Unseen Factory Parts,

-MAVERICK-
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-MAVERICK- 8/28/2018 2:40pm
8/28/2018 2:40pm
decano51 wrote:
Not many sponsors for the factory teams back then
Yet the sport was at its peak.
9
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-MAVERICK-
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-MAVERICK- 8/28/2018 2:44pm
8/28/2018 2:44pm
Donnie Hansen's 1982 Honda RC 250.











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-MAVERICK-
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-MAVERICK- 8/28/2018 2:49pm
8/28/2018 2:49pm
Johnny O'Mara's 1982 Factory CR 125













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mattyhamz2 8/28/2018 2:49pm
8/28/2018 2:49pm
-MAVERICK- wrote:
Donnie Hansen's 1982 Honda RC 250. [img]https://p.vitalmx.com/photos/forums/2018/08/28/283691/s1200_1982_Donnie_Hansen_Honda_RC_250_1.jpg[/img] [img]https://p.vitalmx.com/photos/forums/2018/08/28/283687/s1200_1982_Donnie_Hansen_Honda_RC_250_2.jpg[/img] [img]https://p.vitalmx.com/photos/forums/2018/08/28/283689/s1200_1982_Donnie_Hansen_Honda_RC_250_3.jpg[/img] [img]https://p.vitalmx.com/photos/forums/2018/08/28/283690/s1200_1982_Donnie_Hansen_Honda_RC_250_4.jpg[/img] [img]https://p.vitalmx.com/photos/forums/2018/08/28/283688/s1200_1982_Donnie_Hansen_Honda_RC_250_5.jpg[/img] [img]https://p.vitalmx.com/photos/forums/2018/08/28/283692/s1200_1982_Donnie_Hansen_Honda_RC_250_6.jpg[/img] [img]https://p.vitalmx.com/photos/forums/2018/08/28/283698/s1200_1982_Donnie_Hansen_Honda_RC_250_7.jpg[/img] [img]https://p.vitalmx.com/photos/forums/2018/08/28/283693/s1200_1982_Donnie_Hansen_Honda_RC_250_8.jpg[/img] [img]https://p.vitalmx.com/photos/forums/2018/08/28/283695/s1200_1982_Donnie_Hansen_Honda_RC_250_9.jpg[/img] [img]https://p.vitalmx.com/photos/forums/2018/08/28/283696/s1200_1982_Donnie_Hansen_Honda_RC_250_10.jpg[/img] [img]https://p.vitalmx.com/photos/forums/2018/08/28/283697/s1200_1982_Donnie_Hansen_Honda_RC_250_11.jpg[/img]
Donnie Hansen's 1982 Honda RC 250.











That damn fork sticker is bugging me!
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dean122
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dean122 8/28/2018 2:56pm
8/28/2018 2:56pm
decano51 wrote:
Not many sponsors for the factory teams back then
-MAVERICK- wrote:
Yet the sport was at its peak.
Economy was booming during this time. You couldn't keep bikes on the showroom floor with the 4-stroke revolution.

Mazda dropped Yamaha a couple years earlier for 5/6 years without any outside sponsorship until San Manuel jumped in. That's when the economy took a dump and all the Factory teams were looking for money.
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decano51
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decano51 8/28/2018 3:04pm
8/28/2018 3:04pm
travis prestons cr125, one of the 1st bikes to have the ti nitrate coatings on the rear shock

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decano51
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decano51 8/28/2018 3:07pm
8/28/2018 3:07pm
Brandon Jessman's RM125 in 2003. Other then JS7 fcotry KX... You would have to guess with decoster at Suzuki, they would have had some serious R&D behind the casings of them motors





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-MAVERICK-
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-MAVERICK- 8/28/2018 3:23pm
8/28/2018 3:23pm
Fred Bolley's 1996 Kawasaki SR 250








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decano51
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decano51 8/28/2018 3:35pm
8/28/2018 3:35pm
KX125sr




