Dynoverks
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  1. #1
    n00bie


    Real Name
    Kevin
    Bike
    1986 GPZ 750
    Join Date
    Feb 2012
    Location
    essex
    Posts
    30

    Default 86 GPZ750 (air cooled)

    Ok so here is for my first help post.

    I am a total noob when it comes to bikes. So i just bought my first bike its this 1986 gpz 750 made from the left overs of an 85 i think as the 86 onwards were water cooled.

    Now i have a problem.the bike was used as a winter hack before and needs a new wiring loom/Wiring Harness.

    Will the Harness from a 1986 GPZ 900 be a straight swap, and could i use a harness from an 83 gpz 750 without having to make any modifications?

  2. #2
    [comfortably numb]


    Real Name
    Dave
    Bike
    Z1RMKII ZRX1200 750Turbo
    Join Date
    Nov 2008
    Location
    Bundaberg qld
    Posts
    4,554
    My Mood
    Lurking

    Default

    Kev...you need to get the a harness from that specific GPZ 83-85?
    http://www.kawariders.com.au/showthr...hlight=harness
    Don't knock my turbo lag - it gives your naturally aspirated a chance..

    My youtube vids..http://www.youtube.com/user/htmonaro?feature=mhee

    76 KH500 triple..............April 2013 botm
    05 ZRX1200R..................April 2011 botm

    80 Z1R MkII...............October 2011 botm
    83 GPZ 750 Turbo.....January 2010 botm
    81 Suzuki Katana........GSX1000

    2010 Moto Gp tipping champ.
    2011 Moto Gp tipping champ.
    2012 Moto Gp tipping champ.
    2013 Moto Gp tipping champ.

  3. #3
    n00bie


    Real Name
    Kevin
    Bike
    1986 GPZ 750
    Join Date
    Feb 2012
    Location
    essex
    Posts
    30

    Default

    yeah i saw that thread earlier and its actually what made me join the forum... Im having a really hard time finding the harness for the bike... they are like rocking horse ****. Found a harness on ebay but its for an 83 gpz 750, and also spoke to my local kawasaki dealer and he pulled up a harness from the 86 gpz 900 but wasnt sure if either of the 2 would fit my bike... the only harness for the 85/86 i have found is from the USA and im not sure whether they are the same as the UK models.

    she fires and runs but thats about it i have no clocks, no guages, no lights... is ther another way around this maybe???

  4. #4
    [comfortably numb]


    Real Name
    Dave
    Bike
    Z1RMKII ZRX1200 750Turbo
    Join Date
    Nov 2008
    Location
    Bundaberg qld
    Posts
    4,554
    My Mood
    Lurking

    Default

    I'll ask the the pommy gpz750turbo forum for you Kevin.....someone may have a harness laying about for the na model???
    Don't knock my turbo lag - it gives your naturally aspirated a chance..

    My youtube vids..http://www.youtube.com/user/htmonaro?feature=mhee

    76 KH500 triple..............April 2013 botm
    05 ZRX1200R..................April 2011 botm

    80 Z1R MkII...............October 2011 botm
    83 GPZ 750 Turbo.....January 2010 botm
    81 Suzuki Katana........GSX1000

    2010 Moto Gp tipping champ.
    2011 Moto Gp tipping champ.
    2012 Moto Gp tipping champ.
    2013 Moto Gp tipping champ.

  5. #5
    n00bie


    Real Name
    Kevin
    Bike
    1986 GPZ 750
    Join Date
    Feb 2012
    Location
    essex
    Posts
    30

    Default

    thanks mate...

    I have a small problem.. ok so today we put her on our rolling road to see if clutch/gearbox/engine were 100% and its all pretty good we found shes pushing 86 of the 89 horses she had when new, the gearbox is good and the clutch feels very good.
    The problem is here. there is a flat spot covering from 4,000- roughly 5,000 rpm. once its past the 5,000 mark it really pulls and pulls hard.

    What we have done:
    Cleaned the carbs, balaned the carbs, checked and replaced plugs...

    my mechanic seems to think its the bottom end thats not playing ball.... im hoping it just needs a good thrashing to get the built up carbon out of there...

    EDIT:
    Also need a new regulator/rectifier :/

 

 

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