2006 Yamaha WR 450f Performance Mods?
Posted July 31, 2006 - 07:00 PM
Posted August 04, 2006 - 12:54 PM
Posted August 04, 2006 - 02:25 PM
Somewhere in this forum it says you can get 90% of the power out of a WR450 doing the free mods but for those that want that last 10%, it requires more effort including a pipe mod. If your happy with how it runs, then that leaves more time for riding. I like to get all the bike can deliver. This forum has a lot of inexpensive mods that make a lot of difference on how it runs.
In fact if you want a good laugh, call the Yamaha Motor Corporation and ask a technical question. They haven't a clue. In fact I told the people I talked to, to read this forum and become educated. However they only let dealers talk directly to the techs.
Posted August 05, 2006 - 09:14 PM
Posted August 05, 2006 - 09:26 PM
Personally, I think that you should have got a wr250 if you can't handle the power of the wr450.
Personally, I think that going with an after market exhaust is over kill. You make the bike way noiser than the stock, just get the pro moto insert that opens up the exhaust "enough". I have yet to come across a rider that handle all that the WR450 can hand out in the way of power once the mods are done. So unless your a pro, save your money, and your ear drums. Do yourself a favor and read this article it relates to a ISDT pro that has a OHV training facility in Idaho.
Posted August 05, 2006 - 09:30 PM
No, free mods would add about 10% of the power that you would gain from a good mx system on the WR's.
Somewhere in this forum it says you can get 90% of the power out of a WR450 doing the free mods but for those that want that last 10%, it requires more effort including a pipe mod.
It is the exhaust that is the restriction, a tip won't do much at all unless you knock out both the baffles.
Posted August 06, 2006 - 07:29 AM
Posted August 09, 2006 - 11:03 AM
Posted August 11, 2006 - 09:45 PM
Well, yes and no. They get really really hot, but it also could be from running lean. I can only see mine glow at night.
Just took my first ride on 05 WR450. Should the exhaust be glowing red?
Go through the jetting sticky, use indy's jetting chart for a guide to rejet your bike. The benefit of doing this is not to stop glow (it will to some extent), but to add power and nice crisp throttle response.
Posted August 26, 2006 - 07:53 AM
Seems to run pretty good but I know there is more left on the table.
Posted August 28, 2006 - 10:04 AM
Posted August 29, 2006 - 08:14 AM
2:unplug Grey wire from 6 pin connector under gas tank (right side) this changes the timing to YZ specs
3:drill out rivets and remove plug from internal exhaust tip
i haven't re-jetted (not sure if i'm going to) mine seams to run fine with stock jets, minor popping.
These 3 mods make a major power difference.
Posted August 29, 2006 - 12:14 PM
Posted September 01, 2006 - 03:50 PM