1990 YZ490 ??

bultokid
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bultokid
Edited Date/Time 3/11/2016 4:10pm
Can't seem to find much info/test on one. Any one had one or tried it out. Potential to get one and thought it'd make a good AHRMA Innovation class and practice/play bike to save the Montesa and YZ465 for race days.
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bigmaico
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bigmaico 1/24/2011 5:01am
1/24/2011 5:01am
Rhett,

I think that Matt Howell had or still has one.
bultokid
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bultokid 1/24/2011 6:35am
1/24/2011 6:35am
H, think Matt's is a '85-'86. IIRC they upgraded suspension in '88 ? As I don't have a modern bike anymore or ride much these days looking at getting something that is stone cold reliable and somewhat low maintenance to ride on practice days and Rio on a 500 is like butter !!!
bultokid
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bultokid 1/25/2011 8:16am
1/25/2011 8:16am
Larry, stopped 490 in 1990 then came out with the WR500 (still air cooled) in '91 or '92 ? Bradshaw was racing one in the 500 Nats.

The Shop

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vmx3
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vmx3 8/18/2014 12:19pm
8/18/2014 12:19pm Edited Date/Time 8/18/2014 12:21pm
I have a 1990 YZ490, I restored it from a $300 turd, now it's got a full Tom Morgan Racing motor among other things. '88 to 90 are identical except for 88 and 89 have different tank graphics and then 90 had the same graphics as 89 but had speed blocks on the seat cover.




Frog #1
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Frog #1 8/18/2014 4:35pm
8/18/2014 4:35pm
I have this low hour 1989 YZ490 for-sale! $1800

queen of spodes 8/18/2014 6:47pm
8/18/2014 6:47pm
Someone stuffed a WR500 engine in a YZ250 frame here in the ATL area a few years ago... wish I'd taken a pic or two.
BigAl
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BigAl 8/18/2014 8:11pm
8/18/2014 8:11pm
I guess they were the last air cooled mx'r

reggie426 8/19/2014 6:29am
8/19/2014 6:29am
Some of the Euro riders were using WR500's at the 92 MXdN, wanted one ever since
pete24
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pete24 8/19/2014 6:51am
8/19/2014 6:51am
that 90 for 1800 is a great deal!, i love 490s and yes they are dependable, dont bother trying to make them stop pinging, they will live forever rattling like a sun of a bitch, they are fairly slow, but thats good you dont need 50 hp with that chassis, in 88 they removed the Bass and put on cartrige forks that makes them a little better, i raced them from 84-88 then i got one for vintage in 2010 rode it for a while then cleaned it up and paaaaaked it



vmx3
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vmx3 8/19/2014 7:33am
8/19/2014 7:33am
reggie426 wrote:
Some of the Euro riders were using WR500's at the 92 MXdN, wanted one ever since
Bernd Eckenbach raced one for Germany there

vmx3
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vmx3 8/19/2014 7:35am
8/19/2014 7:35am
pete24 wrote:
that 90 for 1800 is a great deal!, i love 490s and yes they are dependable, dont bother trying to make them stop pinging, they will...
that 90 for 1800 is a great deal!, i love 490s and yes they are dependable, dont bother trying to make them stop pinging, they will live forever rattling like a sun of a bitch, they are fairly slow, but thats good you dont need 50 hp with that chassis, in 88 they removed the Bass and put on cartrige forks that makes them a little better, i raced them from 84-88 then i got one for vintage in 2010 rode it for a while then cleaned it up and paaaaaked it



That's a really nice '87
It's not too hard to stop them pinging, a good pipe and race gas stops it you can also get the squish band on the head modded but I've found with all mine that just a pipe and good gas works fine.
Uncle Tony
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Uncle Tony 8/19/2014 8:50am
8/19/2014 8:50am
I ride a 1988 and love it, they don't like tracks with tight turns and lots of jumps but they are fun on more natural style tracks, I cut the vibration down on my 490 to cr500 levels and I raised the compression and still got rid of the pinging with some minor jetting and race fuel, I did have some tranny problems but Pete24 helped sort those out, I think it's a good bike that good a bad rap, Jeff Stanton rode an 88 pretty good, and Kurt lungquist raced the 89 world championship on one, if you go on YouTube to the 1989 motocross des nations there is some good footage of Kurt on the 490
vmx3
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vmx3 8/19/2014 9:05am
8/19/2014 9:05am
Uncle Tony wrote:
I ride a 1988 and love it, they don't like tracks with tight turns and lots of jumps but they are fun on more natural style...
I ride a 1988 and love it, they don't like tracks with tight turns and lots of jumps but they are fun on more natural style tracks, I cut the vibration down on my 490 to cr500 levels and I raised the compression and still got rid of the pinging with some minor jetting and race fuel, I did have some tranny problems but Pete24 helped sort those out, I think it's a good bike that good a bad rap, Jeff Stanton rode an 88 pretty good, and Kurt lungquist raced the 89 world championship on one, if you go on YouTube to the 1989 motocross des nations there is some good footage of Kurt on the 490
I agree, the YZ490 is a way better bike than people give it credit for, it may of had a few minor problems out of the box but what bike doesn't. The guys you mention rode them great, Lungqvist actually rode one a couple of times in '87 so well that he ended up on the YZM to replace the hurt Vimond also let's not forget Glover's performances on them against the mighty RC Honda's and his performance at Hollister on one in 88





pete24
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pete24 8/19/2014 9:13am
8/19/2014 9:13am
i was at binghamton in 91 or 92 when bradshaw one a moto on a wr thing sounded like it wasnt going to make it the whole moto but it did

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vmx3
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vmx3 8/19/2014 11:46am
8/19/2014 11:46am Edited Date/Time 8/19/2014 11:49am
Bradshaw showed a lot of people what time it was on that thing.


eurofighter69 8/19/2014 12:03pm
8/19/2014 12:03pm
I remember very well the sound of the factory one of Leif Persson in the woods of Namur.Awesome.Smile
Uncle Tony
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Uncle Tony 8/20/2014 2:10pm
8/20/2014 2:10pm
This is a picture of my 1988 YZ, I had a rear disc brake on this 490.