9
decano51
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decano51 8/28/2018 3:46pm
8/28/2018 3:46pm
Richard Tease II wrote:
[url=https://www.vitalmx.com/videos/features/Factory-Connection-Racings-Fuel-Injected-CRF150R,13396/GuyB,64]https://www.vitalmx.com/videos/features/Factory-Connection-Racings-Fuel-Injected-CRF150R,13396/GuyB,64[/url]
https://www.vitalmx.com/videos/features/Factory-Connection-Racings-Fuel-Injected-CRF150R,13396/GuyB,64
Didn't know about that one!!! that's a absolute machine of a supermini!
1
Richard Tease II 8/28/2018 3:48pm
8/28/2018 3:48pm
Richard Tease II wrote:
[url=https://www.vitalmx.com/videos/features/Factory-Connection-Racings-Fuel-Injected-CRF150R,13396/GuyB,64]https://www.vitalmx.com/videos/features/Factory-Connection-Racings-Fuel-Injected-CRF150R,13396/GuyB,64[/url]
https://www.vitalmx.com/videos/features/Factory-Connection-Racings-Fuel-Injected-CRF150R,13396/GuyB,64
decano51 wrote:
Didn't know about that one!!! that's a absolute machine of a supermini!
Probably the only true works bike racing in moto in the USA.
3
nine1seven
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nine1seven 8/28/2018 5:42pm
8/28/2018 5:42pm
casper wrote:
What's special about the clutch pack? Also does anyone know if bikes are not allowed to run aftermarket radiators? It seems like all the factory bikes...
What's special about the clutch pack?

Also does anyone know if bikes are not allowed to run aftermarket radiators? It seems like all the factory bikes still use the stock stamped aluminum radiators.
decano51 wrote:
Metty's YZ125, was the last 125 to race prior to AMA kicking up a stink. He pretty much had shaved casings, Hinson Clutch pack decked out...
Metty's YZ125, was the last 125 to race prior to AMA kicking up a stink.
He pretty much had shaved casings, Hinson Clutch pack decked out with Titanium and Coatings on everything that moved to reduce the friction.

Hey that's my YZ! I did a rebuild on that bike awhile back. It was cool going through that bike and seeing some of the trick bits. That pic I took wasn't to show the clutch pack as much as the Ti that was throughout the engine. Anyone can buy Ti kits to save weight, but going inside the engine isn't done much by anyone other than factory guys. The Ti on this Metcalfe YZ125 was all YMC Japan. A lot of the plastic was held on with aluminum fasteners. They didn't run Ti Linkage bolts for reliability but most everything else was. I actually got some insights in talking to Metty's Mechanic from back then, Jared Coles. The way they prepare factory bikes is cool. Rebuilding the wheels, all the bearings were open (rubber seals removed), outer plastic dust seals snapped off the wheel spacers all to reduce drag. The Triple clamps had a thicker stem, smaller bearings and thicker races. I'm sure that was to fine tune rigidity. I sent the headset to Pivot Works, but they were unable to match it. Luckily it was all in good enough shape to reuse. The radiators are stockers that had been braced and welded for strength. ICW (www.icwradiators.com) does similar work. The frame had tabs welded in for skid plate and a vortex ignition was relocated between the radiators.



Here's a link to the thread I posted pics to:

https://www.vitalmx.com/forums/Old-School-Moto,22/The-Last-Factory-YZ12…

MXA posted the test of the bike from 2005 here:

https://motocrossactionmag.com/two-stroke-tuesday-we-ride-the-last-fact…

https://www.vitalmx.com/forums/Old-School-Moto,22/The-Last-Factory-YZ12…
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BR8ES
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BR8ES 8/28/2018 6:00pm
8/28/2018 6:00pm
newmann wrote:
1985. And this was just on the outside! [img]https://p.vitalmx.com/photos/forums/2018/08/27/283434/s1200_1985_RC250_1_750.jpg[/img] [img]https://p.vitalmx.com/photos/forums/2018/08/27/283433/s1200_1985_RC250_2_750.jpg[/img] [img]https://p.vitalmx.com/photos/forums/2018/08/27/283435/s1200_1985_RC250_3_750.jpg[/img] [img]https://p.vitalmx.com/photos/forums/2018/08/27/283438/s1200_1985_RC250_4_750.jpg[/img] [img]https://p.vitalmx.com/photos/forums/2018/08/27/283440/s1200_1985_RC250_5_750.jpg[/img] [img]https://p.vitalmx.com/photos/forums/2018/08/27/283441/s1200_1985_RC250_6_750.jpg[/img] [img]https://p.vitalmx.com/photos/forums/2018/08/27/283436/s1200_1985_RC250_7_500.jpg[/img] [img]https://p.vitalmx.com/photos/forums/2018/08/27/283437/s1200_1985_RC250_8_500.jpg[/img] [img]https://p.vitalmx.com/photos/forums/2018/08/27/283439/s1200_1985_RC250_9_750.jpg[/img] [img]https://p.vitalmx.com/photos/forums/2018/08/27/283442/s1200_1985_RC250_10_750.jpg[/img] [img]https://p.vitalmx.com/photos/forums/2018/08/27/283446/s1200_1985_RC250_11_750.jpg[/img] [img]https://p.vitalmx.com/photos/forums/2018/08/27/283448/s1200_1985_RC250_12_750.jpg[/img] [img]https://p.vitalmx.com/photos/forums/2018/08/27/283445/s1200_1985_RC250_13_750.jpg[/img] [img]https://p.vitalmx.com/photos/forums/2018/08/27/283443/s1200_1985_RC250_14_750.jpg[/img] [img]https://p.vitalmx.com/photos/forums/2018/08/27/283449/s1200_1985_RC250_15_750.jpg[/img]
1985. And this was just on the outside!
















