'08 WR 450 Throttle Stop Questions
Posted July 06, 2009 - 02:47 PM
ALTITUDE RIDING RANGE: usually 7,500 – 9,000 feet (sometimes as low as 5,000 and as high as 10,000 feet above sea level).
RIDER: 6” 1” / 200 lbs suited up, 45 years old. This is my first off-road bike and I have enjoyed riding it on the trails and jeep tracks in and around Santa Fe, NM. My comfort level and skills are improving each time I ride however, I would like more power and snap but I am not ready to turn it into a YZ 450 – therefore, I am considering doing just the throttle stop mod for now.
1. If I was to ONLY do the throttle stop mod, but not do any other mods such as jetting, gray wire, removing the “pea shooter”, air box mods, etc… would that be harmful to the bike?....will it increase bogging?
2. Some posts indicate that the GYTR throttle stop screw has been the cause of the throttle becoming stuck wide open – am I better off making my own?
Any other comments / suggestions on how I can gradually increase power / snap as my skill level increases - MUCH APPRECIATED!!!!
Posted July 06, 2009 - 03:19 PM
When you do the snorkle, do the pea shooter and do a jet kit too.
2) No, that usually occurs when the thottle stop was cut in stead of prelaced and it was cut too short or the owner removed the slide (there is almst never any reason to remove it)
If you want to control the power, just use common sense with your right wrist.
You can unclip the grey wire from the plug, if you find it too zingy, you can simply clip it back in.
Posted July 06, 2009 - 04:14 PM
Read the riding tips forum, remember to put as much weight as possible on your outside peg when you turn is a must know and to remember it at all times when your are try'n to rip around.
At 200lbs plus gear, go get some springs front and back, you will find in stock form that the front tends to push out on corners. This you can do yourself with a few purchased tools or home made tools etc.
Posted July 07, 2009 - 04:25 PM
Thank you for the reply - it helps to hear from other riders.
Posted July 07, 2009 - 04:35 PM
Thank you too for your reply. Hearing that I will just gain a little by doing all the mods makes me feel more comfortable. I definitely was going to work on the suspension as well as it feels like I bottom out the front forks on some jumps.
Regarding setting pre-load, I located a "how-to" on you tube:
If you have an opinion on it, let me know. I'll also take a look at the riding tips forum.
Posted July 07, 2009 - 06:50 PM
I put a set of works connection .48 springs on the front with 7.5 wieght oil, and on the back I bought a 5.8 race tech spring. My weight is 210 225 lbs. I would recomend this for you --- at times I wish I went 1 size up front and back, all mx's r made to bottom at some point, if they don't you are over sprunge? From what I have read, the yami springs can be hit and miss when it comes to true spring size ratings from factory specs.
Posted July 12, 2009 - 09:20 PM
Both on the thread and via PM's. Just placed my order on TT as I am gearing up to do all the mods in a few weeks. Will post my results and anything that might be helpful.
Posted July 12, 2009 - 10:44 PM
Posted July 13, 2009 - 03:01 AM
Posted July 13, 2009 - 06:10 AM
I'm 40 this year, do not know what a gym is, and bought a 04 WR450 last year as my first off road bike, and ran it all last season with all of the free mods done. Bike was VERY managable, yet lots of power there to play with and big grins, IF you wanted it. Don't want it, simply don't twist as much, and short shift it (Your going to like it, and want more once you have it though.... ).
This year, I put in Hot Cam's, FMF pipe, and JD Jetting, and now the thing REALLY rocks!
Also, I'm in the 240 range, and springs front and back for your wieght is pretty much a must...I drove myself crazy last year trying to figure out my suspension last year...there is no figuring it out until you have the correct springs, which I now do.