Results 1 to 5 of 5

Thread: CR 85 motor wont fire via kick starting after it gets run .

  1. #1
    Join Date
    Nov 2010
    Location
    belleville illinois
    Posts
    272

    CR 85 motor wont fire via kick starting after it gets run .

    2003 cr 85 motor in our flat track quad doesnt want to start "via kick starting"once it has been run hard. Will fire right up when bump started. Example Went to open practice at a local short track . Only a handful of riders so we would get about 10-15 minutes between practices. Started right up cold and then as well after one or 2 sessions. After that I thought we had flooded it so we pushed started it . Fired right up. After that session I started it myself and still wouldn't fire . Tried no throttle , a little throttle , choke on , choke off.
    Motor is stoke bore and stroke with a little cylinder porting . Only has a couple races on it.
    Adam McGee Racing 11 running 2 Pitster Pro's and a Xtreme custom flat tracker. Thanks Firepower Minis, Tbolt Usa, Atv Fourplay, Pitster Pro BRM Offroad graphics, Titain Motorworks , Motocross Vests Champions Choice
    Moto X Outcast 2012 90cc 3rd place
    Steve Nace Indoor Winter Nationals St and TT 2011-2012 and 2012-2013 2nd place.

  2. #2
    Join Date
    Jan 2004
    Location
    south central oklahoma
    Posts
    2,665
    check the compression

  3. #3
    Join Date
    Nov 2010
    Location
    belleville illinois
    Posts
    272
    I can check compression tonight. Dont really think that's the issue since it bump starts so easy and runs and idles fine. We actually took 6 tenths off our best lap times later in the evening. And ran consistent 13.8 laps on a 1/5 mile track . Thanks for the input.
    Adam McGee Racing 11 running 2 Pitster Pro's and a Xtreme custom flat tracker. Thanks Firepower Minis, Tbolt Usa, Atv Fourplay, Pitster Pro BRM Offroad graphics, Titain Motorworks , Motocross Vests Champions Choice
    Moto X Outcast 2012 90cc 3rd place
    Steve Nace Indoor Winter Nationals St and TT 2011-2012 and 2012-2013 2nd place.

  4. #4
    Join Date
    Jan 2005
    Location
    NW Ohio
    Posts
    1,371
    I second the "Check Compression"
    Proud Father of 7X National Champ Trevor Thatcher #404

    Click >>Trevor's 2013 Sponsor List

    www.Fierce Powersports.com

    www.TrevorThatcher.com

  5. #5
    Join Date
    Nov 2010
    Location
    belleville illinois
    Posts
    272
    Got it figured out. Changed Stator and fires up Bette cold and hot. Do check compression and had 180psi on 3 kicks so Im pretty confident it isn't a compression issue. Thanks for the input.
    Adam McGee Racing 11 running 2 Pitster Pro's and a Xtreme custom flat tracker. Thanks Firepower Minis, Tbolt Usa, Atv Fourplay, Pitster Pro BRM Offroad graphics, Titain Motorworks , Motocross Vests Champions Choice
    Moto X Outcast 2012 90cc 3rd place
    Steve Nace Indoor Winter Nationals St and TT 2011-2012 and 2012-2013 2nd place.

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •