500 2-stroke Re-born? - HCS Snowmobile Forums

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Old 06-29-2019, 09:53 AM   #1 (permalink)
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Default 500 2-stroke Re-born?

2020 Yamaha Announces Limited Edition YZ500
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Old 06-29-2019, 10:38 AM   #2 (permalink)
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There's quite a jump in horsepower between the old version and the new.

YZ490 = 54 hp
YZ500 = 74 hp
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Old 06-29-2019, 10:47 AM   #3 (permalink)
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Had a 1982 YZ 490 back in the day
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Old 06-29-2019, 11:15 AM   #4 (permalink)
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I moto raced yz 400 back around 79, that thing was a jet for a big bore. Those 2 stroke big bores bring back some fond memories.
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Old 06-29-2019, 11:28 AM   #5 (permalink)
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I have owned many of the 500 class MX and enduro bikes over the yrs(most while they were new and a long time ago now LOL)
but this is a great offering if it makes it to market I think, might spark some new interest back in more simple two stroke bikes!, that also made things easier for guys to work on at home with basic tools and skills!, and well lower price on rebuilds, pending what parts will now cost for this thing?



as only way to get one like his was thru the "SERVICE HONDA’S " in either a KX500AF
or a CR500AF build and they ran a little more than the MSRP sticker ($10,999)on this new Yamaha!
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Old 06-29-2019, 12:06 PM   #6 (permalink)
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Funny how back in the late 80's all the manufactures were starting to reduce the bore size on these open class bikes to make the power band more manageable. We actually went faster with less. I recall trying a husky 260 back in the day, friggin bike was a rocket and had long legs.....it'd make you forget about those 500's.
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Old 06-29-2019, 01:32 PM   #7 (permalink)
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I seem to remember lots of guys being faster on 250s than 500s because they couldn't control all the power
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Old 06-29-2019, 01:48 PM   #8 (permalink)
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Another fake news post on a 500 2 stroke. The specs on that bike are from the Stone Age.
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Old 06-29-2019, 02:32 PM   #9 (permalink)
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Yeah, I think itís fake too. There is no further 8nfo than that link, anywhere online. This seems fake too, especially 92 horsepower. When Kawasaki discont8nued the KX500 in 2004, it was making 72 horsepower. 92 is impossible, imo.

https://motocrossqc.com/2019/05/09/2.../#.XRetshrF2f0
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Old 06-29-2019, 04:07 PM   #10 (permalink)
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Quote:
Originally Posted by krom View Post
I seem to remember lots of guys being faster on 250s than 500s because they couldn't control all the power
It was that way when i raced, You could whip a 125 just as fast as the lap times on a similar brand 250. Running a 500 in a hare scrambles was pure torture imo, very few riders could match the lap times of a 250. I raced mostly 125's and beat the 250 class several times during my time. Except for real muddy events, even a 4 stroke was just as competitive as some of those 500's.
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