Will there be a 450F for sure?

12 replies to this topic
  • motoxpress

Posted May 01, 2002 - 01:27 PM


Has anyone seen real pictures or gotten solid info about the specs?

George Loch

  • intothumpin

Posted May 02, 2002 - 05:20 AM


Yes there is a 450 coming and it's roomered that Dr. D rode a 450 at the Glen Helen 4 stroke nat's that was disguised in 426 plastic. A buddy of mine from a popular dirt bike mag says they have pics of the 450 in 426 plastics. Specs are not detailed but the motor is wet sump, frame mods simular to the 02 yz250/125's and the WR gets e-start. Just a thought, if the wr motor gets e-start stock, then the YZ motor will be able to accept the e-start mod as well! It's not the radically new aluminum framed monster that everyone was antispated. But it should be fun.

  • Ga426owner

Posted May 02, 2002 - 07:00 AM


But is the motor the same as the 02? Or is it a completely new design?

  • Roostie_1

Posted May 02, 2002 - 09:39 PM


What really concerns me is if the bike is going to lose some weight. I have an 01 and I'm not trading it in unless it loses some weight. Actually I hope it doesn't lose any weight, cause then I'll add a 250f to the family and buy a new bike each year (alternatlely). :)


Posted May 02, 2002 - 09:45 PM


buy a new bike each year must be nice, can I get your job please?? LOL :)

  • Cobra314

Posted May 02, 2002 - 12:05 PM


This is all I've seen so far. http://www.motorcycl...=145659&navID=4 I talked to the owner of one of our local Yami dealerships about it the other day. He said that he would be getting the info from them in June.

Visit the ThumperTalk Store for the lowest prices on motorcycle / ATV parts and accessories - Guaranteed
  • SUnruh

Posted May 02, 2002 - 12:40 PM


Originally posted by Ga426owner:
But is the motor the same as the 02? Or is it a completely new design?

unless the guys in japan have been hitting the crack pipe often, it will be a different motor for sure. why you ask? because just look at the 2 kits that add electric start to the current motor and tell me that's not insane!
nope, not gonna be like the '02 motor at all.
at least the bottom end won't be.

if ya want a REAL hint at what the motor is gonna look like, look at the NEW motor on the R1 street bike. :)

  • intothumpin

Posted May 03, 2002 - 05:39 AM


I was told that the motor from a distance looks the same, but under closer inspection you can see that the clutch cover is positioned higher in the the cases (to accomidate the E-start) the head & cylinder look sleeker. other than that it's hard to notice many changes to the motor but I am sure there are many. The swing arm also looks to be slightly different than that of the 02. I was also told that Yamaha went to great measures to cut the weight without sacraficing reliablity

  • John_Lorenz

Posted May 03, 2002 - 05:54 AM


I just heard that Yamaha is scraping the 4 stroke altogether, They are opting for soe kinda new technology called Hoverthumper

its supposed to be air powered like a hovercraft

no need for suspension or wheels.

Its rumered to weight in about 1 ton :)

I love rumors and what you can do with them.

Oh ya Clinton is ther spokes rep for the new Hoverthumper Race Team.

The matto of the team is:
I did not have relations with that KTM :D

  • endo

Posted May 03, 2002 - 04:30 PM


I heard the 03 would be a fuel cell powered electric bike weighing 195 pounds and puting out a linear peak of 40 ft lb of torqe.

  • rmarion

Posted May 03, 2002 - 04:41 PM


I heard there takin the Cannodale, slipping on Blue Yamaha Plastics and calling it the
BIKE OF THE CENTURY, opps my bad Yamaha already had that Crown 3 years ago.

  • wylie1

Posted May 03, 2002 - 06:00 PM


If Clinton is their spokesperson they will have to change the name to HummerThumper. :)

[ May 03, 2002: Message edited by: wylie1 ]

  • 520Rider86

Posted May 05, 2002 - 04:28 PM


Haha, ya HummerThumper would be its name for sure.

Related Content


Yamaha YZ450F 2017 by Chris.GVS

Yamaha YZ450F 2017
  • * * * * *
  • 1 review
  • Last review by Tommyk_55
  • On January 15, 2017

2016 YZ450 by CaptainKnobby

Dirt Bike   Dirt Bike Technical Forums   Suspension
  • Hot  59 replies

Is it worth it? (Cam and High compression piston) by macgi77

Dirt Bike   Make / Model Specific   Honda   CRF 150/230 F/L
  • Hot  36 replies


Dirt Bike   Make / Model Specific   Yamaha   YZ 400/426/450
  • Hot  30 replies

Snake pit oct 30th by The Anvil

Dirt Bike   Dirt Bike Regional Discussion   California
  • Hot  293 replies

Join Our Community!

Even if you don't want to post, registered members get access to tools that make finding & following the good stuff easier.

If you enjoyed reading about "" here in the ThumperTalk archive, you'll LOVE our community. Come join ThumperTalk today!

The views and opinions expressed on this page are strictly those of the author, and have not been reviewed or approved by ThumperTalk.