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Thread: Honda Big Announcement end of October 2017.

  1. #371
    Bob rjs987's Avatar
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    Re: Honda Big Announcement end of October 2017.

    So the shared owners manual is:
    https://drive.google.com/file/d/0B1A...xzekRmSzA/view

    Looks like it covers all the models since it calls out when a feature or control applies only to a certain model or group of models.
    GL1800 Gold Wing Tour base/manual
    GL1800D Gold Wing Tour DCT
    GL1800DA Gold Wing Tour DCT/Airbag
    GL1800B Gold Wing base/manual
    GL1800BD Gold Wing DCT
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    /bob
    Yep, that lone state of ME is where I owned my first mc.
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  3. #372
    240Robert ST Gui's Avatar
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    Re: Honda Big Announcement end of October 2017.

    Quote Originally Posted by rjs987 View Post
    Thank you!
    Don't tell me what I know. Tell me what I don't know.

    Ride safe, ride often.

  4. #373
    Ventura Highway wjbertrand's Avatar
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    Re: Honda Big Announcement end of October 2017.

    Quote Originally Posted by ST-Traveler View Post
    For some reason I thought the higher the compression ratio the more need for higher octane fuel, The more compression creates pre-detonation on lower octane fuels example "pinging" and when I looked at engines that use regular fuel vs premium, in most cases the compression ratio was noticeably less.
    How ever I also read that it takes regular fuel so that blows my thinking out of the water.
    It's more complicated than just compression ratios. For one thing going to a 4-valve head allows a central plug location which is ideal compared to a two valve head where the plug is stuck over to one side. That makes for a really long flame path to reach the other side of the combustion chamber. Since gas burns at the same rate regardless of RPM, more spark lead is required to allow time for this long path to burn. This additional spark advance makes the engine more susceptible to knock. I'll bet with the centrally located plug, Honda was able to back off on the ignition advance. Another factor is CC turbulence, the better the fuel/air mixture can be evenly mixed, the quicker the burn, which also allows for less spark lead. Even Harleys have finally gone to a 4-valve head, it was overdue for the GL.

  5. #374
    STOC #687 dwalby's Avatar
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    Re: Honda Big Announcement end of October 2017.

    Quote Originally Posted by wjbertrand View Post
    Even Harleys have finally gone to a 4-valve head, it was overdue for the GL.
    Wow, had no idea, just thought any large displacement Japanese m/c since the early '80s had 4 valves per cylinder.

  6. #375
    Brant's Avatar
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    Re: Honda Big Announcement end of October 2017.

    Quote Originally Posted by ST-Traveler View Post
    For some reason I thought the higher the compression ratio the more need for higher octane fuel, The more compression creates pre-detonation on lower octane fuels example "pinging" and when I looked at engines that use regular fuel vs premium, in most cases the compression ratio was noticeably less.
    How ever I also read that it takes regular fuel so that blows my thinking out of the water.
    Higher compression ratios cause fuel/air mixtures to compress more which creates more heat. To slow this igniting reaction down a bit, a higher octane fuel may be reccomended, which is a bit later igniting than a lower octane fuel. Using a higher octane fuel can eliminate any pre-ignition issues. In other words, lower octane fuel ignites quicker than a high octane fuel.
    1992 ST1100
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  7. #376
    Bob rjs987's Avatar
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    Re: Honda Big Announcement end of October 2017.

    Per the specs in the back of the official owners manual (link in post above) the recommended fuel is 86 PON or better. As stated compression isn't the only factor in determining what fuel to use. Combined with spark timing and even spark temp are also factors.

  8. #377

    Re: Honda Big Announcement end of October 2017.

    Quote Originally Posted by Uncle Phil View Post
    You know you just can't hide the money ....
    One thing about Uncle Phil, he ain't trying to hide the money. LOL
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  9. #378
    Site Supporter Uncle Phil's Avatar
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    Re: Honda Big Announcement end of October 2017.

    Quote Originally Posted by BamaRider View Post
    One thing about Uncle Phil, he ain't trying to hide the money. LOL
    Says the guy with the new house and who just bought another new motorcycle ...

    97 ST1100 STD +150,000 / 02 ST1100 ABS +114,000/ 97 ST1100 ABS +75,000
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  10. #379
    Kenichi's Avatar
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    Re: Honda Big Announcement end of October 2017.

    Crow is such tuff meat.....but I ate and now I pulled the trigger and waiting on the delivery hopefully February 2018! Yippy-Yippy.

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