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Motor In-decisions Optimax vs 4 strokes - Page 2
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Thread: Motor In-decisions Optimax vs 4 strokes

  1. #16

    Re: Motor In-decisions Optimax vs 4 strokes

    That is probably the longest lasting "Internet story" ever, talk about regurgitating something someone read!

  2. #17

    Re: Motor In-decisions Optimax vs 4 strokes

    But I should add, last time I read it, the 140 was 128HP, must have lost one HP over time.

  3. #18
    Ausfish Platinum Member
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    May 2007

    Re: Motor In-decisions Optimax vs 4 strokes

    Quote Originally Posted by Jarrah Jack View Post
    If you're thinking of doing the rivers I wouldn't be thinking of a glass boat. Snags and rock bars and big tides aren't good for glass boats. I wouldn't be thinking of a stacer or pressed alloy for that money. Platey's are the go around the territory in the rivers. They love their GS Marine style. A 5.5 with a 140 zuk like my mate in Darwin has would be worth considering. They tend to be cheaper in Qld than the NT. The roads can be shocking so you need a strong well setup trailer.
    Bingo....JJ wins.

    Honestly mate I've been here for over 20 years and have fished Gove and the Islands where you are Truant.Wessel's,Brombys etc....

    For over your way i'd actually go a glassboat or a custom platey.........For engines and service (if you can call it that)......Either a Yamaha 2 or 4 stroke your choice or the Suzuki........We have a well established Yamaha dealer in Darwin and 2 Suzuki dealers.....other brands make good outboards it's their northern network that's the problem.

    A Stabcraft or similar would be a great boat over that way to be honest.

    Dan
    Confidence.......the feeling you get before you fully understand the situation.

  4. #19

    Re: Motor In-decisions Optimax vs 4 strokes

    Quote Originally Posted by Dan5 View Post
    Bingo....JJ wins.



    Dan
    What do I win Dan? Come on don't be a spoil sport. Expect the collect next runoff.

    An Ausfish M&G on the Daly during the classic wouldn't be a bad idea You only need two members to make it official.

  5. #20

    Re: Motor In-decisions Optimax vs 4 strokes

    Yeah rivers would have been a bonus but isnt the main objective prefer the deeper blues and may even get into the Bill's
    Would love a plate Ally but the ones I have found are a little out of my price range so think the Glass will be the way to go just have to see how many more pop up in the next week or so but really finding it hard to go past the Trophy with the good reports of the Optimax, might just have to see how it goes in the water.....
    Thanks once again

  6. #21
    Ausfish Platinum Member Camhawk88's Avatar
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    Jun 2010

    Re: Motor In-decisions Optimax vs 4 strokes

    Having owned Honda and YAmmie 4s and now Optis I would have no hesitation recommending any of them. I dont find the Opti loud or thirsty. The servicing fees are significantly less and they will deal with poor fuel much better than a 4 stroke. The guy I brought this off uses Mercs exclusively in some of his Asian operations where they have been forced to run 81octane fuel with no problems. Could be a handy trait in remote areas.

    Also probably the best reference you could get for your part of the world- Malcolm Douglas used Optis for the last 15 or so years of his Kimberly long range trips. says a lot for reliability.

    I would look at glass if you are doing predominantly offshore.


  7. #22
    Ausfish Platinum Member
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    Oct 2004

    Re: Motor In-decisions Optimax vs 4 strokes

    I don't think they are more tolerant of poor fuel than 4 strokes, at least with respect to water in the fuel. It can ruin the injectors and in a V6 Opti there are $7,000 worth of them!

  8. #23
    Ausfish Platinum Member Camhawk88's Avatar
    Join Date
    Jun 2010

    Re: Motor In-decisions Optimax vs 4 strokes

    There is poor fuel then there is water in the fuel- completely different. Not aware of any motor that will deal well with water in the fuel. I was referring to fuel quality which in remote areas with not a lot of volume going through the tanks can be an issue.
    That said a carby motor would be a lot easier and cheaper to repair than an injected motor if it took water but hardly a compelling argument to go back to an inefficient carby motor.