Honda hater back in those days, but always realised how awesome they were. One of my favourite all time bikes.
1
decano51
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decano51 8/28/2018 6:26pm
8/28/2018 6:26pm
casper wrote:
What's special about the clutch pack? Also does anyone know if bikes are not allowed to run aftermarket radiators? It seems like all the factory bikes...
What's special about the clutch pack?

Also does anyone know if bikes are not allowed to run aftermarket radiators? It seems like all the factory bikes still use the stock stamped aluminum radiators.
decano51 wrote:
Metty's YZ125, was the last 125 to race prior to AMA kicking up a stink. He pretty much had shaved casings, Hinson Clutch pack decked out...
Metty's YZ125, was the last 125 to race prior to AMA kicking up a stink.
He pretty much had shaved casings, Hinson Clutch pack decked out with Titanium and Coatings on everything that moved to reduce the friction.

nine1seven wrote:
Hey that's my YZ! I did a rebuild on that bike awhile back. It was cool going through that bike and seeing some of the trick...
Hey that's my YZ! I did a rebuild on that bike awhile back. It was cool going through that bike and seeing some of the trick bits. That pic I took wasn't to show the clutch pack as much as the Ti that was throughout the engine. Anyone can buy Ti kits to save weight, but going inside the engine isn't done much by anyone other than factory guys. The Ti on this Metcalfe YZ125 was all YMC Japan. A lot of the plastic was held on with aluminum fasteners. They didn't run Ti Linkage bolts for reliability but most everything else was. I actually got some insights in talking to Metty's Mechanic from back then, Jared Coles. The way they prepare factory bikes is cool. Rebuilding the wheels, all the bearings were open (rubber seals removed), outer plastic dust seals snapped off the wheel spacers all to reduce drag. The Triple clamps had a thicker stem, smaller bearings and thicker races. I'm sure that was to fine tune rigidity. I sent the headset to Pivot Works, but they were unable to match it. Luckily it was all in good enough shape to reuse. The radiators are stockers that had been braced and welded for strength. ICW (www.icwradiators.com) does similar work. The frame had tabs welded in for skid plate and a vortex ignition was relocated between the radiators.



Here's a link to the thread I posted pics to:

https://www.vitalmx.com/forums/Old-School-Moto,22/The-Last-Factory-YZ12…

MXA posted the test of the bike from 2005 here:

https://motocrossactionmag.com/two-stroke-tuesday-we-ride-the-last-fact…

https://www.vitalmx.com/forums/Old-School-Moto,22/The-Last-Factory-YZ12…
Man that's sick!!!! Good piece of history there mate!
Now the public have more access to technology and in sites to what factory parts are made etc..
Id love to get my hands on an early 2000' 2 stroke to see how factory i could get it, If not.. better then a factory bike with all the technology we have these days.


#434
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#434 8/28/2018 11:54pm
8/28/2018 11:54pm
-MAVERICK- wrote:
Fred Bolley's 1996 Kawasaki SR 250 [img]https://p.vitalmx.com/photos/forums/2018/08/28/283720/s1200_Fred_Bolley_1996_Kawasaki_SR_250_1.jpg[/img] [img]https://p.vitalmx.com/photos/forums/2018/08/28/283721/s1200_Fred_Bolley_1996_Kawasaki_SR_250_10.jpg[/img] [img]https://p.vitalmx.com/photos/forums/2018/08/28/283722/s1200_Fred_Bolley_1996_Kawasaki_SR_250_2.jpg[/img] [img]https://p.vitalmx.com/photos/forums/2018/08/28/283723/s1200_Fred_Bolley_1996_Kawasaki_SR_250_3.jpg[/img] [img]https://p.vitalmx.com/photos/forums/2018/08/28/283724/s1200_Fred_Bolley_1996_Kawasaki_SR_250_4.jpg[/img] [img]https://p.vitalmx.com/photos/forums/2018/08/28/283725/s1200_Fred_Bolley_1996_Kawasaki_SR_250_7.jpg[/img] [img]https://p.vitalmx.com/photos/forums/2018/08/28/283727/s1200_Fred_Bolley_1996_Kawasaki_SR_250_11.jpg[/img] [img]https://p.vitalmx.com/photos/forums/2018/08/28/283726/s1200_Fred_Bolley_1996_Kawasaki_SR_250_12.jpg[/img]
Fred Bolley's 1996 Kawasaki SR 250








