I've mentioned this a couple times in threads and now I'm getting PMs about it.
I promised to write it up. I haven't had time to and I'm off riding again this week. I'll get to it, with pictures and more numbers, but for now, here is what I have done.
Done: Starter: 1.63 lbs
Done: Starter idler gears: 1.05 lbs
Done: Tank mount bracket: 0.39 pounds with the 4 bolts <-- needs reinforcement though
Done: Starter switch and harness to right side rad mount 0.11 lbs
Done: Boil off vent hose, tank to under bike, 0.15 lbs
Done: Head light assembly 1.45 pounds
Done: Reflectors: 0.72 pounds
Done: Trip computer assembly: 0.88 pounds
Done: Battery: 4.60 pounds
Done: Snorkel: 0.52 pounds, with screws
Done: Starter relay, cables, isolator rubber, other relays, etc. 0.88 pounds.
Done: Boil off bottle and connector hose: 0.52 pounds
Done: Battery tray, boil off bottle fender plastic, ECM rubber isolator: 0.44 pounds
Done: Breather reduction off starter port. 0.13 pounds gross, about 0.12 pounds net
Done: Throttle body harness holder. 0.06 pounds
Done: Front brake line bracket 0.13 pounds
Done: Skid plate rubber block 0.11 pounds
Done: Aluminum rear sprocket 1 pound net. stock 1.78 pounds - new 0.78 pounds
Done: Starter clutch and gear. 1.45 pounds, lighter flywheel and less gyroscopic mass as well.
Done: Handlebar ends trimmed off. 0.06 pounds
Done: kickstand 1.16 pounds
Total 17.43 pounds.
260 lbs stock, dry - 17.43 removed = 242.57 pounds, dry.
I have made a couple small additions that are not in the list.
This list is by no means complete or comprehensive, but it gives people an idea of what I've been up to. Best of all, most of these removals are very inexpensive to do.
I have another 6 to 10 pounds of weight reduction planned. Thus far its been very easy to remove weight from this bike. Yamaha builds things very robustly.
The most contentious removal will probably be the starter. Frankly, I don't see the need for it and being a new (returning) rider, I've been stuck in some very tight spaces with my bike since I got it a bit over a month ago. For those not aware, the WR450 starts excellently with the kick starter. Once the throttle is adjusted, 1 kick does it even when its hot to the point of boiling over. And it doesn't flood when you stall it or tip it over either.
Its interesting to watch Graham Jarvis vids... he almost always appears to use the kick starter on his TE300, even though it has electric start.
FYI, I'm weighing everything with a Berkely (15 lb?) digital fish scale. You need to have something like this before you tackle a project like this.
Edit. Correction. I'm using a Rapala scale, not a Berkley.
I hope this helps someone.
Edited by MidlifeCrisisGuy, September 13, 2013 - 08:03 AM.