Man i sure couldn't beleive it when i took my bike up to Northern Cali last weekend. I was about 1800ft and 2800ft in the mountains. Anyways i noticed several things:

I own a liter bike now, not a 600. i gotta slow the hell down in the 140 degree turns and sharper...i mean the bike feels alsome and being in 1st and 2nd all the time makes it alittle easier. but its def. not a 600 (news flash i know). but it was fun and it really handles alot better than my 954, and i am sorry to say the 04 CBR. i am glad i waited till 2006 to get a new one.


When i rolled on to WOT in first the front wheel only lifted about 8inches or so, and shifting into 2nd hard didnt lift it at all. then reving to 7000rpm, chopping throttle, then going wide open only got me like 2ft or so.....pathetic... Furthermore, just getting the bike straight out of the drive way, and then punching it barely got the wheel up as well. it was very disappointing.

Just as soon as i got back to Sea Level though, wow, it was so much stronger in every gear. from 1st, to 6th on freeway. it went back to just tapping the gas in 1st does monster wheelies, WOT in 2nd got the wheel high enough that i had to roll off to get it back down. standups in 3rd were no problem either. (i am starting to get the hang of this bike now, i am at about 2mi wheelies. For thoses of you who have not yet noticed the BP on this bike is way higher than the 929 and 954 and even my f4i)

So in conclusion: i had a absolutly alsome (am i spelling that right?) time this past weekend up in Lake County. i got to drag my heels at 140mph and 55mph.

finally, is what i noticed at 1800-2800ft common, is there any setup that will let it run like a bat out of hell at any level with no adjustments? Also its very beleivable to me now that the bike dyno's at 150's at sea level and 140's other places...i could sure feel it.

so thats my story guys, any comments my friends?

 

First off, the correct spelling of a few words:
awesome
believe, believable
litre
revving
absolutely
a lot (two words, not one)


Now with that aside, sounds like a lot of fun. Too bad you could only get as far as 2nd gear. As for you question about setups for above sea level, don't think there's much you can do. Remember the higher above sea level you are, the less dense (or lighter) the air, therefore less ram air intake and the harder the engine has to work, etc. (someone correct me or elaborate on this if you can). It's just like how your lungs would have to work harder to breathe in and absorb the oxygen, so goes your engine.

 

thanks for the corrections.....i cant spele for ****te!!

also doesnt 1800-2800ft alittle low to start causing problems with performance?

 

Air gets thin as soon as you go above sea level and gets worse the higher you go. Don't know the exact height it might start hindering performance, but I'd say roughly 500ft. I'm just throwing a number out there. I'm sure you can find some info on it somewhere on the net.

 

I ride above 5,000 feet all the time, but I don't notice a real difference until above 10,000 feet. But I have carbs, fuel injection should compensate for a 2-3,000 foot elevation change.

 

i have old skool cbr...and have no troubles in high altitues...
yea the bp is higher because the wheel base is longer...

why would you want to drag your heels?

 

I'm kinda thinkin' the FI should completely compensate for atmosphere up to 5K feet. I haven't noticed a real change when riding in the mountains (our mountains ain't the rockies though[8D]) up to around 4500 feet.

 

+1 with chain, i have ridden my bike from a from hundred feet above sea level to almost 8000 ft, and really haven't noticed much of a dif. Back in the day, carburated bikes had to be rejetted, but that's why the industry went to f.i.....has anybody else had this problem?

 

man i wonder whats up with my bike then??

and to the guy who asked why drap heels??

i guess i should have said drag knees??

 

Hey, just be happy Tahoe was off his meds when he posted that ... usually he's indecipherable

And there may not be anything wrong with your bike. Humidity, temp, altitude all play a part in how much power you make. Could be a combination of things that had you down just a bit. If you were riding with others I'd ask them how their bikes were affected ... if they saw no difference then there may be a sensor on your bike not compensating for something.