Jan de Groot built some amazing bikes! He wasn't afraid to try something new. RIP

Seems he wasn't happy with how the rear suspension of modern bikes work.

8
scott_nz 8/29/2018 12:26am
8/29/2018 12:26am
#434 wrote:
Jan de Groot built some amazing bikes! He wasn't afraid to try something new. RIP Seems he wasn't happy with how the rear suspension of modern...
Jan de Groot built some amazing bikes! He wasn't afraid to try something new. RIP

Seems he wasn't happy with how the rear suspension of modern bikes work.

agreed, he had some awesome bikes over the years,
1

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.kyle
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.kyle 8/29/2018 2:32am
8/29/2018 2:32am
I was going to post that 2004 Jan de Groot Kawasaki. I still can't work out how it works. Such a shame he passed away.
There were claims a few years back that the under frame shock was going in to production.
PRM31
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PRM31 8/29/2018 4:39am
8/29/2018 4:39am
newmann wrote:
1985. And this was just on the outside! [img]https://p.vitalmx.com/photos/forums/2018/08/27/283434/s1200_1985_RC250_1_750.jpg[/img] [img]https://p.vitalmx.com/photos/forums/2018/08/27/283433/s1200_1985_RC250_2_750.jpg[/img] [img]https://p.vitalmx.com/photos/forums/2018/08/27/283435/s1200_1985_RC250_3_750.jpg[/img] [img]https://p.vitalmx.com/photos/forums/2018/08/27/283438/s1200_1985_RC250_4_750.jpg[/img] [img]https://p.vitalmx.com/photos/forums/2018/08/27/283440/s1200_1985_RC250_5_750.jpg[/img] [img]https://p.vitalmx.com/photos/forums/2018/08/27/283441/s1200_1985_RC250_6_750.jpg[/img] [img]https://p.vitalmx.com/photos/forums/2018/08/27/283436/s1200_1985_RC250_7_500.jpg[/img] [img]https://p.vitalmx.com/photos/forums/2018/08/27/283437/s1200_1985_RC250_8_500.jpg[/img] [img]https://p.vitalmx.com/photos/forums/2018/08/27/283439/s1200_1985_RC250_9_750.jpg[/img] [img]https://p.vitalmx.com/photos/forums/2018/08/27/283442/s1200_1985_RC250_10_750.jpg[/img] [img]https://p.vitalmx.com/photos/forums/2018/08/27/283446/s1200_1985_RC250_11_750.jpg[/img] [img]https://p.vitalmx.com/photos/forums/2018/08/27/283448/s1200_1985_RC250_12_750.jpg[/img] [img]https://p.vitalmx.com/photos/forums/2018/08/27/283445/s1200_1985_RC250_13_750.jpg[/img] [img]https://p.vitalmx.com/photos/forums/2018/08/27/283443/s1200_1985_RC250_14_750.jpg[/img] [img]https://p.vitalmx.com/photos/forums/2018/08/27/283449/s1200_1985_RC250_15_750.jpg[/img]
1985. And this was just on the outside!
















BR8ES wrote:
Honda hater back in those days, but always realised how awesome they were. One of my favourite all time bikes.
If I could ride one bike from history, that'd likely be it!

What does an early 80's Honda factory bike weigh?
Robgvx
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Robgvx 8/29/2018 5:32am
8/29/2018 5:32am
Some RC500 parts:





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newmann
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newmann 8/29/2018 5:56am
8/29/2018 5:56am
1978 RC500, the drum brake days.

