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Thread: 98 1100xx running rich.... sometimes

  1. #16

    Member #
    37161
    Bike(s)
    98 CBR 1100xx, 91 CBR 600F2, 91 VFR750F, 85 Wing
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    I know I'm going worse case scenario but about what would it cost to rebuild this engine? The bike itself is in amazingly good shape with only thirteen thousand miles?

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  3. #17

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    Re: 98 1100xx running rich.... sometimes

    13000 miles? She will do ten times that when you got the fuel leaks sorted.
    / Stromma

  4. #18

    Member #
    37161
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    98 CBR 1100xx, 91 CBR 600F2, 91 VFR750F, 85 Wing
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    Quote Originally Posted by Stromma View Post
    13000 miles? She will do ten times that when you got the fuel leaks sorted.
    Thank you for the vote of confidence. I'm just hoping that the almost gallon of gas that ended up in the crankcase hasn't done much damage.... Thank god I didn't ride it that far

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  6. #19

    Member #
    11268
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    Kawasaki gpz 900r 00 Blackbird
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    Re: 98 1100xx running rich.... sometimes

    It will be just fine! Change oil and clear out cylinders as advised.
    Get the leak sorted but bear in mind that you might still have problem with float cut off valves.
    This is a common problem and easily sorted but may take a few attempts.
    It is one of the joys of biking and once you have cracked it you have tens of thousands of happy riding miles ahead.
    Enjoy!

  7. #20

    Member #
    37161
    Bike(s)
    98 CBR 1100xx, 91 CBR 600F2, 91 VFR750F, 85 Wing
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    Greenbelt Maryland
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    Re: 98 1100xx running rich.... sometimes

    Quote Originally Posted by TigreST View Post
    Let me see if I can direct you correctly.

    You will need to lift the fuel tank. So remove seat. Undue the hold down bolt at the rear of the tank. Remove or provide access (unhook) the gray tank surround in fill panels...then you can tilt the tank up. You can support the tank at the rear with a block of wood of some sort..or use the tool kits wrench and slider handle as a prop to hold the tank up. Do not remove the tank if you were thinking of doing so. At least not yet. O.k. that's phase one.

    Phase two: Click on my link above and find the petcock and the vacuum supply line I have identifiec on the front face of the petcock. follow that vacuum supply line down to the nipple which should be below/between the #2 cylinder area on the cylinder head. Again..see my link and pictures which identifies the nipple. If you pull the small hose off that nipple at the cylinder head it is possible (hopeful) that fuel will run out of it or at least be present in it to some degree. If this is the case, fuel is present, it will mean that the diaphragm in the petcock is perhaps holed out and fuel in pasing directly to the crank case via that vacuum supply hose. There is a repair kit available for the petcock. Part # follows:

    COVER SET, PETCOCK

    16953-ML0-014

    Partzilla list them for approx. $33.00 https://www.partzilla.com/product/ho...fd76628a1d7fb6 your cost will vari with your local dealer.

    HTH.

    T.
    This is exactly what I needed. Going to go get the repair kit from my local dealer. "I get a serious discout that even partzilla can't beat" I'll keep ya'll informed of my progress. I was definitely being paranoid last night. Boy this stuff is frustratingly fun.. lol!

  8. #21

    Member #
    37161
    Bike(s)
    98 CBR 1100xx, 91 CBR 600F2, 91 VFR750F, 85 Wing
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    Greenbelt Maryland
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    Re: 98 1100xx running rich.... sometimes

    Quote Originally Posted by carler View Post
    It will be just fine! Change oil and clear out cylinders as advised.
    Get the leak sorted but bear in mind that you might still have problem with float cut off valves.
    This is a common problem and easily sorted but may take a few attempts.
    It is one of the joys of biking and once you have cracked it you have tens of thousands of happy riding miles ahead.
    Enjoy!
    Considering I've only had my license now for about seven months and I now own Five Bikes. one being a major project bike yeah I think I've caught the riding bug quite seriously.
    Para045 and XXGUY like this.

  9. #22

    Member #
    33250
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    CBR 1100
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    Re: 98 1100xx running rich.... sometimes

    I just replaced the very same part, the PETCOCK COVER SET from Partzilla last week
    but more for prevention and also, because I was rebuilding the whole system . Very simple fix.

    When the float valves are not closing, go for a rebuild kit, e.g. like this
    https://www.ebay.com/itm/Carburetor-...X/332819166250
    70 bucks, but well spend..

    I did this in the last weeks, cleaned and rebuild all 4 carbs.
    I would also recommend at least to clean the fuel tank, if not coat it from inside with special chemicals, as I did.

  10. #23

    Member #
    37161
    Bike(s)
    98 CBR 1100xx, 91 CBR 600F2, 91 VFR750F, 85 Wing
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    Re: 98 1100xx running rich.... sometimes

    Quote Originally Posted by Miroslav View Post
    I just replaced the very same part, the PETCOCK COVER SET from Partzilla last week
    but more for prevention and also, because I was rebuilding the whole system . Very simple fix.

    When the float valves are not closing, go for a rebuild kit, e.g. like this
    https://www.ebay.com/itm/Carburetor-...X/332819166250
    70 bucks, but well spend..

