i need help


5 replies to this topic
  • corywr400f

Posted July 15, 2008 - 04:30 PM

#1

i have a 1998 wr400f and i am looking for a way to get better bottom end out of my bike if anybody knows i would like the help thanks

  • WR450FGreg

Posted July 17, 2008 - 02:11 PM

#2

Cory,

I have seen bolt-on flywheel weights advertised for four-stroke bikes that apparently boost bottom end power (probably at the expense of top end).
Not sure how well they work (maybe brilliantly, I don't know).
They look very easy to fit.

Worth considering.

Greg

  • lilyamaharacer9

Posted July 17, 2008 - 02:15 PM

#3

Cory,

I have seen bolt-on flywheel weights advertised for four-stroke bikes that apparently boost bottom end power (probably at the expense of top end).
Not sure how well they work (maybe brilliantly, I don't know).
They look very easy to fit.

Worth considering.

Greg


a flywheel weight will only make the bike take longer to rev up and hit smoother than without it not add bottem end.

For bottom end get a pipe, but your best bet would be porting

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  • Bladerunner426

Posted July 17, 2008 - 02:32 PM

#4

Have you done any thing to the bike yet, Exhaust, jetting, Gearing, Air box mods? If the bike is all stock then there is a bunch of stuff you can do to help the bottom end.

  • Birdy426

Posted July 17, 2008 - 09:46 PM

#5

Try running WR timing...or a high compression piston...or a big bore kit...

  • WR450FGreg

Posted July 17, 2008 - 09:57 PM

#6

.

a flywheel weight will only make the bike take longer to rev up and hit smoother than without it not add bottem end.


Your are dead right ... I wasn't thinking !!! (Rushed the response). :thumbsup:

The increased flywheel inertia should have the effect of making the bike more "tractable" and less inclined to stall at low revs.

If you do a lot of low speed "chugging" in tight-going it would (in theory) make the bike a lot easier for you to ride in these situations I guess.

Never tried one or seen one on a bike myself but they sound like they'd work to a certain extent.
Depends on the weight of the unit I suppose.

Greg




 
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