Not long ago we began discussing that we had access to a lot of really cool SM parts. Shortly thereafter it was decided we should build a cool Yamaha SM. Here's some info on the build, hope you guys enjoy it.
So we started with a 2012 fuel injected WR450 and got to work - unfortunately, we didn't document much at first with photos, which doesn't make for an exciting build thread. For illustration purposes, here's an OEM 2012 WR450.
I think it's a great looking bike from the factory. I love the lines and styling.
First, we wanted to focus on improving the handling of the bike and enhancing the power output that Yamaha has hidden from the factory. So this means a full exhaust, full Ohlins TTX shock/cartridges and the GYTR ECU and programmer. We also got the CO tool, this helps richen the mixture at startup and low TPS inputs.
We also picked up an Acerbis Evo fender and a CP high compression piston. Not sure if we'll going that route or big bore yet. I love the programmer. It's relatively basic, but allows a wide range of fuel and timing adjustments.
To get some weight off of the bike, we ordered an Alien Motion 4 cell battery
as well as Driven sprocket set in supermoto gearing (more on the way) and a new chain.
The battery knocked a whopping 4lbs off of the bike. Not bad!
Next, we wanted to mock up the wheels from J's 426 while I'm waiting on our brand new Excel/G2 wheels
It's starting to look the part!