I have a chance to buy a 1998 YZ400...help me out

7 replies to this topic
  • hondacrf150f1

Posted July 01, 2008 - 05:30 PM


ok guys there is a local YZ400 i have a chance to buy. Give me some insight on the bike? Im the owner of a XR650R and CRF450R. So how will the YZ be for trails, and some dirt roads? Will the transmition be just like my CRF is, geared super low? The guy is asking $1200 which seams resonable. I was looking for a 2 stroke, but im not so sure. How will this stack up against a 250 2 stroke?

What do i need to look out for? any problems with these bikes? Its the first year bike yes? must have been some kinda quirks?

  • canute

Posted July 02, 2008 - 09:53 AM


I've had mine about a year now - This bike is a beast (i hadn't ridden for 25 years, man they came a long way)OK so its 10 years old heres the list ...
if it moves grease it, if it don't then paint it :thumbsup:...
water pump seals failed - its a 10 year old bike
fork seals weeped - its a 10 year old bike
sparky - save yourself the ticket
sprockets and chain (14/50) - its a 10 year old bike
engine ice - brilliant results
I use Amsoil - brilliant results
Large volume tank - this bike really only sips gas unless your pinning it
Power to spare in desert and dune (with paddle) - i power wheelie in fourth past 250f 's and 660 Raptor quads :p
Clean it - its a 10 year old bike
New plastic- its a 10 year old bike
Valves STILL in spec
Downside - Its a little heavy -

  • Family Man

Posted July 02, 2008 - 10:46 AM


You could pick up a 2002-2003 yz250 for that price, and you can rebuild the top ends for under 200 bucks and about 2 hours of your time. Four strokes cost about 1500 bucks to have the top ends rebuilt.

  • live4speed

Posted July 02, 2008 - 10:58 AM


the old 400's were fast bikes (faster than most 250 2T), the suspension will not be as up-to-date are your CRF, but it will definitly handle the trails...(offer him $1000)

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

Posted July 02, 2008 - 12:45 PM


It's a good trail bike and even a weekend racer. Not as new as your CRF but definitely in the same ballpark.

$1200 seems a bit high for a bike that old though. I'd offer the guy $800 and go as high as $1000. Your probably going to need a valve adjustment (or even some replaced). Might as well put in a new piston while your at it (cam chain too).

Water pump seals and fork seals will probably also need some attention if not now, soon.

  • hondacrf150f1

Posted July 02, 2008 - 03:28 PM


You could pick up a 2002-2003 yz250 for that price, and you can rebuild the top ends for under 200 bucks and about 2 hours of your time. Four strokes cost about 1500 bucks to have the top ends rebuilt.

2 strokes around me are super expensive!!! To find something for a grand i have to look at 80's or early 90's! anything 2000 and newer are atleast 1500 if not 2 grand +.

Ive rebiult 4 strokes before and it only cost me $250...you must be talking about valves in a cam to. In my expirience those last a lot longer than the piston and rings. NADA value on the bike is 1100-1500

  • lumpy790

Posted July 03, 2008 - 10:07 AM


As I recall there were a few changes from 98 to 99 and my 99 was stone reliable. See if you can find some old magazine tests for the 99 as they usually tell what was changed and why.

  • 1998YZ400F

Posted July 05, 2008 - 01:58 PM


we have both a 98 and three 99's at my house and the differences were extremely minor. like the hot start knob on 98's were black and red on 99's. the little dust caps on the rear hub are the same width unlike 98's which are different. the hub is different. little things like that.

Related Content


Snake pit oct 30th by The Anvil

Dirt Bike   Dirt Bike Regional Discussion   California
  • Hot  293 replies

Yamaha YZ450F 2017 by Chris.GVS

Yamaha YZ450F 2017
  • - - - - -
  • 0 reviews

Thinking about Yamaha 250... by Arctic Pride

Dirt Bike   Special Interest Forums   Pro Racing
  • Hot  491 replies

YZ450F 03 Sparks driving me crazy by SirAttard

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

yz250x vs 450 4t comparisons (preferably desert riding) needed by JakeNorthrupYZ450F

Dirt Bike   Make / Model Specific   Yamaha   Yamaha 2-Stroke
  • 9 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.