1. Husqvarna Motorcycles Made In Sweden - About 1988 and older

Sparkplug Caps - non resistor

Discussion in 'Vintage/Left Kickers' started by PEZBerq, Sep 21, 2015.

  1. PEZBerq Husqvarna
    AA Class

    Location:
    Brisbane, Australia
    Husqvarna Motorcycle:
    390AMX, 430XC, 240WR, 2x510TE, FE501
    I can't find a local source of non resistor sparkplug caps for my 84 Husky 510 TE. Does any one know where I can track down the straight resistor caps for a fourstroke with 10mm spark plugs. Can't believe how hard these are to find.


    Photo below of the rebuild. Just need the motor finished now.



    image.jpg image.jpg
  2. ruwfo Administrator

    Location:
    NJ
    Husqvarna Motorcycle:
    1980 390CR, 1982 430CR, 1984 400WR
    Other Motorcycles:
    1985 250XC, 2016 FJ-09
  3. PEZBerq Husqvarna
    AA Class

    Location:
    Brisbane, Australia
    Husqvarna Motorcycle:
    390AMX, 430XC, 240WR, 2x510TE, FE501
    I am after a non resistor plug. The less resistance the better chance of a good spark from an old ignition system! Can the resistor be removed from the cap?
  4. dartyppyt Husqvarna
    Pro Class

    Location:
    Illinois
    Husqvarna Motorcycle:
    17 TE 150, 82CR 500
    Other Motorcycles:
    82 125,250,430&500 79 390 83 250
    Try Honda XR 80 R. Around 80ish!
  5. stormer254 Husqvarna
    AA Class

    Location:
    England
    Husqvarna Motorcycle:
    More than I dare let her know
    Other Motorcycles:
    Yes!
  6. Michel Dufayard Husqvarna
    Pro Class

    Location:
    France
  7. PEZBerq Husqvarna
    AA Class

    Location:
    Brisbane, Australia
    Husqvarna Motorcycle:
    390AMX, 430XC, 240WR, 2x510TE, FE501
    Andy sells the 5kohm resistor caps. I will check out the Honda cap. Cheers
  8. Michel Dufayard Husqvarna
    Pro Class

    Location:
    France
  9. ajcmbrown Husqvarna
    Pro Class

    Location:
    Metung Victoria Australia
    Husqvarna Motorcycle:
    400WR 250WR 07 WR500 430AE 360AE
    Other Motorcycles:
    1985 500CR Ducati Multistrada 1200S
    If you look inside the resistor cap, on some you will see a brass section with a slot across it, just unscrew with a screwdriver, remove the resistor and replace it with a piece of metal the same length as the resistor that came out.
    I have done this with many resistor caps over the years, perhaps not tv friendly but it does ensure the full available spark at the plug.
    Tony.
    DaveM and dukkman like this.
  10. dukkman Husqvarna
    AA Class

    Location:
    Warwick Queensland Australia
    Husqvarna Motorcycle:
    85/WR 400,86/WR 240,83/430 is mates
    Other Motorcycles:
    69@71/TS90-76/TS100-72/DKW-78/PE
    Tony's right Pez.
    Xr400 cap does this.
    Use brass.
  11. 1982 XC 430 Husqvarna
    AA Class

    Location:
    Seattle Wa
    I went threw the same deal. I tried NGK to no avail. The easiest thing to do is to stop by Your local NAPA Dealer as they have them. A marine store that deals with outboard motors will to.
  12. DaveM Husqvarna
    AA Class

    Location:
    Adelaide, Australia
    Husqvarna Motorcycle:
    2001 TE 570
    Other Motorcycles:
    Motorised Bicycle
    Hi Guys,

    This is interesting,

    "Where resistance in the secondary loop is desired, it should be placed in only one of the three possible locations: wire or

    cap or plug.

    Otherwise there is too much resistance which results in a weaker spark."

    My bike has a resistor cap and the plugs I have been using are resistor plugs.

    I might try the trick of removing the resistor from the plug cap as well.

    Cheers, Dave.
  13. dartyppyt Husqvarna
    Pro Class

    Location:
    Illinois
    Husqvarna Motorcycle:
    17 TE 150, 82CR 500
    Other Motorcycles:
    82 125,250,430&500 79 390 83 250
    I know on my 08 Husky Wr 250. I had to run a non resistor plug.
    I accidentally put a resistor plug in and had all sorts of issues.
    Took me while to figure it out.