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Project FZR250 2KR 3HX1 resto-1project

Discussion in 'Your 250cc Projects' started by BlackBladeDesign, Aug 2, 2018.

  1. BlackBladeDesign

    BlackBladeDesign Smokin Premium Member

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    Yeah the fans working. About halfway up the temp gauge it comes on
     
  2. GreyImport

    GreyImport Administrator Staff Member The Big Cheese Contributing Member

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    Did u flush out the cooling system before? ... 3LN has 2 block drain bolts at the front
    Pull apart the thermostat housing?
    How about the water pump ?
    Radiator clean ?

    Did u use red longlife coolant?

    New thermostat and cap would be a good move
     
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  3. BlackBladeDesign

    BlackBladeDesign Smokin Premium Member

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    What brand of coolant do you use?and do you get it pre mixed or do you get the concentrate and mix it a specific way?
     
    Last edited: Dec 10, 2018
  4. GreyImport

    GreyImport Administrator Staff Member The Big Cheese Contributing Member

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    RLLTU5-large (Small).jpg
     
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  5. BlackBladeDesign

    BlackBladeDesign Smokin Premium Member

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    Didn't expect so much of a difference with nulon, way better than the cheap garbage I had in it before. Flushed the old stuff out with water.

    Thanks. @GreyImport
     
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  6. BlackBladeDesign

    BlackBladeDesign Smokin Premium Member

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    .
    Anyone experienced a temp gauge going crazy on their FZR? It's acting nornal until it gets to halfway on the gauge, then it starts going absolutely mental flicking from hot to cold rapidly unless I'm over 9k(ish) rpm.

    I can verify the heat is still reasonable as when I pull over and stop running the bike it's acting normal.

    Could this be a loose connection that's constantly going on and off because of vibration? Everything else is working normally, electrically.

    Anyway I've put 2,000km on Her, bloody love it. it's a really forgiving bike too in most cases(unless you get detoured onto a gravel road that's 26km. Intense!)
    IMAG0399.jpg
     
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  7. Murdo

    Murdo The Good Doctor Staff Member Premium Member Ride and Events Crew Contributing Member

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    The sender to the gauge works on earthing the gauge through the engine/frame. Sounds like a bare wire is touching somewhere and shorting to earth.
     
  8. BlackBladeDesign

    BlackBladeDesign Smokin Premium Member

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    My Bike:
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    Turns out my fzr is not a dirt bike.
    IMAG0619.jpg IMAG0618.jpg
    I was riding at night and turned into a wide looking corner,
    but the inside of the 'wide' road was a section of gravel that I didn't see.
    Luckily I was going really slow (probably 20km/h when I hit and 5km/h when I fell over, so nothing really bad happened.
    Still though first accident as a rider. Better to crash slow than fast I suppose.

    I think I got off pretty easy as far as bike crashes go, it was more embarrassing than scary/painful
     
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  9. Linkin

    Linkin The Apprentice Premium Member Dirty Wheel Club Contributing Member

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    Damn that sucks!

    Did you panic brake? The worst thing you can do on loose surface is to use the front brake, instant loss of front traction and it will tuck in and drop out from under you. Rear brake to slow down/correct trajectory or look back to where you want to be and power out...

    Had a few lowsides, all right hand side, to know a few things.
     
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  10. Jo Verhelst

    Jo Verhelst Forty2 Premium Member Contributing Member

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    goodlanding.jpg
     
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  11. BlackBladeDesign

    BlackBladeDesign Smokin Premium Member

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    So what happened was I was slowing down for this left-hand corner, but it looked like a really long arcing, wide corner(couldnt see it with my lights). Thing thing is between this gravel section and road there's a drop of about 6-8 inches.

    So when I was leaning in for the corner, and had that sudden drop the bike just went sideways(highside) immediately I ate ****. I'm pretty sure I didn't brake but it happened really suddenly, I may have done.
     
  12. maelstrom

    maelstrom LiteTek Staff Member Premium Member 250cc Vendor Contributing Member

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    Well at least no major damage to you or the bike. Did you get the overheating issue sorted?
     
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  13. BlackBladeDesign

    BlackBladeDesign Smokin Premium Member

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    Yeah I got the overheating sorted, the problem was the coolant I was using. And the temp gauge sensor connector was loose which stopped the fan working but it's all good now
     
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  14. BlackBladeDesign

    BlackBladeDesign Smokin Premium Member

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  15. maelstrom

    maelstrom LiteTek Staff Member Premium Member 250cc Vendor Contributing Member

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    I think @my67xr fitted LED bulbs and maybe @Linkin did something similar. I would recommend fitting a Shindengen Mosfet Reg/Rec also. The OEM one is rubbish. You can get a used one from some of the late model Yamahas.
     
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    Last edited: Jun 6, 2019
  16. BlackBladeDesign

    BlackBladeDesign Smokin Premium Member

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    With Shindengen Recs/regs do you have a specific one I can look at to install? Or even what later model bikes have it cause I can maybe get it from a jap bike wrecker I know.
     
  17. maelstrom

    maelstrom LiteTek Staff Member Premium Member 250cc Vendor Contributing Member

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    This was mentioned previously and here is where I bought a new one https://roadstercycle.com/ not many big bikes in Thailand so difficult to get used.
     
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  18. BlackBladeDesign

    BlackBladeDesign Smokin Premium Member

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    Ah, right. Thanks
     
  19. maelstrom

    maelstrom LiteTek Staff Member Premium Member 250cc Vendor Contributing Member

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    I think if you follow the LED mod that @my67xr did and the new reg-rec you will have good results.
     
  20. BlackBladeDesign

    BlackBladeDesign Smokin Premium Member

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    IMAG1080~2.jpg

    So uhh..... This a regulator issue or is the battery to be replaced? With the headlights on its at 18.1v, without the bike running. Seems a tad bit wrong.

    (Katana sport battery, the cheap bastard that you have to fill yourself from new)
     
    Last edited: Jun 13, 2019

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