Bonneville/ america engine swap..

Discussion in 'Technical Help' started by Crprince, Oct 10, 2013.

  1. Crprince

    Crprince New Member

    Oct 10, 2013
    0
    1
    #1 Crprince, Oct 10, 2013
    Hi..my first posting..to make a long story short..i'm transplanting an " america 270deg. Engine into a "Bonneville" 360 deg.wired frame...and am not quite sure how to rewire in order to make this new configuration work..i have a fair idea..but the particulars escape me..Do i...wire in an extra coil( if so how)...can i remap the current Bonneville igniter to run an America sequence?... I'm relatively sure that physically the connector junctions are the same for both igniters..so it should be relatively plug and play..its the finesse wiring differences that i need some direction on..any illumination or referral would be greatly appreciated..thank you in advance..
     
  2. Screwball

    Screwball Active Member

    Mar 21, 2013
    1,018
    36
    Kent
    #2 Screwball, Oct 10, 2013
    Last edited: Oct 11, 2013
    Ok I'm no expert but surley the 270 or 360 is down to the crank rotation rather than the wiring.
    The spark will only happen @TDC and as the engine is a twin rather than a triple I don't see how wiring an extra coil will make a difference.
    You need to make sure the engine managemt is set right.. You can only do that via Tune ECU or tune boy.. I'd try running an american map on your current ECU, but save your current set up firstly..
    If the connectors line up then it should be a simple reprogram to alter the ignition sequence to match the crank rotation rather than a major rewire.....

    Hope that helps and maybe someone with more knowledge will chip in and confirm...
     
    • Like Like x 1
  3. Crprince

    Crprince New Member

    Oct 10, 2013
    0
    1
    #3 Crprince, Oct 11, 2013
    Thanks very much!
     
  4. P19DJG

    P19DJG Banned

    Mar 16, 2013
    1,660
    0
    #4 P19DJG, Oct 11, 2013
    Nothing more for me to add really SB, you pretty much nailed it there! :upyeah:
     
    • Like Like x 1
  5. brybrem

    brybrem Senior Member

    Mar 8, 2013
    1,435
    113
    North Wales
    #5 brybrem, Oct 11, 2013
    magic.gif

    magic.gif
     
Loading...
Similar Threads - Bonneville america engine
  1. Kernow

    Bonneville America 865. Gear Lever.

    Kernow, May 23, 2025, in forum: Parts, Accessories & Clothing
    Replies:
    0
    Views:
    371
    Kernow
    May 23, 2025
  2. Mr.Goodwill

    Can't Take Off The Seat Bonneville America 2014

    Mr.Goodwill, Dec 10, 2023, in forum: Bonneville
    Replies:
    2
    Views:
    1,721
    Mr.Goodwill
    Dec 13, 2023
  3. Mr.Goodwill

    Bonneville America 2014 - Not Starting

    Mr.Goodwill, Dec 3, 2023, in forum: Bonneville
    Replies:
    3
    Views:
    2,487
    Mr.Goodwill
    Dec 6, 2023
  4. Alistair Newton

    Triumph Bonneville America 2003 Will Not Start ?.

    Alistair Newton, Jun 2, 2023, in forum: Technical Help
    Replies:
    6
    Views:
    1,679
    Poodle Head Mikey
    May 26, 2025
  5. Gary Stuart Wicks

    Triumph Bonneville America Lt (limited Edition) 8 Ball Paint (12 Months Mot)

    Gary Stuart Wicks, May 15, 2023, in forum: Bikes for Sale
    Replies:
    0
    Views:
    1,133
    Gary Stuart Wicks
    May 15, 2023

Share This Page

Sign up