KX Riders

Maintenance & Technical => KX500 Original => Topic started by: martinfan30 on April 12, 2009, 11:25:33 AM

Title: WOT
Post by: martinfan30 on April 12, 2009, 11:25:33 AM: What are your thoughts on extended WOT operation??
Title: Re: WOT
Post by: stewart on April 12, 2009, 11:34:23 AM: salt flats
Title: Re: WOT
Post by: Johnniespeed on April 12, 2009, 12:13:46 PM: Stuck throttle ? Sudden death ? Hill climb champion ? Drag race winner ?
Title: Re: WOT
Post by: Good on April 12, 2009, 02:49:13 PM: Chasing the original adrenaline? :lol:

but really, in my case, it's more like overheating and a lack of power...
Title: Re: WOT
Post by: martinfan30 on April 12, 2009, 03:06:38 PM: Sorry, was in a rush when I posted. I just am curious as to extended WOT. I want to drag some buddies on their XR680R's when I go to Goler this week. I already went to 15 tooth front, but I think the 48 rear is too low. Also, I did a top end with goodies, and wonder how these beasts take WOT runs?
Title: Re: WOT
Post by: Motorrad on April 12, 2009, 03:21:18 PM: short answer.... Just jet it correctly
http://www.youtube.com/watch?v=evOOEnOYuOk
Title: Re: WOT
Post by: Polar-Bus on April 12, 2009, 10:56:05 PM: WOT with stock jetting? You can safely fall asleep with your wrist WO and drive all day without blowing up your bike. (as long as you have a nice clean air filter) :)
Title: Re: WOT
Post by: Hillclimb#42 on April 13, 2009, 01:10:25 AM: Wide open runs may require a bigger main jet. I am sure Stewart has this figured out. :-) Pull second off the line and sit as close to the gas cap as possible, face by the number plate. No way those guys will hang. BDI probably has some good drag set-up, judging by the pics and replys.
Title: Re: WOT
Post by: martinfan30 on April 13, 2009, 01:26:34 AM: OK, cool. Cant wait to spank these guys. Gave me crap for riding a XR650L, now we'll see!!! LOL

Hey, so when does the rev limiter kick in?
Title: Re: WOT
Post by: Hillclimb#42 on April 13, 2009, 01:31:11 AM: Doesn't matter, when the g-forces fall off, shift, hammer it. You'll be too busy with hangin' on and focusing to worry about hitting the limiter. the k5 chews up straight line runs.
Title: Re: WOT
Post by: Billua on April 13, 2009, 04:48:58 AM: Quote from: Hillclimb#42 on April 13, 2009, 01:31:11 AM
Doesn't matter, when the g-forces fall off, shift, hammer it. You'll be too busy with hangin' on and focusing to worry about hitting the limiter. the k5 chews up straight line runs.

Aint that the truth!
Title: Re: WOT
Post by: martinfan30 on April 13, 2009, 05:30:30 AM: Cool. I'm running 15/48 now, it didn't even blink at the taller gearing. Would a smaller rear sprocket be good for dragging, or is there a point at which the engine starts to struggle with gearing? I kinda doubt it...
Title: Re: WOT
Post by: KXcam22 on April 13, 2009, 05:45:50 AM: Taller gearing only comes into play at high speed. Then the air friction can become so great that the bike will not pull full RPM in 5th. That is why they invented fairings and V-engine road race bikes (narrower). Cam.
Title: Re: WOT
Post by: cbxracer30 on April 13, 2009, 06:13:00 AM: Quote from: martinfan30 on April 13, 2009, 05:30:30 AM
Cool. I'm running 15/48 now, it didn't even blink at the taller gearing. Would a smaller rear sprocket be good for dragging, or is there a point at which the engine starts to struggle with gearing? I kinda doubt it...
We're running 15/37 pulling 2nd gear hole shots , take it up too about half throttle and slide the clutch just bit you'll leave the 4bangers suckin dust. For extended WOF just make sure you're fat enough on the main jet-no white plugs.
Title: Re: WOT
Post by: Polar-Bus on April 14, 2009, 04:18:38 AM: Quote from: KXcam22 on April 13, 2009, 05:45:50 AM
Taller gearing only comes into play at high speed. Then the air friction can become so great that the bike will not pull full RPM in 5th. That is why they invented fairings and V-engine road race bikes (narrower). Cam.

I agree. Out on the lake ice, you get a good opportunity to feel exactly how much "gear" a KX500 can pull before you effectively "govern" the rpm's and speed. I was able to pull a max gearing of 15/42 before I felt the rpm's flatten out and not gain any more speed. Remember the KX500's tranny uses overdriven gears in BOTH 4th, and 5th.
Title: Re: WOT
Post by: Rd on April 14, 2009, 02:10:08 PM: Get some videos against the 680s, curios to see how it goes.
Title: Re: WOT
Post by: martinfan30 on April 14, 2009, 03:45:55 PM: Will do. I have ridden a few of them, but i really think they are no match to a fresh, modded kx5.
Title: Re: WOT
Post by: Rd on April 15, 2009, 01:08:10 PM: If both bikes hook up good I think the K5 will get the job done. My buddy has a 2000 K5 I ride sometimes. It seems to be stronger than my XRr.