Magnesium hubs and backing plates, steel spoke retainer on front hub, titanium brake shoe pivots and cams, machined liners in hubs, aluminum wheel spacers, quick release brake actuating rod, billet titanium chain adjusters...













decano51
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decano51 8/29/2018 3:03pm
8/29/2018 3:03pm
Does any one have photos of Chad Reeds KX he was racing in the GP's late 90's?
Rumour had it that was one of the most expensive 2 strokes at that time and filled with one off custom parts. Would love to see what goodies they had made for that bike.
Joko
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Joko 8/29/2018 3:13pm
8/29/2018 3:13pm
newmann wrote:
1978 RC500, the drum brake days. Magnesium hubs and backing plates, steel spoke retainer on front hub, titanium brake shoe pivots and cams, machined liners in...
1978 RC500, the drum brake days.

Magnesium hubs and backing plates, steel spoke retainer on front hub, titanium brake shoe pivots and cams, machined liners in hubs, aluminum wheel spacers, quick release brake actuating rod, billet titanium chain adjusters...













Did you view the crank and gearbox internals of that RC?
-MAVERICK-
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-MAVERICK- 8/29/2018 4:44pm
8/29/2018 4:44pm
decano51 wrote:
Does any one have photos of Chad Reeds KX he was racing in the GP's late 90's? Rumour had it that was one of the most...
Does any one have photos of Chad Reeds KX he was racing in the GP's late 90's?
Rumour had it that was one of the most expensive 2 strokes at that time and filled with one off custom parts. Would love to see what goodies they had made for that bike.
I don't have any pics of him in the late 90's but here's his 2001 bike.

Chad Reed's 2001 Kawasaki SR 250













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decano51
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decano51 8/29/2018 4:50pm
8/29/2018 4:50pm
decano51 wrote:
Does any one have photos of Chad Reeds KX he was racing in the GP's late 90's? Rumour had it that was one of the most...
Does any one have photos of Chad Reeds KX he was racing in the GP's late 90's?
Rumour had it that was one of the most expensive 2 strokes at that time and filled with one off custom parts. Would love to see what goodies they had made for that bike.
-MAVERICK- wrote:
I don't have any pics of him in the late 90's but here's his 2001 bike. Chad Reed's 2001 Kawasaki SR 250 [img]https://p.vitalmx.com/photos/forums/2018/08/29/284004/s1200_Chad_Reed_2001_Kawasaki_SR_250_1.jpg[/img] [img]https://p.vitalmx.com/photos/forums/2018/08/29/284011/s1200_Chad_Reed_2001_Kawasaki_SR_250_8.jpg[/img] [img]https://p.vitalmx.com/photos/forums/2018/08/29/284006/s1200_Chad_Reed_2001_Kawasaki_SR_250_2.jpg[/img] [img]https://p.vitalmx.com/photos/forums/2018/08/29/284007/s1200_Chad_Reed_2001_Kawasaki_SR_250_3.jpg[/img]...
I don't have any pics of him in the late 90's but here's his 2001 bike.

Chad Reed's 2001 Kawasaki SR 250













That's the one! my bad.

Wonder where this bike ended up
-MAVERICK-
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-MAVERICK- 8/29/2018 5:06pm
8/29/2018 5:06pm
decano51 wrote:
That's the one! my bad.

Wonder where this bike ended up
I think some collector in Europe (Belgium? or Netherlands?) got his hands on it if I'm not mistaking.

Someone on here might know for sure.
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Kelz87 8/29/2018 7:12pm
8/29/2018 7:12pm
mx_563 wrote:
Reminds me of the Answer Roost Boost, and I'm dating myself by knowing what one is. LOL
Man..I haven’t thought about that in forever. My dad had one on his RM125 when I was a kid and I never knew what it was for. I thought it looked cool tho Laughing Hell, I still don’t know what it did or what it was for

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jason486 8/29/2018 8:15pm
8/29/2018 8:15pm



mx_563
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mx_563 8/29/2018 8:19pm
8/29/2018 8:19pm
mx_563 wrote:
Reminds me of the Answer Roost Boost, and I'm dating myself by knowing what one is. LOL
Kelz87 wrote:
Man..I haven’t thought about that in forever. My dad had one on his RM125 when I was a kid and I never knew what it was...
Man..I haven’t thought about that in forever. My dad had one on his RM125 when I was a kid and I never knew what it was for. I thought it looked cool tho Laughing Hell, I still don’t know what it did or what it was for

That right there is the newer model. The original ones were round. I think it was essentially a spark amplifier. Idea being that a stronger spark produced a more thorough burn and hence more power. Just imagine a roost boost coupled with a Splitfire plug....oh momma!!!!! Grinning
6

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