and 2 children on board. I am confident that once the motor is broken in and I burn off some fuel, it will easily top out over 40 mph. I am also very happy with the hole shot and don't feel as though I have compromised any performance in comparision to a two stroke. As other posters have indicated, I don't think you will go wrong with the F150.Kevin

                      Comment



                      • #12
                        Re: 150 Yamaha HPDI VS 4 STROKE

                        h20fowl- Traditionally, 2 strokes have always had better hole shot and top end than comparable 4 strokes, but in the last couple years, yammies and suzi's are closing the gap. The only reason 4 strokes haven't taken over the market is weight. Guys like bass boaters will always go with the lightest, fastest setup, which has been, and still usually is the 2 stroke. But in the case of the 150 and 200 Yamaha's, they are about as equally matched as you can get. Forktail points out a great real-life example that is hard to argue with. I think B&WB magazine did a similar comparison a couple months back. Check it out if you can. One minor difference that I notice is the HPDI looks so cool with the high-tech cowl and the 4 stroke looks a little ordinary. Not bad, just not as racy. Just an ego thing I guess!

                        Comment



                        • #13
                          Re: 150 Yamaha HPDI VS 4 STROKE

                          Turn the key on a 4 stroke and it starts.Turn the Key on that 2 stroke, feather the throttle, bump the primer. Stop. Pump the bulb again hit the key, engine races up to high rpm, smokes out the neighbor hood then stalls. Hit it again cough, lean sneeze stall. Turn the key again battery is dying it better go this time! Engine starts oh no oil buzzer goes find the oil jug. Finally ready to hit the water. What? I can’t hear you over that engine.I prefer 4-strokes. Mac

                          Comment



                          • #14
                            Re: 150 Yamaha HPDI VS 4 STROKE

                            Thanks guys this makes it real easy. I will go with the four stroke. I talked to a guy on Saturday who just sold one of the Skeeter ZX20 Bay boats and he said they were running the boat at 57mph and wot. Thanks for all your help!Mark

                            Comment



                            • #15
                              Re: 150 Yamaha HPDI VS 4 STROKE

                              We sell 61 to 1 HPDI's to four strokes(2003). On the larger boats four strokes burn the same amount of fuel. That the facts forktree. The v'6s weight 100 more and you can't find the correct props for four strokes. The 225 makes 218 hp on the dyno. They turn up more(RPM's). There is no comparison HPDI vs four stroke on the v-6 engines. We live on the coast here where people buy engines that preform and get the job done and its not four strokes. Maybe on alittle lake on the big pond the real men Run HPDI's (two-strokes).Four strokes need more service. I will never own a four stroke outboard. The difference I run the big hpdi's and know what you four stroke guys are missing. We haven't had one customer say they wish the had a four stoke. We have had customers take there four strokes off and put HPDI's on.

                              Comment


                              Working...
                              X