1. 4 Stroke Husqvarna Motorcycles Made In Italy - About 1989 to 2014
    TE = 4st Enduro & TC = 4st Cross

Radiator Cap

Discussion in '4 Stroke' started by BCVisin, Feb 8, 2009.

  1. BCVisin Husqvarna
    AA Class

    Location:
    Temecula, CA
    So I am thinking that my overheating problem may be because of my radiator cap not holding pressure. I want to get an extra cap, but don't know if there is a certain type to get. Anyone have an extra they wanna sell me, or know where I can get one before next Friday?
  2. WoodsChick Administrator

    Location:
    Oakland, CA Miramonte, CA
    Husqvarna Motorcycle:
    3 Terras, 2 `07 SM610s, `09 WB165,
    Other Motorcycles:
    KTM, GasGas, Suzuki, Honda

    I had a GasGas that overheated. After ruling out every other possible reason it could be overheating, I put a KTM radiator cap on it that was rated for higher pressure. Problem solved.

    Unfortunately I don't have a radiator cap for you, but good luck!


    WoodsChick
  3. BCVisin Husqvarna
    AA Class

    Location:
    Temecula, CA
    Called Dan at Motoexotica. He's shipping a new rad cap today. YAY! Cant be Friday fast enough for me.
  4. robertaccio Husqvarna
    Pro Class

    Location:
    San Diego, Ca
    Husqvarna Motorcycle:
    2021 Husqvarna TE300i
    Other Motorcycles:
    99 HusqvarnaTE610, 94 Husaberg FC501
    subject to varying opinions
    My 08TXC450 has a KX80 1.8 bar cap (26.46psi), CV4 silicon hoses, high pressure cross over tube, GFBN OEM German automotive Tee fitting, with the stock catch tank and filled with Maxima Cool aide (pink stuff). I ride alot of very rocky technical crap and rarely see any steam,,,,PS the higher pressure does stress the water pump seals but mine is still hangin tough. R
  5. Bobby Husqvarna
    AA Class

    Location:
    Woodstock, GA
    Husqvarna Motorcycle:
    '13 TXC310Rx2,
    Other Motorcycles:
    G450X, HP2E, 10 R12ADV, GasGas280
    Ditto on the higher pressure radiator cap. There are both a 1.6 and 1.8bar cap available for the KX's, just make sure your hoses and clamps are in good shape along with an aluminum Y and re-inforced cross-over tube and you'll be holding fluids in better.
  6. Motosportz CH Sponsor

    Location:
    Vancouver WA
    Husqvarna Motorcycle:
    2021 TE250i, 570 Berg, 500 KTM, 790R
    Other Motorcycles:
    many
    Make sure your not running lean and try not to use the clutch a lot on overheating situations.
  7. BCVisin Husqvarna
    AA Class

    Location:
    Temecula, CA
    Well I still had the overheating problem on the Baja trip. George and Mike and I were trying to troubleshoot it, and mike suggested a pin hole leak on one of the radiators. I discounted that because I had never seen any steam or fluid come out of them. The temp was cool, so the bike never really went above 120 - 130 Well, the last day as we rode the beach into San Felipe my bike began to heat up to about 150 and reached 170. I stopped, and saw steam coming out of my left side radiator. I guess Mike was right. I'm shipping the radiator off to Myler's today.

    -Blake
  8. fitness2go Husqvarna
    AA Class

    Location:
    Seattle WA
    Kelly hit the nail on the head...I have a Rekluse that was working the hell out of the clutch. Add miles of soft beach sand to that equation and the fact that I boiled out most of my radiator fluid and you get 300 degree temps Anyway, I was thankfull to have the uptite Y and updated crossover tube as I'm sure thinks would have either melted or popped.

  9. BCVisin Husqvarna
    AA Class

    Location:
    Temecula, CA
    Ya....Dave and I were overheating buddies on that trip! :cheers::thumbsup:
  10. meslowmelive Husqvarna
    B Class

    my recluse has added some overheating issues , mainly on hills ,tight single track is okay its just when the clutch is under pressure
  11. Bobby Husqvarna
    AA Class

    Location:
    Woodstock, GA
    Husqvarna Motorcycle:
    '13 TXC310Rx2,
    Other Motorcycles:
    G450X, HP2E, 10 R12ADV, GasGas280
    I don't think the Rekluse is fine tuned enough for tight singletrack type use on the HSQ's personally. I have an 04 KTM 525SX with a rekluse that is a major single track sleeper. I haven't seen a guy yet be completely taken by it's ease and grunt speed through tight trees.

    However with my TXC510, it has been severly overheated due to the rekluse during a race and it never goes to full lock up early enought. Regardless it still launches the front in the air right off of throttle if desired, but it's got too long of a duration from initial lock up to full lock up. I'm running 9 tungsten balls and still want better lock up off the bottom.

    Anyhow, I have found that using engine ice, Uptite Y and stiffer rad cap has helped my hot running issues for the time being