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  1. #1

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    780 slt wont start - no fuel in carbs

    fuel is getting up to the carbs but wont pull the fuel in - it seems . i can get it to fire if i pour a small anmount into the carbs , it seems odd that i have three carbs and all seem dry of fuel . but it has been neglected . i posted a few minutes ago but cant find the post


  2. #2
    She likes the bike. But the ski gets her wet!!!! xlint89's Avatar
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    Remove the carbs and look for stuck needle valves, damaged diaphragms, clogged internal filters, and varnish clogging the jets.

  3. #3

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    carb removal and clean

    thanks for the reply - i have looked over the rebuild sheets available and have reoved the carbs - thanks for discussions previous to this on removal and the archived info on carb rebuild . what is the usual on the carb problem - is it needle and seats or diaghrams - i am a little nervous on pulling them apart but if i could just get a heads up i believe it would help - thanks

  4. #4

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    cleaning mikuni carbs the easy way - your input please

    the machine is a 96 polaris 780 slt and i am not all that much of a rebuilder of triple carbs or for that matter single 38-44 s please your input would help - is it a usual diaghram problem or needle and seat ? your input please - all i am sure of is the fuel was getting to the 3 inlets of the fuel pumps and when i removed the line at the carbs - all three had a fuel pulse but would not fire and when fuel was dropped in the carb intake it lit , so off came the carbs .

  5. #5
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    The diaphragm and needle and seat are under the same cover. Just disassemble and reassemble one carb at a time so you can have another one to reference if you get lost. There are exploded parts views that can be found too so you can get everything correctly assembled. On the other side of the carb where the fuel inlets are, there is a filter that may be clogged. Check that as well and clean/replace as necessary. The only way to get these clean is to disassemble and manually clean every passage way with carb cleaner and compressed air. Make sure all of the rubber parts are still soft and flexible, not dried or cracked. You have to disassemble and clean them, and rebuild as necessary. There is no easy way around it.

  6. #6

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    thanks very much , i will try and complete the task

  7. #7
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    Quote Originally Posted by ktheake View Post
    thanks very much , i will try and complete the task
    You can do it!!!!!!

  8. #8
    She likes the bike. But the ski gets her wet!!!! xlint89's Avatar
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    Bryan hit the nail on the head.

    John Zigler sells a really nice carb rebuild kit for the Fuji engines at a great price. All genuine Mikuni parts as recommended.

  9. #9

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    took the diaghram cover off and there was oil from behind the diaghram -

    i suspect it is normakl to find oil in behind the diaghram since this is where the oil injection nipple is . there is good movement of the spring in behind this diaghram and no holes that i could see , seems fairly flexible too - but i do need a triple kit and john zigler is the guy is he , i need his email or co contact so i can ask for the three kits . and the intake gaskets are intact but do youi get them in the kits or do you reuse , they had quite a torque to the stud nuts for the manifold - what is correct for torque on these

  10. #10
    David Drkvampire2001's Avatar
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