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Electrical issue (ignition?)

Discussion in 'FZR250.com - Archives' started by ByzKnight, Oct 29, 2005.

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  1. Spook

    Spook New Member

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    i reckon it is, although i don't know how much current your current car fuel pump is pulling - but most likely its a lot more than a standard fzr one. A car fuel pump has to do a lot more work and has a much bigger battery and charging system to run it - the fzr battery is tiny and it doesn't take much to start draining it.
    Personally i don't think your RR or alternator is the problem, after all, the charge is going up when you rev the bike and thats whats its supposed to do (and its not overcharging so RR is working). It still seems to me like theres something in there sucking the power (besides the headlights), and from you information, fuel pump is my tip.
    Now, who's taking bets??
     
    Spook, Oct 31, 2005
    #21
  2. Ciaran

    Ciaran New Member

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    Well all my betting money is on the ponies, but I am inclined to think it is the pump too. Check if the pump has any markings on it like a power rating or something.
     
    Ciaran, Oct 31, 2005
    #22
  3. ByzKnight

    ByzKnight New Member

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    Will do. Where si the pump located? How do i get it off? And, do i need to anything in prep other than turn the fuel switch to off?

    Thanks again.
     
    ByzKnight, Oct 31, 2005
    #23
  4. TiMBuS

    TiMBuS New Member

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    well the pump is easy to find - follow the fuel line that comes from the tap.

    I take it you haven't worked around fuel yet. Well, you'll learn about fuel...

    Have a low fuel level, like 2 litres.
    Turn the tap off.
    Take the fuel tank off, and plug the two holes on the tank with a sigle piece of hose (so it loops back and nothing leaks)
    Follow the rubber hose that comes out of the bottom plug on your bikes' fuel tap - it will lead you to the pump.
    Remove.. It's like 2 hoses and a plug to take out. Very easy.

    Now..
    Grab the piece of hose with the fuel filter attached to it, and plug it into the carbies, then plug the other end of that same hose into the reserve tap on your fuel tank. Congrats! you bypassed the fuel pump and tap. This will keep performance at a maximum (in fact I found it increases flow -more- than a pump when there's enough flow from the tank!)

    By now you'll have learnt to hate petrol.
     
    TiMBuS, Nov 1, 2005
    #24
  5. ByzKnight

    ByzKnight New Member

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    Thank you all for your help. I got a new 3ln fuel pump for my 2kr. I've taken the bike apart, which took too many hours. I have realised i'm not the most mechanically inclined guy. It took 40mins just to figure out that three screws around the fuel cap actually have nuts on the other end!!!! That can be very confusing when three come out smoothly, and three just don't (especially when you can't see the other side!).

    Back to the topic. I've decided to take pictures with a digital camera and upload em here. I would appreciate someone's expert knowledge on what exactly I have to do to replace the pump (which hose goes where etc..). TiMBUS....i don't want to bypass the pump, just replace it...are the steps the same? I can't even remove the actual fuel tank because i can't access the part it's bolted to. Also, the 3ln fuel pump didn't come with a fuel filter, and i can't find that on the bike either.

    ..............i'm so tired...so very tired....and really dirty.
     
    ByzKnight, Nov 3, 2005
    #25
  6. FZR Dude

    FZR Dude New Member

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    The tank should be bolted down in 2 places. one up front by the upper triple calmp and the other under the seat.

    On my 94 FZR1000 the fuel pump is located under the fuel tank rear support. On my 86 FZ750 it is located under the right side rear fairing.

    Both only have 2 fuel connections and one electrical connection. The pump is marked with arrows for fuel flow direction. Oh, and they want $207 USD for it.

    Use a regular in-line fuel filter, you'll be fine.

    Question: Why are you taking the fuel cap off? (just wondering)
     
    FZR Dude, Nov 3, 2005
    #26
  7. ByzKnight

    ByzKnight New Member

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    WIth pictures

    Got the old car pump out, here it is:

    [​IMG]


    As you can see it has no fuel filter! I think. I desperately need a fuel filter for the following pump (I just read your post FZR Dude, ..where do i get a regular in-line fuel filter?:

    [​IMG]

    Now here is the major issue (after the one above):

    [​IMG]

    As shown in the pic above, the electrical connection from the pump to the wires is not through a plug (like the pump i bout), but through two little metallic inserts. How do i convert the 3ln pump plug to be like those little inserts? Which wire of the 3ln goes to which wire on the bike? (There are 2 on both).

    Finding a way to attach the new pump is going to be difficult cause the old one bolted on the tank, but this one has a rubber casing.

    Any help on this issue would be greatly appreciated, thank you again.

    Damien.[/img]
     
    ByzKnight, Nov 3, 2005
    #27
  8. Ciaran

    Ciaran New Member

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    You should be able to get a new inline filter from the local Yamaha dealer, just make sure to get one that will fit the inside diameter of your fuel line.

    In my last post with the picture of the pump, the red braded line goes to the carburetors and the filter goes before the pump after being attached to the fuel tap. I don’t know if the pump is polarized or not, so someone else may know how to find out what wires to connect.
     
    Ciaran, Nov 3, 2005
    #28
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