High Elevation Jetting
#41
I go over passes around 10000 feet on three bikes, with no problems. One is my KLX, one is a KLR650 (both CV carbs) and one CB919 EFI. NONE have any problems. Both K carbs are tuned for about 2300 ft. Don't know if that helps you or not, but, like TNC says, I think you'll be fine.
#42
FYI, i emailed Dyno Jet about high elevation jetting, this is what they had to say:
You will need to go about 4 points smaller on the main jet and lower the needle one groove for every 5000 feet that you go up. Also turn the mixture screw in about ½ turn.
You will need to go about 4 points smaller on the main jet and lower the needle one groove for every 5000 feet that you go up. Also turn the mixture screw in about ½ turn.
#44
Im still gathering parts for the trip... clarke tank will be here friday. Gotta stop at the dealer soon for a few odd and ends. Ill order those a/f screws with in a month and ill let ya know. Just bought another handgun... spending too much money...lol. What the hell its only money right?
#48
Sweet guns, wish it wasen't such a pain in the *** to own handguns in canada.....not that I don't but there is a bunch of bullsh*t to owning one. And you can't just walk out in the woods and shoot it. Well legally anyway
#49
Extended Replacement Fuelscrew FS-2 from Koubalink Motorcycle Lowering Links
I believe you can order just one fuel screw from them, but if you order from koubas website you have to order min of 25$ The FS-2 fuel screw that fits the KLX250 also fits my KLR650, if i order two i might just keep the other one for my KLR650. Try that carls cycle site, if you cant order one let me know ill get two and send you one.
#50
Hey EMS glad I found your post. I'm from Pittsburgh (Beaver), but I've been living and working in Mammoth Lakes, CA this past ski season, and I'm bringing my bike out here at the end of May, beginning of June (14 day delivery window). Every thing I found online points to jetting 2 sizes smaller for my altitude (town is 7,900 msl, work is 8,900 msl. But after talking to some of the locals to get shop references, the general consensus is that, unless I'm never planning to go far from town, I don;t need to jet optimum for this altitude. Jetting for this altitude will make the bike run good here, but will be too lean if I decide to ride the 5-6 hours to LA. The 2 shops that I talked to said get the bike up here and ride it (both said it should run, but a good bit rich) and start by adjusting the clips on the jets (can't remember if they said drop or raise them, gotta call them back), riding a bit, then pull the plugs and check the condition and color. Repeat until the bike runs smoothly and the plugs are not seriously fouled. They also said if the plugs are really fouled, put in new ones and ride the 45 minutes and 4,000 feet down to Bishop with the old plugs (for reference) and they would put in smaller jets. Seems as though smaller bore bikes like mine (1988 250 Eliminator) are less sensitive to jetting because they have a higher intake velocity than larger bore bikes. I did enjoy all the info everyone posted, and if time permits I post my real world results in June. Enjoy your trip, for the next one check out the Mammoth Lakes area, they have a big trail / off road population out here, although I have no idea how it compares to CO.