400 vs 426 vs 450
Posted April 24, 2003 - 07:33 PM
Oh, and another thing - if I can't get my hands on a WR...Is there anyway I can convert my YZ to a WR besides the gearbox?? I was thinking electricsystem (lights and so on...)
Posted April 25, 2003 - 07:36 AM
Posted April 25, 2003 - 07:49 AM
Posted April 25, 2003 - 08:54 AM
Posted April 25, 2003 - 12:00 PM
Posted April 25, 2003 - 04:36 PM
Posted April 25, 2003 - 05:55 PM
"Fortunately, Yamaha made the WR stator powerful enough to run a dual sport lighting kit. Unfortunately, they grounded the lighting coil to chassis. This ground needs to be disconnected so that we can rectify the alternator's output to DC."
Posted April 26, 2003 - 05:13 PM
Mainly, I'd like a YZ with lights...Just a teenie-tiny front light and a brake light...Possible on a YZ or?
FWIW, the WR has a heavier flywheel, different cam timing, coolant overflow/reclaim container, different gearing, stator to drive lights, lights and a spark arrestor.
For long rides the coolant catcher is nice. The heavier flywheel reduces wheel spin. The cam timing adds torque but at the expense of some power so it's a trade off (easily changed for $0). A YZ would need a different stator and lights. If you want to trail ride you should have a spark arrestor.
If trails are what you want the WR is the better option. If you don't need some of it's features a YZ is fine. Adding WR features to a YZ can add up $$$ fast.
Posted April 28, 2003 - 05:03 PM
Posted April 28, 2003 - 05:19 PM
Posted May 01, 2003 - 06:50 PM
Posted May 02, 2003 - 08:20 AM
All you'd need to do to one of the DS kits is add the proper diode to the wire that attaches to the new wire you add to the stator and then attach it to the frame (ground) instead.
However... wouldn't this cut the power generated in half?
The battery (or a capacitor?) would even out the pulses.
Posted May 05, 2003 - 12:19 AM
1/. Big power difference - my 426 will generally pull 1 gear higher than the 400 at low speeds. (top speed is about the same).
2/. 426 runs erratic at a constant throttle opening (hunts) I'm told this is std. I haven't cured this yet.
3/. my 426 is unstable at high speed - it goes into a 'tank slapper' when riding over small ridges (on road above 60mph).
4/. swing arm & suspension linkage is different.
Both bikes have same tyres & suspension set up & both have airbox top removed & engine breather re-routed into airbox (400 sucked water up into the engine when riding in a stream at Isle of Man last year - needed instant oil change).The 400 has tapered titanium header & white bros silencer renthall bars.426 has std. exhaust, aero tapered bars (these make bars @1" higher on std. top yoke due to risers).
Off road the 426 is much better, on road I prefer the 400.
Hope this info. helps you. I'm off mud digging now - Cheers - Don.