Author Topic: Four stroke options  (Read 23909 times)

0 Members and 1 Guest are viewing this topic.

Offline mboddy

  • A-Grade
  • ****
  • Posts: 429
  • Canberra
    • View Profile
Re: Four stroke options
« Reply #30 on: December 28, 2015, 09:56:25 AM »
Funny how on one thread they're wingeing about franken bikes and on another where building them love it.

Difference is that the other FrankenBikes are historical aberrations, potentially using many major components from much later bikes.

So were there lots of Kawasaki and Suzuki 4 stroke motocross bikes racing back in the day?
Vinduro Penrite Team
1980 Yamaha IT125G, 1979 Yamaha IT175F, 1984 Yamaha IT200L, 1977 Yamaha IT250D and IT400D

Offline Hoony

  • Legend
  • *****
  • Posts: 4051
  • Melbourne, Vic.
    • View Profile
Re: Four stroke options
« Reply #31 on: December 28, 2015, 10:04:39 AM »
short answer - NO
Long time Honda Fan, but all bike nut in general, Big Bore 2 stroke fan.    http://www.youtube.com/watch?v=XJoKP6MawYI
1985 Honda CR500RF "Big Red"
1986 Honda CR250RG
2005 KTM 300EXC "The GruntMeister" ( I love that engine)

Offline skypig

  • A-Grade
  • ****
  • Posts: 473
    • View Profile
Re: Four stroke options
« Reply #32 on: December 28, 2015, 10:40:06 AM »
4 strokes back in the day.
Obviously there were some.
It was certainly possible, if you desired.
During the "Thumpernats" era, there were plenty of 4 stroke MX creations.

Offline Momus

  • A-Grade
  • ****
  • Posts: 448
    • View Profile
Re: Four stroke options
« Reply #33 on: December 28, 2015, 11:03:29 AM »
Hi fellow VMXers,

I think my next vmx bike will be a four stroke. I.ve had a few XTs back in the day but can't imagine an XT or TT for vmx, as much as I love to see Rob Smith on his thumper. Probably can't find or afford a CCM, so what do you think?
I will never be at the front, so being competitive is not an issue, but handling is important, decent suspension too.

Cheers

Ken

The VCM EVO class in Victoria was one this year by Chris Conboy on a sensibly modified XL250S. The bike was plenty fast, reliable and looked easy to ride compared to the various big block 4 strokes that run in the class.

Offline shelpi

  • Legend
  • *****
  • Posts: 2034
    • View Profile
Re: Four stroke options
« Reply #34 on: December 28, 2015, 12:18:36 PM »
Funny how on one thread they're wingeing about franken bikes and on another where building them love it.

Difference is that the other FrankenBikes are historical aberrations, potentially using many major components from much later bikes.

So were there lots of Kawasaki and Suzuki 4 stroke motocross bikes racing back in the day?
my tt/xt500 donk in a 81 RM full floater was inspired by a Dutch team, for the 4 stroke class in 82, built mine in 83

Offline Rossvickicampbell

  • Legend
  • *****
  • Posts: 3781
    • View Profile
Re: Four stroke options
« Reply #35 on: December 28, 2015, 01:57:26 PM »
thank you LWC82PE  ;D
1974 Yamaha YZ360B
1980 Honda CR250R - Moto X Fox Replica

Offline 80-85 husky

  • Legend
  • *****
  • Posts: 3420
    • View Profile
Re: Four stroke options
« Reply #36 on: December 28, 2015, 03:19:16 PM »
the 510 is an easy one, they are about and parts are available with a lot of carry over to the later water cooled bikes.. even easier is to slot a (pick fave jap500 etc) into a 83 husky frame. 13 inches of plusho travel and plenty of room for that boat anchor engine...

Offline LWC82PE

  • Superstar
  • ******
  • Posts: 5691
    • View Profile
    • PE motorcycles & SuzukiTS.com
« Last Edit: December 30, 2015, 10:13:59 PM by LWC82PE »
Wanted - 1978 TS185 frame
Orange Don Vesco/MS/Windsor tank
ADB Mags (vol 2 no.2) nov/dec 77& jan/feb 78 (vol2 no.3)

Offline crash n bern

  • Legend
  • *****
  • Posts: 775
    • View Profile
Re: Four stroke options
« Reply #38 on: January 11, 2016, 02:28:02 PM »
There's a can Am Sonic on Bikepoint. That will set you apart from the herd.



http://www.bikepoint.com.au/private/SSE-AD-3219076/1982-Bombardier-500-Sonic-(Can-Am)

Offline Rossvickicampbell

  • Legend
  • *****
  • Posts: 3781
    • View Profile
Re: Four stroke options
« Reply #39 on: January 11, 2016, 03:34:44 PM »
thanks LW - mind you 120 Euros is getting out there!
1974 Yamaha YZ360B
1980 Honda CR250R - Moto X Fox Replica

Offline Ted

  • Legend
  • *****
  • Posts: 2703
    • View Profile
Re: Four stroke options
« Reply #40 on: January 11, 2016, 08:19:35 PM »
Hi fellow VMXers,

I think my next vmx bike will be a four stroke. I.ve had a few XTs back in the day but can't imagine an XT or TT for vmx, as much as I love to see Rob Smith on his thumper. Probably can't find or afford a CCM, so what do you think?
I will never be at the front, so being competitive is not an issue, but handling is important, decent suspension too.

Cheers

Ken

The VCM EVO class in Victoria was one this year by Chris Conboy on a sensibly modified XL250S. The bike was plenty fast, reliable and looked easy to ride compared to the various big block 4 strokes that run in the class.

Does VCM run 2T mx bikes in Evo?
81 YZ 465 H    83 KX 500 A-1   77 RM 125 B   86 IT 200 S

Offline bigk

  • Legend
  • *****
  • Posts: 2545
  • Kangaroo Flat Victoria
    • View Profile
Re: Four stroke options
« Reply #41 on: January 12, 2016, 08:26:54 PM »
Yes Ted they do, EVO is for all, no differential between 2 of 4 stroke for the class.
K

Offline James Lee

  • A-Grade
  • ****
  • Posts: 495
    • View Profile
Re: Four stroke options
« Reply #42 on: April 29, 2016, 08:45:35 AM »
Im thinking of building a 4 stroke bike from stuff I have lying around here,an IT175 roller,just have to find a front wheel and an XT250 engine,not evo legal but Im sure it will be a fun bike.We mostly ride natural terrain on my mates property 2-3 times a week so no rules out there.
Anyone tried a 4T in an IT chassis?

Offline Nathan S

  • Superstar
  • ******
  • Posts: 7275
  • HEAVEN #818
    • View Profile
Re: Four stroke options
« Reply #43 on: April 29, 2016, 10:28:43 AM »
Fitting a taller 4T motor will be difficult in any IT175 frame, which all have the shock over the top of the motor.
Also, most models have the chain on the RHS, to add to the hassle.
The good thing about telling the truth is that you don't have to remember what you said.

Offline James Lee

  • A-Grade
  • ****
  • Posts: 495
    • View Profile
Re: Four stroke options
« Reply #44 on: April 29, 2016, 07:20:59 PM »
good point Nathan,drive is on the wrong side,shows how much Ive looked into it. :-[