    I did this in the last weeks, cleaned and rebuild all 4 carbs.
    I would also recommend at least to clean the fuel tank, if not coat it from inside with special chemicals, as I did.
    I was very lucky because the person who long terms stored this bike knew what he or she was doing and had emptied the tank and so on so no varnish, no rust in tank or anything like that but then it may very well have been what dried out the petcock diaphragm.

  11. #24

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    Re: 98 1100xx running rich.... sometimes

    Guaranteed it did. It's a 2 edged sword. One side drain but everything dries out. Other side treat but that only lasts so long. Best bet is to store wet and fire it up every couple weeks to full operating temp. Block up rear wheel and run through the gears as gets to full temp.
    Route 191 formerly Route 666 Some say that this section of the
    road has 1100 curves in 95 miles.

  12. #25

    Member #
    69
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    98 Titanium CBR1100 XX Superblackbird
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    Re: 98 1100xx running rich.... sometimes

    Quote Originally Posted by beestoys View Post
    Guaranteed it did. It's a 2 edged sword. One side drain but everything dries out. Other side treat but that only lasts so long. Best bet is to store wet and fire it up every couple weeks to full operating temp. Block up rear wheel and run through the gears as gets to full temp.
    OR you could live somewhere you can ride 365 days a year and it wouldn't matter
    XXGUY likes this.
    98 TITANIUM Blackbird
    OzBB.net Administrator

  13. #26

    Member #
    37161
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    98 CBR 1100xx, 91 CBR 600F2, 91 VFR750F, 85 Wing
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    Re: 98 1100xx running rich.... sometimes

    Quote Originally Posted by Para045 View Post
    OR you could live somewhere you can ride 365 days a year and it wouldn't matter
    Ironically this is the harshest winter we've had in years I was totally looking forward to a nice mild winter so I could ride more "just got my license about 8 months ago" but Noooo!!! and I think this bike was long terms stored not becuase of weather but because it just wasn't being used. although I can't know for sure.

  14. #27

    Member #
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    98 CBR 1100xx, 91 CBR 600F2, 91 VFR750F, 85 Wing
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    Just an update. I've fixed the petcock and put Everything back together ran it to warm up with standard oil and filter them drained and filled with semi synthetic... Runs like a champ now but does puff blue smoke when you Rev it. I'm hoping that goes away. Otherwise I'll have to do a compression check... Sigh
    SouthTexas11XX likes this.

  15. #28

    Member #
    16478
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    99 CBR11000xx, Honda F501 RotoTiller
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    Re: 98 1100xx running rich.... sometimes

    You go Man!
    Found the problem and runs like a banshee,,, my best guess is the old lube will burn off with no smoke afterwards and puts a BIG grin on your face because she is running fine.
    I would just go out and run the snot out of her to see how she holds up. If smoke continues I have seen motors on e-bay for $800
    Time will tell.

    STex, out

    Oh! and welcome to our new type of Winters.
    Came into this world with nothing and still have it all.

  16. #29

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    2000 blackbird
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    Re: 98 1100xx running rich.... sometimes

    Quote Originally Posted by SouthTexas11XX View Post
    You go Man!
    Found the problem and runs like a banshee,,, my best guess is the old lube will burn off with no smoke afterwards and puts a BIG grin on your face because she is running fine.
    I would just go out and run the snot out of her to see how she holds up. If smoke continues I have seen motors on e-bay for $800
    Time will tell.

    STex, out

    Oh! and welcome to our new type of Winters.
    AKA "an Italian tune up"

  17. #30

    Member #
    37161
    Bike(s)
    98 CBR 1100xx, 91 CBR 600F2, 91 VFR750F, 85 Wing
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    Greenbelt Maryland
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    [QUOTE=SouthTexas11XX;624651]You go Man!
    Found the problem and runs like a banshee,,, my best guess is the old lube will burn off with no smoke afterwards and puts a BIG grin on your face because she is running fine.
    I would just go out and run the snot out of her to see how she holds up. If smoke continues I have seen motors on e-bay for $800
    Time will tell.


    STex, out

    Oh! and welcome to our new type of Winters.

    Yeah... Running the snot out of her alright. But I also just picked up a 2017 CBR 1000rr and have been putting the break in miles on her. Yes I'll admit I have a problem, lol. But hey this is inheritance money and...

    To get a little personal, this new lifestyle choice also stems from the fact that I'm recovering from a pretty nasty opiate addiction. " you can't really ride a bike when you're all messed up on heroin..." so this money is being spent on a new addiction a better addiction I must say... Ok personal mode off, sorry for the interruption. But the more I talk about it the less power it has...

    The 1000rr and the 1100xx have very similar power levels but one is a wicked fast barcolounger and the other is just wicked fast, hehe. I can't put too words how awesome this hobby and the people in it have been.

    Oh and Beauty also has a full Yoshimura exhaust and we don't think it's been tuned some of the guys at my dealer think the blues are from that, I'll check the carbs for dynojet parts the next chance I get. So far my CBR 600 and my vfr750f both need dynojet kits the vfr kit has been purchased but not installed yet, just got the exhaust put on. Oh and did I mention tinkering on bikes is the most awesome thing also!


 
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