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Hamz's CBR250RR

Discussion in 'Honda 250cc In-line 4's' started by Hamz, Apr 21, 2015.

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  1. Th3_Huntsman

    Th3_Huntsman Senior Member Contributing Member

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    Good work hamz. Peak power is 16k no point revving over that especially if yours is the later restricted one. The power just drops straight off. Less chance of over revving and valve bouncing at 18k as well :)
     
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    Th3_Huntsman, May 2, 2015
    #41
  2. GreyImport

    GreyImport Administrator Staff Member The Chief Contributing Member

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    Carbs may have been tuned individually .... which is the correct way to do it
    Stock 'turns out' is a starting point.

    After u have them apart and cleaned and new kit , and synced .... then its time to tune each one with the pilot/mixture screw
     
    GreyImport, May 2, 2015
    #42
  3. kiffsta

    kiffsta Senior Member

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    been there, done that :thumb_ups:
     
    kiffsta, May 2, 2015
    #43
  4. Hamz

    Hamz Well-Known Member

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    Maybe so @GreyImport, not saying i know more than you because i don't, by a long shot. But the whole rev range is a lot more stable now, no flat spot at 6-8k, and idle doesn't hunt anymore. and all that top end power comes back when i take my makeshift baffle out, which is actually quite restrictive....
    In saying that, we will see how things are after i clean out the carbs, and still need to put in my new filters when they arrive, and i think the thermostat is stuck open so will need to do that at some point, (Probably when i clean the carbs) and they probably still need balancing.

    Just a thought, maybe it was tuned with the old spark plugs, as a result different mixture levels. but you cant really adjust them on the bike while its running.....

    Well next on the list is tyres, and then a nice long ride to get it out of my system (like that will ever happen!)
     
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    Hamz, May 2, 2015
    #44
  5. GreyImport

    GreyImport Administrator Staff Member The Chief Contributing Member

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    As long as there is improvement mate .... thats the main thing :thumb_ups:

    A good run sure wont do it any harm also .... good for u also ! :D
     
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    GreyImport, May 2, 2015
    #45
  6. Mclaren

    Mclaren Well-Known Member Contributing Member

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    I rev mine to 17-18 during racing trying to keep between 12/13 to 17/18 as this is peak power once fully tuned if u lose power after 16 prob just needs a tinker as it should go little further after next weekend I will have footage of it so u can see
     
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    Mclaren, May 2, 2015
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  7. Pygmygod

    Pygmygod Well-Known Member

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    Well done.
    They are fun bikes to rev hey.
    I think they have their peak power around 16k mark so makes sense it wasn't doing much after 17k
     
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    Pygmygod, May 2, 2015
    #47
  8. Hamz

    Hamz Well-Known Member

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    yeah, like i said before, taking the baffle out seemed to fix this problem, i was almost lifting the wheel in 2nd taking off! But really really cant wait till i get plates, and take her for a proper run, just itching for a good ride!

    But not done yet, even once on the road, still want to either get new fairings (or paint and fix current ones), new bar ends, rim tape and black fairing bolt kit, and either HID's healights of just the high wattage 5000k-6000k white bulbs, still dont know if the little unit i have is a ballast or not? i think not...

    My little helper!
    20150502_155736 (Small).jpg

    And here it is, it looks to be more of just a relay box, hooked up to OE wiring, its got a beefy power and neggy cable going straight to the battery, so some decent bulbs will be fine i think. shouldn't need HID's

    But might need HID's on my FJ hmmmm ;)

    20150502_155750 (Small).jpg
     

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    Hamz, May 2, 2015
    #48
  9. Hamz

    Hamz Well-Known Member

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    I HAVE A NUMBER PLATE! shes now registered! yay. still heaps to do though, new tyres on, i think i put the front wheel on wrong, it sounds like a slow metal on metal grind when riding and wheel wobbles up and down? paranoia?

    And, who wants to take me for a ride? :p
     
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    Hamz, May 6, 2015
    #49
  10. Grasshopper

    Grasshopper Well-Known Member Dirty Wheel Club

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    Hey, nice work! Now let's see a pic with you in the bike :thumb_ups:.

    Did you get all those parts ok?
     
    Grasshopper, May 7, 2015
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  11. Moo

    Moo Plodge Racing!!!

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    awesome news mate!! wheel moves up and down?? bearings?? grinding could be the new pads on the disc?
     
