king pin fuel injectors | Victory Motorcycles: Motorcycle Forums

king pin fuel injectors

Discussion in 'Victory Kingpin' started by smittybilt, Sep 14, 2018.

  1. smittybilt

    smittybilt New Member

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    I have a question about the fuel injectors on my KingPin. Is there a procedure for cleaning the actual injectors? I think one is clogged bike is stumbling at idle and i have sprayed the throttle body rubber base with fuel injector cleaner and it did not effect the idle. So i think that good to go. I a going to remove the throttle body and clean it and pull the injectors. just wondering if there is a specific procedure for opening them and cleaning them. Any response will me helpful
    thanks
    Smitty
     
  2. kaitiff

    kaitiff Well-Known Member

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    I know I was having a few issues with my injectors on my KP a while back. Turned out that the o-rings for the injectors were just about disintegrated. Just for FYI.. I too had sprayed my boot to see if the idle would change and it didn't... yet when they took apart my throttle body and removed the boot it literally fell apart, but at the BASE, not at the top like most people expect. Just some food for thought.
     
  3. vision_nut

    vision_nut Moderator Staff Member Moderator

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  4. smittybilt

    smittybilt New Member

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    its a 2006 with lots of lloyds parts, andrews cams, 2 into 1 pipe, arlen ness big sucker intake, 106 over bore, replaced the wires last season with a set of accell wires also running E3 plugs. runs strong at higher RPMS. i was able to pull the injectors today and triggered them with a 9 volt battery and and sprayed them with some injector cleaner and sprayed the hell out of the throttle body and cleaned the air filter seems to be better i will check it out in the morning when i ride to church.
    Thanks to everyone who replied to my post hope you all have a great rest of your weekend
    Smitty
     
  5. jedi-mcfly

    jedi-mcfly Well-Known Member

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    ...spraying the throttle boot at idle won't be an accurate test of the rubber : at hiway speeds (3000 rpm) there is allot more suction than at idle ...like @kaitiff said they typically disintegrate where they connect to the head.
     
  6. Half_Crazy

    Half_Crazy Well-Known Member

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  7. poptop

    poptop Well-Known Member

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    Limited problems with 08 and above but prior to a few with above mentioned!
    Not a bad idea to run a bit of injector cleaner like sea foam injector cleaner once in a while,if that does not clear it up ! O rings or rubbers
     
  8. Half_Crazy

    Half_Crazy Well-Known Member

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    106 is a Stroker crank, not an overbore.

    Just use the OEM plugs from NGK. That's as good as it gets.

    It is inevitable that you will replace the rubber parts... throttle body adaptor, cap-offs, O-rings, fuel lines, fuel filters.... might as well get it over with. Rubber DOES NOT LIVE THAT LONG.

    1.jpg

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  9. jedi-mcfly

    jedi-mcfly Well-Known Member

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    My 05 is stumbling at a constant low speed/rpm (2400 steady) but is ok when under hard acceleration... I thought I got bad gas or bad gas is causing a obstruction, but now I have a few tanks worth of volume has gone through it : but maybe my 0-rings are the culprit.
     
    Last edited: Jun 30, 2020 at 7:07 AM
  10. Half_Crazy

    Half_Crazy Well-Known Member

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    O-rings on the injectors...
    Cap-offs...
    Throttle body adaptor and o-rings...

    Old rubber.
     
  11. jedi-mcfly

    jedi-mcfly Well-Known Member

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    caps are replaced and intact
    changed out the TB adapter cpl yrs ago

    so I am thinking 0-rings on the injectors

    guess I will dig out the service bible and see it it lists the dimensions/size
     
    Last edited: Jun 30, 2020 at 7:06 AM
  12. Ghostrider25

    Ghostrider25 Lone Rider of the Apocolypse

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    @jedi-mcfly It's funny, I was just thinking about all this stuff this morning before I got up to go to work. It's time for a pretty major service and I was going through the mental checklist. 6 years, 45,000 miles - maybe it's time to just have them change all of this stuff. Like Larry said, the rubber will wear out and in my case some of it might have already. The bike is still running good, but I am noticing little things - a stumble here and there (not under load), not quite as quick, reduced fuelly - I don't know. I try to be somewhat proactive with this kind of thing. At least I'll have the conversation with them.
     
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  13. jedi-mcfly

    jedi-mcfly Well-Known Member

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    I have near 50,000 miles on mine and I think I will read up a bit and pull the injectors and inspect the 0-rings just out of curiosity ...after I grab a new set of plugs and put them in too.
     
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  14. jedi-mcfly

    jedi-mcfly Well-Known Member

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    ...cleaned and tightened the battery terminals - new plugs - and a TPS re-set and she is rolling down the road perfect again :0)
     
  15. Ghostrider25

    Ghostrider25 Lone Rider of the Apocolypse

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    Nice. TPS reset, eh? Interesting. Here is how much I don't know! Is that something that is done as part of a normal service? I have heard enough people talk about it, almost seems like it should be. Anyway, glad to hear it's running well again.
     
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