I turned the heat on in my garage an hour ago.. going to go crack a beer and read the instructions over a few times.tnmemr said:The only reason to go fatter on the mains is if you plan on running at extremely cold temps. Most sleds will work well with factory or leaner jetting. I've run -35* and lower with factory (fat) jetting as have many and the sled was still rich. The problem comes when people who are new to jetting/tuning looking for shortcuts to get them dialed in. I've learned the hard way, with pistons, that you can't take big jumps and/or shortcuts like the info on websites. Follow the instructions, after reading them a few times over a beverage or two. Then slowly make your plan to install the device. Holtzman has updated his instructions again and are available on his website. He is also a great guy to talk to. Be honest, if you have no clue what you are doing, say so. Much easier to help explain things.
Do NOT put 460's in it, you don't need them, I ran 460's with an ATACC on a Pro-X 800 and I could have ran 450's. That was with a pipe too. That 700 don't need that big of jets.Big-Bore said:I have 440 mains (stock)
Says to jet it for -20'
In my factory jetting chart it says for -30' to -10' jet it with 460 mains. Here I bought 430's last week thinking I was suppose to jet it down a notch.
Since everything seems to be rich from the factory would it make sense to leave the 440 mains in it with the tempaflow? or get the 460's
tnmemr said:dohicker? The key is to mount the Tempa Flow body and the air tube that the body draws the air from in the same area and elevation as the vent lines and will "see" the same temp. air as is entering the carbs. If your air box has a divider shelf, it is best to mount it below the shelf.
Both of you say to go under the shelf and the instructions say to make sure the dohicker is mounted above the shelf???? then vent the lines down to the stock ones below the shelfDman said:It is a little bit intimidating at first. I just put on in the 01 800. Not sure if that is the same airbox setup as yours or close. My "Dohicky" is on the PTO side, under the shelf. One line is out the side of the airbox (vent) and the larger is out the front toward the carbs.
This is right. If your sled is jetted safely for -20 then thats where you would leave it as a Tempa Flow has zero effect at that temperature. Once the TF has been installed, it is left alone to adjust fuel as madcow stated.madcow said:if you are trail riding now with 440's that is what i would tune around. if you unhook your vent lines it would jump the jetting close to or fatter than 480's, the tempa flow will have no problem adjusting around your known jetting.