Glowing red head-pipe?
Posted: Fri Aug 24, 2007 5:47 pm
Hey guys,
First thing's first: I feel honored and excited to become a part of the group here - I purchased an '06 450R last Friday, which the original owner bought in May of this summer as a left-over. He rode it a couple times in his back yard, so in addition to its being showroom new, it's also showroom stock.
(Wasn't even finished the break-in cycles, so I did that last weekend, and changed the oil & filter afterward).
That having been said, I just installed an aftermarket fuel screw to allow for easier adjustments. One thing I noticed before and after the new F/S is that the headpipe glows red, after about 3-4ish minutes of warm up.
I know the 450's run hot, but is that normal?
Not quite red enough to toast marshmellows by, but a tad longer and I may have been able to. I adj. the fuel screw to about 2.5 turns, just to where the idle begins to drop down. Any leaner than 1.75 turns seems to cause the idle to want to hang high a moment and drop slowly after throttle blips (symptom of too lean).
I came off an '04 250X, having done just about everything I could to it to make it more track friendly... And, while quite a bunch more powerful, I cannot get over how much lighter the 450R feels. Even to work on, it feels like more the weight of a 2-stroke 250. It's fabulous.
thanks for any tips.
-matt
First thing's first: I feel honored and excited to become a part of the group here - I purchased an '06 450R last Friday, which the original owner bought in May of this summer as a left-over. He rode it a couple times in his back yard, so in addition to its being showroom new, it's also showroom stock.

(Wasn't even finished the break-in cycles, so I did that last weekend, and changed the oil & filter afterward).
That having been said, I just installed an aftermarket fuel screw to allow for easier adjustments. One thing I noticed before and after the new F/S is that the headpipe glows red, after about 3-4ish minutes of warm up.
I know the 450's run hot, but is that normal?

I came off an '04 250X, having done just about everything I could to it to make it more track friendly... And, while quite a bunch more powerful, I cannot get over how much lighter the 450R feels. Even to work on, it feels like more the weight of a 2-stroke 250. It's fabulous.

thanks for any tips.
-matt