Page 1 of 2 12 LastLast
Results 1 to 15 of 24

Thread: Overheating and oil questions

  1. #1
    Join Date
    25th February 2007 - 23:37
    Bike
    2010 CB600f & a couple of bucket RB's
    Location
    Wellington
    Posts
    584
    Blog Entries
    75

    Overheating and oil questions

    What solutions have you all come up with to deal with over heating issues?

    What coolant have you all found to be the best in buckets?

    What oil viscosity has been found the best in buckets?

    The reason I am asking as I am running into a few issues with my bucket over heating and before I start changing things I wanted to get some input from gurus such as yourselves.
    Yes 4 strokes are for homos. Homo-sapiens that is, who have realized bigger is better.

  2. #2
    Join Date
    16th November 2005 - 07:48
    Bike
    I just lost count
    Location
    The District of Waipa
    Posts
    3,607
    What engine are you running?

    For the record Qkkid was in my bed, not the other way round

    Quote Originally Posted by Yow Ling View Post
    Pumba is a wise man.

  3. #3
    Join Date
    25th February 2007 - 23:37
    Bike
    2010 CB600f & a couple of bucket RB's
    Location
    Wellington
    Posts
    584
    Blog Entries
    75
    Quote Originally Posted by Pumba View Post
    What engine are you running?
    I am running a CBR125 bottom end with a CBR150 top end and a motogp racing exhaust.
    Yes 4 strokes are for homos. Homo-sapiens that is, who have realized bigger is better.

  4. #4
    Join Date
    2nd January 2009 - 19:08
    Bike
    Bikeless.NNnnnooooooooo!
    Location
    PhuBia PDR Laos
    Posts
    1,638
    Blog Entries
    10
    I beleive an oil cooler may be the trick...and although I searched CBR125 and Oil Cooler and found a lot of hits....I found nothing bolt on..If you can find a place to plumb it it, it would be the way to go.

    Use a synthetic oil...beter high temp stability and a gnats dick less friction....a lower internal traction than mineral oils

  5. #5
    Join Date
    25th February 2007 - 23:37
    Bike
    2010 CB600f & a couple of bucket RB's
    Location
    Wellington
    Posts
    584
    Blog Entries
    75
    Quote Originally Posted by LBD View Post
    I beleive an oil cooler may be the trick...and although I searched CBR125 and Oil Cooler and found a lot of hits....I found nothing bolt on..If you can find a place to plumb it it, it would be the way to go.

    Use a synthetic oil...beter high temp stability and a gnats dick less friction....a lower internal traction than mineral oils
    What do you think of running 20w50 synthetic oil and 30% distilled water to 70% water wetter?

    The last time I looked at the running temp of the bike problems started developing when the bottom end reached 104 deg C.
    Yes 4 strokes are for homos. Homo-sapiens that is, who have realized bigger is better.

  6. #6
    Cooking oils should do the trick. I've put that in the pan a few times and it survives pretty well. Engine shouldn't be as hot as the pan.

    Get rid of the coolant and weld some cooling fins on. The water cooling craze is a bit retro now.

    If that fails you could just drop down to B Grade.

  7. #7
    Join Date
    2nd January 2009 - 19:08
    Bike
    Bikeless.NNnnnooooooooo!
    Location
    PhuBia PDR Laos
    Posts
    1,638
    Blog Entries
    10
    Quote Originally Posted by all4A50s View Post
    What do you think of running 20w50 synthetic oil and 30% distilled water to 70% water wetter?

    The last time I looked at the running temp of the bike problems started developing when the bottom end reached 104 deg C.
    Possibly stick with the OEM10W40...At leat I beleive that is the recomendation....But because you do do not race in very cold weather....if you have 20W50 ot should be fine...it will contribute slightly to higher temp because of the higher viscosity (More friction)

    Re coolant I am not familiar with water wetter....50%water and 50% organic glycol mix should lift the boil point sufficiently.

