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  1. #1
    Silver Member
    Join Date
    Sep 2011
    Posts
    157
    Location
    south west scotland
    Tractor
    yanmar ym1500 also massey ferguson 35 son

    Default update ym1500 battery

    ok guys got a new battery 70ah 630cold crank . fitted it yesterday went to start it but it just turned over slowly . forgot to use decompressor held down decompressor fired it over till it started to turn fast fired up no prob. it is a bit cooler over here just now is that normal ? it seems like these two cyclinder 's have high compression?

  2. #2
    Super Member clemsonfor's Avatar
    Join Date
    Sep 2009
    Posts
    6,468
    Location
    Greenwood Co., SC
    Tractor
    Yanmar YM2000

    Default Re: update ym1500 battery

    do have high compression, and turn over slowly with good battery and cold engine compared to spinning with decomp pulled.
    YM2000. MF dirt scoop,4' Jbar bushhog,boompole, LMC 12-16 disk harrow, 4' Atlas boxblade (with rippers). 1980 chevy K10,1990 ford ranger 2wd (285K miles),1997 saturn SL2 (twin cam!!),2001Toyota Higlander
    1986 Cobia 177 sunskiff w/1981 Johnson 60 hp
    1991 Javalen 17ft w/same year 150 Johnson GT
    Troybuilt 4 cycle & Echo 2 stroke,cold natured(need carb rebuild),MS390 Stihl, Northern tool pressure washer, mixes water into the oil in the pump(now dead, motor on a tiller). 5000 watt generator.

  3. #3
    Silver Member
    Join Date
    Sep 2011
    Posts
    157
    Location
    south west scotland
    Tractor
    yanmar ym1500 also massey ferguson 35 son

    Default Re: update ym1500 battery

    yes it dose that but starts ok with decomp after spinning it up no trouble is that normal? thanks
    Quote Originally Posted by clemsonfor View Post
    do have high compression, and turn over slowly with good battery and cold engine compared to spinning with decomp pulled.

  4. #4
    Platinum Member
    Join Date
    Mar 2002
    Posts
    546
    Location
    Central Arizona
    Tractor
    YM1500D

    Default Re: update ym1500 battery

    As I recall that is the recommended way to start it. I always do it that way with mine.

  5. #5
    Silver Member
    Join Date
    Sep 2011
    Posts
    157
    Location
    south west scotland
    Tractor
    yanmar ym1500 also massey ferguson 35 son

    Default Re: update ym1500 battery

    yes that is the way im starting it was just wanting to make sure i was doing it right . thanks
    Quote Originally Posted by reb View Post
    As I recall that is the recommended way to start it. I always do it that way with mine.

  6. #6
    Super Member clemsonfor's Avatar
    Join Date
    Sep 2009
    Posts
    6,468
    Location
    Greenwood Co., SC
    Tractor
    Yanmar YM2000

    Default Re: update ym1500 battery

    sounds normal to me. if it starts and runs fine don't worry anymore
    YM2000. MF dirt scoop,4' Jbar bushhog,boompole, LMC 12-16 disk harrow, 4' Atlas boxblade (with rippers). 1980 chevy K10,1990 ford ranger 2wd (285K miles),1997 saturn SL2 (twin cam!!),2001Toyota Higlander
    1986 Cobia 177 sunskiff w/1981 Johnson 60 hp
    1991 Javalen 17ft w/same year 150 Johnson GT
    Troybuilt 4 cycle & Echo 2 stroke,cold natured(need carb rebuild),MS390 Stihl, Northern tool pressure washer, mixes water into the oil in the pump(now dead, motor on a tiller). 5000 watt generator.

  7. #7
    Silver Member
    Join Date
    Sep 2011
    Posts
    157
    Location
    south west scotland
    Tractor
    yanmar ym1500 also massey ferguson 35 son

    Default Re: update ym1500 battery

    yes it dose chelmsonfor. just been used with pre heating compact before that but getting in to the way of it now. thanks
    Quote Originally Posted by clemsonfor View Post
    sounds normal to me. if it starts and runs fine don't worry anymore

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