    Moo, May 7, 2015
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  12. kiffsta

    kiffsta Senior Member

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    I would double check everything before you ride it, you want to have confidence if your front end
     
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    kiffsta, May 7, 2015
    #52
  13. Hamz

    Hamz Well-Known Member

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    New pads arent in yet, went for a ride with some guys from perth street bikes, the grinding noise seemed to quieren down, i think it may have been the pads. Front wheel feels straight and figured the wobbling was just bumps in the road in the tunnel lol. Aww i dont know about a shot of my mug on the bike! You might be lucky!
    I did use my impact wrench to put the bolt on the front axle back on, could it be too tight maybe? Was anothe thought....
    @Grasshopper
    , yes everything came yesterday. Will be tonights mission to do filter pads. Oil filter maybe? And what ever else i see fit. Love love love this little rocket. I see the joys of riding and riding with others, and splitting traffic is SOO good, no more waiting for idiots to get off there phone and take off at the lights :p
     
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    Hamz, May 7, 2015
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  14. GreyImport

    GreyImport Administrator Staff Member The Chief Contributing Member

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    I would say ... bad move ... getting it off yes ... but a torque wrench to tighten it up , not a jack hammer
     
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    GreyImport, May 7, 2015
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  15. Moo

    Moo Plodge Racing!!!

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    agreed!! dont use an impact gun on a bike :) put the axel in, use the brakes to center it and then tighten. make sure all parts are greased and no play in the bearings.
     
    Moo, May 7, 2015
    #55
  16. Hamz

    Hamz Well-Known Member

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    Where/what do I greese?
     
    Hamz, May 7, 2015
    #56
  17. Hamz

    Hamz Well-Known Member

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    I promise, i haven't lost my way, been on a couple of rides withe PSB boys, and pretty much riding every chance i get. I LOVE IT!
    Big update coming. Just gotta get the opposite of lazy ;)
     
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    Hamz, May 18, 2015
    #57
  18. Hamz

    Hamz Well-Known Member

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    Been meaning to update for a while, too busy riding and not documenting lol.

    So, new brake pads in! gotta love sintered pads
    20150507_183045 (Small).jpg
    20150507_183054 (Small).jpg

    Turns out old pads were ok.... OH well

    20150507_183102 (Small).jpg

    New Air filter, oohhh shiney!

    20150509_114352 (Small).jpg

    For some reason, i took a photo of this screw. its a nice screw, i like a nice screw, nothing beats a good ol screw....
    20150509_115953 (Small).jpg

    Ye old filter, rather filthy! so Straight in the bin!
    20150509_120002 (Small).jpg


    Bike warmed up and ready to dump the oil, wheres my new oil filter???? OH! i found it, it in the bun... oops haha
    yes bun as us kiwis say compare to the aussie accent
    20150509_120049 (Small).jpg

    and carbs, got them out and backed mixture screws of 1/8 a turn, they all seem to be doing great!

    20150509_120345 (Small).jpg
    my method for getting carbs off, very quick easy way to do it lol!
    20150509_120940 (Small).jpg

    Lovely lovely oil and anti oil... oil flush!
    20150509_124817 (Small).jpg

    New mirrors from Xcite! oops the left was broken in transit

    20150518_190930 (Small).jpg

    Fairings off and new windscreen installed. just realised i didnt take a photo with it together! sorry guys, i am a failure.... :(

    20150518_183207 (Small).jpg

    New Resivoir
    20150520_183352 (Small).jpg

    Braided lines :)
    20150520_183404 (Small).jpg 20150520_183413 (Small).jpg

    And New R6 Cylindar @Moo correct me if I'm wrong?

    20150520_184811 (Small).jpg

    And Finally the wonderful wonderful 17mm hex bolts that i need to undo to do my forks, which i dont have.. Fek you bolts, go die. ah well gave me time to update.

    20150520_213840 (Small).jpg

    Big thanks to @Moo for helping me (Practically did everything) with the brake upgrade, you could say we both bleed alot.....
     
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    Hamz, May 21, 2015
    #58
  19. Moo

    Moo Plodge Racing!!!

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    na mate you did a stella job....i just instructed and assisted ;) but never again do i want to bleed your brakes again....never.....

    the master and remote res are from a GSXR 600 if memory serves me correct ;)

    pics don't do this bike justice its mint!! and hats off to Hams for wanting to tackle all issues himself!! top bloke and top effort!
     
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    Moo, May 21, 2015
    #59
  20. Damus

    Damus She is a BEAST and riding it is comparable to sex Dirty Wheel Club

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    Come to Sydney and help me install braided moo =p
     
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    Damus, May 21, 2015
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