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

1983 510 4T

Discussion in 'Vintage/Left Kickers' started by watto450, Feb 5, 2014.

  1. watto450 Husqvarna
    AA Class

    Location:
    Australia
    Husqvarna Motorcycle:
    1965 250, 1978 390 Auto, 1983 510 TX
    Thanks for the info guys... it is the end that sits on the valve tip...
  2. watto450 Husqvarna
    AA Class

    Location:
    Australia
    Husqvarna Motorcycle:
    1965 250, 1978 390 Auto, 1983 510 TX
    More questions..... anyone know if there is a cross-over 2T to 4T for the big end bearing..?? I have the crank apart... the rod is OK, as is the pin.. but wondering if I should put a bearing in it now that I have it this far apart.. Anyone know if a 2T bearing fits..?/ 500 CR..??
  3. ruwfo Administrator

    Location:
    NJ
    Husqvarna Motorcycle:
    1980 390CR, 1982 430CR, 1984 400WR
    Other Motorcycles:
    1985 250XC, 2016 FJ-09
    replace the bearings & then there's no worries later, cheap insurance
  4. watto450 Husqvarna
    AA Class

    Location:
    Australia
    Husqvarna Motorcycle:
    1965 250, 1978 390 Auto, 1983 510 TX
    Yes, I couldn't agree more ruwfo..but my question was ..does anyone know of a cross over from/to a 2T bearing..??
  5. Michel Dufayard Husqvarna
    Pro Class

    Location:
    France
    You can easily check all parts # on parts lists.
    That's what I do when I have the same question that you.
  6. watto450 Husqvarna
    AA Class

    Location:
    Australia
    Husqvarna Motorcycle:
    1965 250, 1978 390 Auto, 1983 510 TX
    Yes. Michel, and that would be good..but Hva...do not show the individual parts of the conrod assembly with individual part numbers... they did many years ago..but not anymore.. I would have thoght that the "original" concept of the 4T used a 500 CR bottom end....??.. anyway , will have to measure the crankpin and bearing cage width .. go from there. Andy at Hva in UK may be able to help..:applause:
  7. watto450 Husqvarna
    AA Class

    Location:
    Australia
    Husqvarna Motorcycle:
    1965 250, 1978 390 Auto, 1983 510 TX
    so..measurements are.. bearing cage width 15.70mm, crank pin diam 28mm and con rod big end i.d. 35mm...... any one able to check a 2T big end bearing for a comparison..??
  8. Michel Dufayard Husqvarna
    Pro Class

    Location:
    France
    Aren't the # bearings named in parts lists ?
  9. watto450 Husqvarna
    AA Class

    Location:
    Australia
    Husqvarna Motorcycle:
    1965 250, 1978 390 Auto, 1983 510 TX
    Not any more...they are shown in the exploded diagram.. and have a number ( eg..#6)..but aren't shown as an individual part..only a component of an assembly.. i.e. conrod assembly..
  10. watto450 Husqvarna
    AA Class

    Location:
    Australia
    Husqvarna Motorcycle:
    1965 250, 1978 390 Auto, 1983 510 TX
    Anyway...looks like Andy at HVA in the UK has a bearing that matches... great info.. now I can replace the big end bearing without needing a crank pin / con rod also..
  11. Michel Dufayard Husqvarna
    Pro Class

    Location:
    France
    I've looked at 83 2str and 4 str parts lists for the crankshaft bearings.
    2str left : 73 82 205 25
    2str right: 73 83 205 40

    4str left: 73 82 205 28
    4str right: 73 83 205 40
  12. watto450 Husqvarna
    AA Class

    Location:
    Australia
    Husqvarna Motorcycle:
    1965 250, 1978 390 Auto, 1983 510 TX
    Maybe my english isn't so good.. but I am talking about the big end bearing..not the crankshaft bearings.. I need the bearing that goes in the large end of the connecting rod...
  13. Michel Dufayard Husqvarna
    Pro Class

    Location:
    France
    LOL ! No your english is good, not mine . Sorry !
    So, Big end is on the crankweight .
  14. watto450 Husqvarna
    AA Class

    Location:
    Australia
    Husqvarna Motorcycle:
    1965 250, 1978 390 Auto, 1983 510 TX
    So..this where I am at with the engine......92mm Wiseco piston from Rik Smits.. Killblewhite valves and guides, new rocker shafts , rocker arm cam rollers and rocker shaft bushes, cam chain...cylinder being bored.. head being fettled... I note that the screen filter in the side of the cylinder is very dirty with garnet after the cylinder was (balsted) cleaned up.... is that screen supposed to be able to be removed..??.. Mine is stuck pretty good.... do I just wash it out..?? I note it is listed as a spare part, so I would think it shold be able to be removed..
  15. watto450 Husqvarna
    AA Class

    Location:
    Australia
    Husqvarna Motorcycle:
    1965 250, 1978 390 Auto, 1983 510 TX
    Next question.. mine has a K&N air filter....can't find a listing for it on K&N anymore..... any suggestions..?? I am a bit gun shy about a foam filter..even with a screen...:confused:
  16. PEZBerq Husqvarna
    AA Class

    Location:
    Brisbane, Australia
    Husqvarna Motorcycle:
    390AMX, 430XC, 240WR, 2x510TE, FE501
    Nothing wrong with using a foam filter with a backfire screen fitted. You can also remove the screen and use filter oil that is not flammable. They are available now days. Easiest is to keep the screen in my opinion.

    The oil filter you describe can be removed and cleaned and/or replaced. How did it get garnet on it? Garnet should not be used anywhere near an engine...asking for trouble. I use paint stripper or else soda blasting. You have a major clean up job ahead if you me thinks.
  17. stormer254 Husqvarna
    AA Class

    Location:
    England
    Husqvarna Motorcycle:
    More than I dare let her know
    Other Motorcycles:
    Yes!
    I extinguished a filter fire on a BSA Goldstar at a classic scramble, it was it's first meeting after a full restoration, to say the owner was panicking was an understatement. I think he took notice of the regulations after that and bought a fire extinguisher!
  18. PEZBerq Husqvarna
    AA Class

    Location:
    Brisbane, Australia
    Husqvarna Motorcycle:
    390AMX, 430XC, 240WR, 2x510TE, FE501
    Many bikes have caught fire at race meets. Most are fuel fires. Good maintenance and an understanding of the risks enables most people to build and maintain their bikes so it doesn't catch fire. Dusting an engine with a poor filter is another risk. Not too many dirt bikes run unoiled paper filters ... to my knowledge anyway. Don't know much about K&N filters but I assume off road buggies etc run them?
  19. Michel Dufayard Husqvarna
    Pro Class

    Location:
    France
    Not possible to find a 510 KN filter with all 510 owners in OZ ?:thinking:
  20. SA63 Husqvarna
    AA Class

    Location:
    Glasshouse Qld, Australia
    Husqvarna Motorcycle:
    84 510, 500 auto , 86 510
    the maico 250/490 81 foam air filter fits well and is cheap and readily available. I have always used them. I bought a air filter from HVA recently to compare, and its a maico filter!! HA !
    I have had a singed air filter, but itll only backfire if you hold the throttle open ( and it wont start anyway!) still I have a screen in there too for safety.
    I don't trust the paper filter as cleaning is suspect but each unto their own.
    If you are having trouble getting the screen filter out it may be because the cam chain has rubbed the ally deforming the chamber for the screen. I have had to dremel / flap wheel a cylinder oil holder back to shape, to allow the filter to slip in and out and open the area for more surface area =oil flow.
    Taliesin racing has rod kits at reasonable prices