  9. #24
    Ausfish Silver Member
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    Jun 2010

    Re: Motor In-decisions Optimax vs 4 strokes

    Buy a suzuki, end of story shut this thread

  10. #25
    Ausfish Platinum Member
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    Oct 2004

    Re: Motor In-decisions Optimax vs 4 strokes

    Quote Originally Posted by Camhawk88 View Post
    There is poor fuel then there is water in the fuel- completely different. Not aware of any motor that will deal well with water in the fuel. I was referring to fuel quality which in remote areas with not a lot of volume going through the tanks can be an issue.
    That said a carby motor would be a lot easier and cheaper to repair than an injected motor if it took water but hardly a compelling argument to go back to an inefficient carby motor.
    Well if fuel has water in it I would call that poor fuel. What you mean to say is stale fuel is a different matter. My point was that a carby two stroke would be potentially a lot cheaper to fix after water contamination than an injected motor. All round they are a lot cheaper/ simpler to work on and I think that at 90hp and under this should be considered when chosing a motor. The extra fuel use is not that significant with these smaller motors for average recreational use.

  11. #26

    Re: Motor In-decisions Optimax vs 4 strokes

    Quote Originally Posted by Camhawk88 View Post
    There is poor fuel then there is water in the fuel- completely different. Not aware of any motor that will deal well with water in the fuel. I was referring to fuel quality which in remote areas with not a lot of volume going through the tanks can be an issue.
    That said a carby motor would be a lot easier and cheaper to repair than an injected motor if it took water but hardly a compelling argument to go back to an inefficient carby motor.
    The modern 4 stroke is well equipped to handle a dose of water in the fuel system. I could train an owner to remove the water and restart the engine in about 5 minutes on a 140 suzi. On a carby 2 stroke the carbies would need to be removed, stripped and cleaned.
    Garry

    Retired Honda Master Tech

  12. #27

    Re: Motor In-decisions Optimax vs 4 strokes

    I would avoid the Trailcraft due to the poor ride. I have fished in one and thought it was very ordinary. The Stacer would make you best mates with the local alloy repair welder. I am still not into the direct injection engines. The good experiences are good and the bad very bad. Go for a jap engine.

  13. #28
    Ausfish Platinum Member Camhawk88's Avatar
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    Jun 2010

    Re: Motor In-decisions Optimax vs 4 strokes

    Quote Originally Posted by billfisher View Post
    Well if fuel has water in it I would call that poor fuel. What you mean to say is stale fuel is a different matter. My point was that a carby two stroke would be potentially a lot cheaper to fix after water contamination than an injected motor. All round they are a lot cheaper/ simpler to work on and I think that at 90hp and under this should be considered when chosing a motor. The extra fuel use is not that significant with these smaller motors for average recreational use.
    Semantics.
    My next sentence about a low octane fuel should have given a hint as to my reference to poor fuel. If it had sugar in it you could call it poor fuel.
    You made no reference at all to 2 strokes but specifically mentioned 4 strokes. Of course a carby 2 stroke is easier to work on however as Spaniard king has pointed out we are probably both wrong about a carb 2 stroke being better equiped to deal with water. Although I recall my 97 Honda twice needed stripped carbs to deal with water ingress however they have probably advanced since 97.

    Given all of that I still would not consider a carb 2 stroke for the sort of work he is most likely to do with long range trips often the norm in the NT you need an awfully big fuel tank to get the range. An opti would be a good choice based on good fuel efficiency, lower maintenance costs, great reliability, lower purchase price and ability to run on lower octane (stale) fuel which can be an issue in the more remote parts.


  14. #29

    Re: Motor In-decisions Optimax vs 4 strokes

    Quote Originally Posted by Spaniard_King View Post

    . I could train an owner to remove the water and restart the engine in about 5 minutes on a 140 suzi. .
    Might take you up on that Garry.

  15. #30
    Ausfish Platinum Member
    Join Date
    Oct 2004

    Re: Motor In-decisions Optimax vs 4 strokes

    Quote Originally Posted by Spaniard_King View Post
    The modern 4 stroke is well equipped to handle a dose of water in the fuel system. I could train an owner to remove the water and restart the engine in about 5 minutes on a 140 suzi. On a carby 2 stroke the carbies would need to be removed, stripped and cleaned.
    No need for all that for a carby motor unless you have left water in it for a long time or you have used ethanol fuel (gunk or solids can form upon water contamination). I have had water in my carbies several times and all my mechanic did was drain the bowls via the removable scews and give a drying with some compressed air and flush with fresh fuel.

    On the other hand injectors aren't nearly as robust especially in the case of DI 2-strokes like the Optimax. An ultrasonic bath is used to clean them but it not always successful and you can be up for thousands to replace them.

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