1vj tenere at high altitudes ?
 

Hi folks. Im planning a trip to south america in the next few years and am wondering about bike choice. I was going to buy a f.i. Bike to cope with the altitude changes, but im not sure the money will stretch that far. At the moment i am toying with taking my 1vj tenere, but have heard they are pants at altitude - and i know what a pig of a job it is to change the needles/jets. My question is how easy is it to retro fit the air compensator thingy off a 3ds tenere? Does it work? and how easy are they to find? (Ok that's 3 questions). Any thoughts?
Cheers,
Karl.

I think it's a stand alone system that is installed with the carb , not really bike specific, so shouldn't be too hard. Sweden is the only country that used them IIRC.


One other option that may help to a certain extent in the need for changing jetting is to install 2 or even 4 Dial-A-Jets on your carbs. What they do is allow more easier jetting changes without need to remove the carb(s). When istalling you go 2 or 3 main jet sizes smaller than normal and the Dial-a-jets setup then adds the remainder as needed by the motor ,so at higher altitudes you can lean them out quite a bit (the more used the more adjustment you have). For the lowend you turn the mixture screw in to lean out that area. It's a different setup and not very common so people don't understand it but I've used them on several quads and bikes , they work , not sure if enough for extreme altitude changes but I wouldn't doubt with 4 there'd be enough.

EFI would be ideal if using a closed loop system , so an O2 sensor can tell the ecu to pull fuel , otherwise a piggyback controller would be needed to pull fuel as you go up.

Have a read HERE & HERE.

Mezo.

If his carbs don't have the nipples in one or both of those spots I've used threaded nipples in a few carbs ,

McMaster-Carr