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Thread: VFR owners' thread, for VFRPS members and prospective members

  1. #1411
    Join Date
    7th May 2010 - 19:43
    Bike
    2004 SV1K
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    Dunedin
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    Quote Originally Posted by motorbyclist View Post


    what?

    old oil and filter wouldn't have much to do with it but you should be doing those anyway....
    Yuh, Changed the Oil and Filter, Turns out it was never changed like I was told, probably should have changed it when I originally brought the bike anyway, it was probably 10k overdue haha, Seems to have actually improved alot of my little problems including the clutch problem.

  2. #1412
    Join Date
    15th November 2008 - 07:27
    Bike
    vfr400 NC30, SRX600 project
    Location
    Glen Eden, Auckland
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    Quote Originally Posted by motorbyclist View Post
    He's not - you'll be copying me
    jesus.

    is the vacuum cylinder running lean too?

    get a new vacuum line. Ask nicely and I'll see if i've got any left in the shed
    Quite likely. That would explain the feeling better - like it runs on 3 occasionally when pulling hard but not all the time...
    Mate that'd be awesome, I have tubes of many kinds, but all of em were a tad too short. Choice of beer?chocolate bikkies?

    Still more concerned about the hydrolocking though (happened again once yesterday, fuel tap still working fine, must have been the fuel in the line/float). When the stars align and have a sunny day when I have free time the carbs'll come off and I'll check the float seat/needle again and do what you suggested.

  3. #1413
    Join Date
    15th June 2008 - 18:13
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    rego on hold nick smith special
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    NZ
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    How many L/100km km/L are you guys getting on your V4's at the moment and with what sort of riding?
    ...Full throttle till you see god, then brake.

  4. #1414
    Join Date
    7th May 2010 - 19:43
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    2004 SV1K
    Location
    Dunedin
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    2,103
    Hey guys, My VFR400 NC30 is restricted darn it, can anyone help me out with unrestricting it? Just had it at the MCR Dyno shootout and I got 52.39 HP and my CBR250 got 38.8

  5. #1415
    Join Date
    4th May 2006 - 22:17
    Bike
    1987 GPX 250
    Location
    New Zealand
    Posts
    3,445
    The only restriction that came on VFR was a 180kph speed limiter for japanese models. Wikipedia says otherwise but wikipedia is wrong i believe.

    http://www.vsource.org/VFR-RVF_files...estriction.htm

    52HP sounds a little low (not much though) but were there any other 400s to compare with? Or 250s to compare with?

    No point chasing a higher number if the dyno reads low.

  6. #1416
    Join Date
    15th June 2008 - 18:13
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    Yeah you can only compare with the same dyno.

    If it really is low, maybe your main jets are not right, air filter dirty, induction setup bad etc.
    ...Full throttle till you see god, then brake.

  7. #1417
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    7th May 2010 - 19:43
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    2004 SV1K
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    Dunedin
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    They said they had a problem getting it to red, apparently it would flutter before it got to redline indicating it had some kind of rev limiter I assumed this would be due to the restiction, but it says on my Dyno sheet, 52.39HP and 183km/h.

    And my 250 put out 38.8HP and 157km/h and the 250 had no such problems, I can take a photo and upload the dyno sheet

  8. #1418
    Join Date
    7th May 2010 - 19:43
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    2004 SV1K
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    Dunedin
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    Click image for larger version. 

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    There it is there.

  9. #1419
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    4th May 2006 - 22:17
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    1987 GPX 250
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    New Zealand
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    Yeah it seems you have the 180kph limiter. Read the link i posted on how to get rid of it. 52HP doesn't mean a whole lot unless you get something to compare it too. Clean the carbs and air filter and go back to see if you get better numbers.

    I wouldn't worry about numbers though. Just be happy your 20year old bike still runs strong!

  10. #1420
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    7th May 2010 - 19:43
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    2004 SV1K
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    Quote Originally Posted by sil3nt View Post
    Yeah it seems you have the 180kph limiter. Read the link i posted on how to get rid of it. 52HP doesn't mean a whole lot unless you get something to compare it too. Clean the carbs and air filter and go back to see if you get better numbers.

    I wouldn't worry about numbers though. Just be happy your 20year old bike still runs strong!
    Haha yeah ae, it has a new K & N filter and I have recently done the Carbs,its running stock though, so I would assume freeing up the system with a better exhaust etc would increase a little

  11. #1421
    Join Date
    15th June 2008 - 18:13
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    rego on hold nick smith special
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    Best dyno test if you are worried about peak numbers is down the quarter mile really.

    Practice your launches and aim for late 12's 13 second (70kg rider). If you can't get a 13 something is wrong.
    ...Full throttle till you see god, then brake.

  12. #1422
    Join Date
    7th May 2010 - 19:43
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    2004 SV1K
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    Dunedin
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    Quote Originally Posted by racefactory View Post
    Best dyno test if you are worried about peak numbers is down the quarter mile really.

    Practice your launches and aim for late 12's 13 second (70kg rider). If you can't get a 13 something is wrong.

    70kg rider. Well there is your first problem lmao.

  13. #1423
    Join Date
    15th November 2008 - 07:27
    Bike
    vfr400 NC30, SRX600 project
    Location
    Glen Eden, Auckland
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    1,120
    Is There anyone on here from welly who knows what they're doing and is able to check out an rvf for me? http://www.trademe.co.nz/Trade-Me-Mo...-374891785.htm

  14. #1424
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    7th May 2010 - 19:43
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    2004 SV1K
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    Dunedin
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    In Duds town sorry,

    Hey how did you get on with those fairings? Im looking at getting some depending on your review haha

  15. #1425
    Join Date
    15th November 2008 - 07:27
    Bike
    vfr400 NC30, SRX600 project
    Location
    Glen Eden, Auckland
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    1,120
    I've sent the guy photos/a video of them, he replied wednesday saying he was getting back to me in a couple of days. Sent them an email this evening asking what was happening.
    All good. So tempted by the RVF!:-P on the bright side, my VFR seems sorted now! I just loved the clutch and look of racefactory's RVF!:-P

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