This is a photo of me racing my 490 this year.



The Sneak
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The Sneak 8/21/2014 6:51am
8/21/2014 6:51am Edited Date/Time 8/21/2014 6:52am
You know you can make a YZ490/WR500 *very* fast...



Still a lousy delivery for MX though
vmx3
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vmx3 8/21/2014 7:21am
8/21/2014 7:21am
Uncle Tony wrote:
This is a picture of my 1988 YZ, I had a rear disc brake on this 490. [img]https://p.vitalmx.com/photos/forums/2014/08/20/62989/s1200_2014_08_20_16.56.50.jpg[/img] This is a photo of me racing my...
This is a picture of my 1988 YZ, I had a rear disc brake on this 490.



This is a photo of me racing my 490 this year.



I love the rear disc. Did that come off an '88 125? i dig the Yoko gear too
vmx3
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vmx3 8/21/2014 7:25am
8/21/2014 7:25am
This is on my '83 last year in a Midwest VMX Race



This one is from Farleigh Castle last year on my '90



1
Uncle Tony
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Uncle Tony 8/21/2014 9:08am
8/21/2014 9:08am
vmx3 wrote:
This is on my '83 last year in a Midwest VMX Race [img]https://p.vitalmx.com/photos/forums/2014/08/21/63053/s1200_1983_YAMAHA_YZ490K_JOLIET_MX_WILMINGTON_IL._AUG._13_23.jpg[/img] This one is from Farleigh Castle last year on my '90 [img]https://p.vitalmx.com/photos/forums/2014/08/21/63054/s1200_1990_YAMAHA_YZ490A_VETS_MXdN_FARLEIGH_CASTLE_15TH_SEP._13_17.jpg[/img]
This is on my '83 last year in a Midwest VMX Race



This one is from Farleigh Castle last year on my '90



Yes vmx3 the disk came off a yz125, dgy made the bike in 1988, Eric gorr did the motor, it was a nice bike, I got the yoko gear from an importer in England named ci sport, or comerfords international, my current bike bike doesn't have a disk in the rear, I raced it in the nesc spring series finishing 4th overall in the 55 plus class, in the old geezers class it doesn't matter what you ride, you're part of international air hammer right?
vmx3
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vmx3 8/21/2014 10:04am
8/21/2014 10:04am
vmx3 wrote:
This is on my '83 last year in a Midwest VMX Race [img]https://p.vitalmx.com/photos/forums/2014/08/21/63053/s1200_1983_YAMAHA_YZ490K_JOLIET_MX_WILMINGTON_IL._AUG._13_23.jpg[/img] This one is from Farleigh Castle last year on my '90 [img]https://p.vitalmx.com/photos/forums/2014/08/21/63054/s1200_1990_YAMAHA_YZ490A_VETS_MXdN_FARLEIGH_CASTLE_15TH_SEP._13_17.jpg[/img]
This is on my '83 last year in a Midwest VMX Race



This one is from Farleigh Castle last year on my '90



Uncle Tony wrote:
Yes vmx3 the disk came off a yz125, dgy made the bike in 1988, Eric gorr did the motor, it was a nice bike, I got...
Yes vmx3 the disk came off a yz125, dgy made the bike in 1988, Eric gorr did the motor, it was a nice bike, I got the yoko gear from an importer in England named ci sport, or comerfords international, my current bike bike doesn't have a disk in the rear, I raced it in the nesc spring series finishing 4th overall in the 55 plus class, in the old geezers class it doesn't matter what you ride, you're part of international air hammer right?
Yes, I am part of Team International air Hammer, we dig 490's and try to keep them out there.
Uncle Tony
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Uncle Tony 8/21/2014 10:13am
8/21/2014 10:13am
That's pretty cool! I watched all your videos on YouTube from the vet des nations, Johnny quid? One of my favorite movies from guy Ritchie, rocknrolla uncle Archie was my guy!!!
vmx3
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vmx3 8/21/2014 12:40pm
8/21/2014 12:40pm
Uncle Tony wrote:
That's pretty cool! I watched all your videos on YouTube from the vet des nations, Johnny quid? One of my favorite movies from guy Ritchie, rocknrolla...
That's pretty cool! I watched all your videos on YouTube from the vet des nations, Johnny quid? One of my favorite movies from guy Ritchie, rocknrolla uncle Archie was my guy!!!
Thanks, yeah I'm still trying to perfect the Archie slap Smile
245
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245 8/22/2014 1:41am
8/22/2014 1:41am Edited Date/Time 8/22/2014 1:51am
vmx3 wrote:
This is on my '83 last year in a Midwest VMX Race [img]https://p.vitalmx.com/photos/forums/2014/08/21/63053/s1200_1983_YAMAHA_YZ490K_JOLIET_MX_WILMINGTON_IL._AUG._13_23.jpg[/img] This one is from Farleigh Castle last year on my '90 [img]https://p.vitalmx.com/photos/forums/2014/08/21/63054/s1200_1990_YAMAHA_YZ490A_VETS_MXdN_FARLEIGH_CASTLE_15TH_SEP._13_17.jpg[/img]
This is on my '83 last year in a Midwest VMX Race



This one is from Farleigh Castle last year on my '90



Nice jump there Rory!

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