Page 3 of 5 FirstFirst 12345 LastLast
Results 31 to 45 of 61

Thread: Question: Why was the biggest two-stroke bike 500cc?

  1. #31
    Join Date
    30th March 2004 - 11:00
    Bike
    2001 RC46
    Location
    Norfshaw
    Posts
    10,455
    Blog Entries
    17
    Quote Originally Posted by nudedaytona View Post
    I don't recall seeing any holes like that in the cylinder I recently took off.

    The only hole I can remember seeing was the exhaust hole. There were holes in the cylinder head, but they seemed to be for coolant to flow around on the outside of the cylinder.
    The pic is of a piston-ported two stroke (the piston covers/uncovers the ports). There were also two-strokes with disc valves, which had a spinning disc with holes in it.
    ... and that's what I think.

    Or summat.


    Or maybe not...

    Dunno really....


  2. #32
    Join Date
    26th May 2005 - 16:53
    Bike
    katzuki
    Location
    Auckland
    Posts
    373
    Link to Maico 760 article in my original post (#7) fixed.

    Specs I've seen for current 685cc LC model are 82HP, 101kg - bloody hell!

  3. #33
    Join Date
    31st December 2007 - 13:57
    Bike
    None
    Location
    NZ
    Posts
    312
    Quote Originally Posted by sidecar bob View Post
    Check out this weapon!!!
    Kenny Roberts' TZ750 dirt track racer.
    http://www.motorcyclemuseum.org/classics/bike.asp?id=42

    Kenny once said "They dont pay me enough to ride that thing"
    Who taught you your ferocious "advanced googling" skills Bob? I'm mightily impressed

  4. #34
    Join Date
    9th October 2003 - 11:00
    Bike
    2022 BMW RnineT Pure
    Location
    yes
    Posts
    14,591
    Blog Entries
    3
    Must be a 4 stroke RS250 then.

    The inside of an RGV250 looks like this, so your RS must too.



    The Junkers JU86D used by the Luftwaffe for High Altitude Recon (46,000ft in 1940!) was powered by the Junkers Jumo 205C a vertically opposed 2 stroke diesel.

    http://www.dundee.ac.uk/museum/mecheng/3001.htm

    Last edited by James Deuce; 17th July 2008 at 10:36.
    If a man is alone in the woods and there isn't a woke Hollywood around to call him racist, is he still white?



  5. #35
    Join Date
    31st October 2007 - 13:56
    Bike
    Aprilia RS250
    Location
    North Shore
    Posts
    190
    Oh yeah, I remember those holes now.

    So what would be easier, boring cylinder out or changing the ports.

  6. #36
    Join Date
    9th October 2003 - 11:00
    Bike
    2022 BMW RnineT Pure
    Location
    yes
    Posts
    14,591
    Blog Entries
    3
    There's plenty of info in making porting changes to RGVs. All of which are a bit dodgy.

    I know there is a 300cc kit out there for RS250s. You should do some digging on that because the end result will be better than having a go with a riffler file.

    The best thing you could possibly do is talk to this guy. The 465cc kit in my RG400 had RG500 and GSXR750 riders really scratching their heads.

    http://www.stanstephens.com/rgv.htm
    If a man is alone in the woods and there isn't a woke Hollywood around to call him racist, is he still white?



  7. #37
    Join Date
    17th February 2005 - 11:36
    Bike
    Bikes!
    Location
    Christchurch
    Posts
    9,649
    Long story short, the biggest ones available were the biggest they could make whilst still be elligible for racing. When the sizes for the classes got smaller, so did the Win on Sunday Sell on Monday bikes.

  8. #38
    Join Date
    5th December 2006 - 18:22
    Bike
    2000 Honda CBR600F4, RG50/GL145 Bucket
    Location
    Whitby, Wellington
    Posts
    2,009
    Quote Originally Posted by MVnut View Post
    ..... what's wrong with the handling....you ever ridden one ??
    Ahem ... have you? These bikes were lethal. The frame flexed so much that the geometry of the bike would change several times in a corner. Yes, they were the Falcon GTHO of the bike world ... they killed people. Oh ... and they sounded GREAT!

  9. #39
    Join Date
    17th February 2005 - 11:36
    Bike
    Bikes!
    Location
    Christchurch
    Posts
    9,649
    Quote Originally Posted by Grub View Post
    Ahem ... have you?
    Given that it's already Thursday, then yes, MVNut has probably ridden his one this week

  10. #40
    Join Date
    5th December 2006 - 18:22
    Bike
    2000 Honda CBR600F4, RG50/GL145 Bucket
    Location
    Whitby, Wellington
    Posts
    2,009
    Quote Originally Posted by imdying View Post
    Given that it's already Thursday, then yes, MVNut has probably ridden his one this week
    He's got one? He rides it? He's alive? He's mad!

  11. #41
    Join Date
    1st August 2007 - 21:07
    Bike
    HONDA HORNET 900
    Location
    North Shore.
    Posts
    1,006
    Quote Originally Posted by MVnut View Post
    Disc brake front on all H2s..... what's wrong with the handling....you ever ridden one ??
    Only repeating what i've been told (dont shoot the messenger)
    ChocolateWheels - Possibly the first (EX) GN rider to overtake a CBR600RR LEGITIMATELY and EX holder of the GN250 Land Speed Record.

  12. #42
    Join Date
    26th September 2007 - 13:52
    Bike
    Scorpio
    Location
    Tapu te Ranga
    Posts
    1,471
    Quote Originally Posted by ChocolateWheels View Post
    Kawasaki 750 triple 'widow maker'.
    My old man got to ride one once, scared the shits out of him!
    That bike was the fasting thing on the road at the time and had drum brakes front and rear crap handling too!
    Quote Originally Posted by MVnut View Post
    Disc brake front on all H2s..... what's wrong with the handling....you ever ridden one ??
    The 500 (H-1 aka Mach III) came out before the 750 (H-2 aka Mach IV) and originally had drum brakes. The 500 was the one that first got the scary reputation.

  13. #43
    Join Date
    8th October 2007 - 14:58
    Bike
    Loud and hoony
    Location
    Now
    Posts
    3,215
    Quote Originally Posted by Grub View Post
    He's got one? He rides it? He's alive? He's mad!
    If you only knew...

    He's not that mad though.
    It is preferential to refrain from the utilisation of grandiose verbiage in the circumstance that your intellectualisation can be expressed using comparatively simplistic lexicological entities. (...such as the word fuck.)

    Remember your humanity, and forget the rest. - Joseph Rotblat

  14. #44
    Join Date
    5th December 2006 - 18:22
    Bike
    2000 Honda CBR600F4, RG50/GL145 Bucket
    Location
    Whitby, Wellington
    Posts
    2,009
    Quote Originally Posted by Mikkel View Post
    If you only knew...
    Got a bit of an idea, I doubled the owner to work for 6 months on Mach III (drum brake) since he'd lost his licence on it .....

    He flies 747's for Air NZ now ... kinda worrying really

  15. #45
    Join Date
    21st February 2007 - 09:55
    Bike
    Anything I can straddle
    Location
    At the bottom of a glass
    Posts
    488
    So how many of you have ever ridden a bike with large drum brakes?

    4 leading shoe brakes had a lot of feel to them.
    "When you think of it,

    Lifes a bowl of ....MERDE"

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •