what to do to improve......wr 450
Posted March 13, 2003 - 02:14 AM
I did that because of the benefits in cooling capacity, gearbox, e-start,bigger fuel tank.
My suspension got to be revalved/new springs anyway.
My question now is how to get my engine at the YZ450F level???
Are there any dyno results available of a standard/prepared WR?
Wich are the major differences between wr and yz engine?
What with the jetting specifications?
A lot of questions, i know, but after reading a few posts here i become to be afraid that i made the wrong decision on how easy it was to transform wr into yz horsepower!!!
Posted March 13, 2003 - 07:47 AM
Posted March 13, 2003 - 09:38 AM
What is the exact difference between yz and wr exhaust cam?
Are the inlet cams the same?
What are the differences in jetting?
When i use a motocross pipe do i have to change the airfilter more than just remove the snorkel and baffle?
Posted March 13, 2003 - 04:00 PM
The following mods are pretty easy:
Air box snorkel removed.
Replace the muffler with one of your choice for noise since the European corks are welded on.
Rejet your carb with a standard YZ needle and appropriate jets. This part can be confusing since there are a lot of jets but you can ask racers in your area what jetting they are running. Get a Zip-Ty fuel mixture screw. Dont worry about YZ timing. Ride and have fun!
Posted March 14, 2003 - 12:13 AM
i'll keep you informed.
I'm planning to do a dyno test completely standard (euro specs) and then one with the modifications.
The exhaust will be a complete akrapoviç system
looks nnnnice, and look at the chart!!!
Posted March 15, 2003 - 07:06 AM
Posted March 15, 2003 - 07:12 AM
Posted March 17, 2003 - 02:33 AM
We dont have mxa over here before next week.
Then i'm gonna buy it.
Is the article worth the money???