Here is a cheap and easy idea that you may or may not need.
Install a TPI valve in the airbox lid and leave it closed until you feel you need leaner jets and then simply open the TPI valve up some to "air jet" it instead of doing it with hard to install main jets that you will have to change again when you come back down. The additional air coming in the air box will lean it up same as going to smaller jets would.
If you don't know what a TPI valve is or how to install it then you can watch our video of our carb kit which also shows you the TPI valve install.
He said he was planning a trip to Colorado so I assume he is in a lower elevation. I'm suggesting he add the TPI valve with no jetting now and open it as he needs it going up which will let more air in and lean it up for him without having to put smaller main jets in there. It also would be a good idea to go with weaker diaphragm springs so his slides operate correctly with the additional air plus they might help back on normal ground too with a quicker opening slide which adds to performance.
Once he returns he can close the valve and be right back at normal.
Theoretically a guy who changes his riding elevation and has our kit really needs a third valve to be able to do this.
Todd, I think I understand what you're saying here, but just to make sure: When I order the programmable CDI, I'll have the dealer put in jets from your kit for optimum performance for riding in Northern Wi (1600 ft). When I go to my cabin in West Central Wi (closer to the Mississippi & only 900 ft) nothing need be changed. In October when I'm hunting in Montana (3500 ft) I may consider, but not necessarily want to rejet to compensate for the thinner air. But, with the TPI, I would need only open it slightly to bring in more air. When back in Wi, I'd close it back up & presto, I'm back where I was (literally & performance wise). Hence-air jetting instead of the nuisance of rejetting. Is the TPI included in your carb kit or is it a separate item you sell?
Thanks for the help I am at 500ft here in Chicago and make annual trips out west. Like I said the Rino 450 did alright but ran like a 250 above 8000 ft. I assume the Teryx is lean jetted from factory. so it should be ok I will look into the air jetting thanks.
Dokkema....I didn't mean to jump in over you in asking Todd about my situation, but I think you & I have a similar situation, but yours is greater (500ft to 8000+ vs 1600 to 3500+). After watching Todd's carb kit install video, it looks like "air jetting" really makes sense. I would probably open the TPI slightly, if at all, in Montana, but you would definitely open yours much more in Colorado. Sure beats messing with jets (which I wouldn't trust myself doing). I imagine you are appreciating that "World Book" of info as much as I.
I live in colorado and ride about 9200ft I had to do nthing to it. Actully I had a problem with it cutting out at half trottle. I took it in to the kaw shop to rejet it. they told me i was already running a little rich and they took out the little air snorkle in the breather out and has ran fine sinch. So I don"t think you need to rejet.
I live in Colorado and stock at 10,000 feet the teryx ran ok. It would go about 30-35 top speed. It did miss out some on the higher rpm's a little. I am going to rejet mine since I live here and add a dynatek box and open air intake. If you have anymore questions let me know.
Well I did get a jet kit from dragonfire and I am in the process of installing it. It came with springs, needles, clips and jets. My intake has yet to show up so I will see how it runs with the stock box with the lid off. I hope it all works good I have heard both good and bad so I guess I will see what happens. Thanks
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