  8. #8
    Join Date
    7th September 2009 - 09:47
    Bike
    Yo momma
    Location
    Podunk USA
    Posts
    4,561
    Quote Originally Posted by Moooools View Post
    Get rid of the coolant and weld some cooling fins on. The water cooling craze is a bit retro now.

    .
    You're havin' a laugh, right???

  9. #9
    Join Date
    25th February 2007 - 23:37
    Bike
    2010 CB600f & a couple of bucket RB's
    Location
    Wellington
    Posts
    584
    Blog Entries
    75
    Quote Originally Posted by LBD View Post
    Possibly stick with the OEM10W40...At leat I beleive that is the recomendation....But because you do do not race in very cold weather....if you have 20W50 ot should be fine...it will contribute slightly to higher temp because of the higher viscosity (More friction)

    Re coolant I am not familiar with water wetter....50%water and 50% organic glycol mix should lift the boil point sufficiently.
    I'm running 10W40 at the moment. Hence wanting to try a different oil. Water wetter is the non-slippery coolant that is allowed to be used on race tracks.
    Yes 4 strokes are for homos. Homo-sapiens that is, who have realized bigger is better.

  10. #10
    Join Date
    12th February 2004 - 10:29
    Bike
    bucket FZR/MB100
    Location
    Henderson, Waitakere
    Posts
    4,230
    It's blardy hard to believe that a watercooled 4-stroke is overheating. Last I checked water wetter actually conducted less heat than plain old water. A good synthetic oil will handle all sorts of heat for a time. I always ran Mobil1 in my turbo McIntosh though there "should" be something better out there now but how you'd tell I don't know. It was a Castrol engineer who actually said I should use the Mobil1.

    Is there some problem with the cooling system like partially blocked radiator core?

  11. #11
    Join Date
    13th April 2005 - 12:00
    Bike
    Enfield cr250r
    Location
    Tokyo
    Posts
    3,430
    Blog Entries
    4
    Quote Originally Posted by all4A50s View Post
    I am running a CBR125 bottom end with a CBR150 top end and a motogp racing exhaust.
    you're not running it to lean by any chance?

    Stephen
    "Look, Madame, where we live, look how we live ... look at the life we have...The Republic has forgotten us."

  12. #12
    Join Date
    25th March 2004 - 17:22
    Bike
    RZ496/Street 765RS/GasGas/ etc etc
    Location
    Wellington. . ok the hutt
    Posts
    21,314
    Blog Entries
    2
    CBR 125 with 150 top end.

    hope you've changed the jetting & timing to cope with those changes.

    time to dig out a carby,
    Don't you look at my accountant.
    He's the only one I've got.

  13. #13
    Join Date
    12th February 2010 - 10:01
    Bike
    the best one
    Location
    in a dark place
    Posts
    182
    Quote Originally Posted by all4A50s View Post
    What solutions have you all come up with to deal with over heating issues?

    What coolant have you all found to be the best in buckets?

    What oil viscosity has been found the best in buckets?

    The reason I am asking as I am running into a few issues with my bucket over heating and before I start changing things I wanted to get some input from gurus such as yourselves.
    I find in excess of 200km/h is the best way to control temperature.
    .

  14. #14
    Join Date
    17th February 2008 - 17:10
    Bike
    gp125 rg50 rs125hybrid
    Location
    Helensville
    Posts
    2,882
    Blog Entries
    2
    Quote Originally Posted by aprilia_RS250 View Post
    I find in excess of 200km/h is the best way to control temperature.
    .
    thats had with so many corner in the way
    bet your aprilla coundn't do half that sort of speed at Mt Welly
    "Instructions are just the manufacturers opinion on how to install it" Tim Taylor of "Tool Time"
    “Saying what we think gives us a wider conversational range than saying what we know.” - Cullen Hightower

  15. #15
    Join Date
    12th February 2004 - 10:29
    Bike
    bucket FZR/MB100
    Location
    Henderson, Waitakere
    Posts
    4,230
    we could sell tickets to watch him try . . .

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Posting Permissions

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