I would need some instructions on the installation of a tempo flow unit on a 2001 Mach Z. Is it better to install unit in the air box ?. Where do we obtain the vacumm.
A photo if available will be appreciated.

Go here. You can get the install instructions right from their site.
http://www.holtzmaneng.com/

Thanks, I did go on the site and seen all the info I needed. For all of you guys out there, on a mach z with flat carb, the vacuum source is obtain by drilling a 15/64" hole in the carb slide cover plate. Insert a fitting and all is done very simple.

Also remember the device itself goes "inside" the air box with all lines coming out thru drilled holes. I mounted mine in the upper pto side high up near the curve. The vacuum line worked out great coming across the front of the box and down to the mag carb. This line must be in the 24"-26" range.

Yes, I did installed my tempa flow pretty much in the same place as yours. I also dropped the 1/2 " vent tube with the attach tee at the end in one of the round air vent tube inside the air box. The tee is in the lower compartment of the iar box in front of the carb opening. My 2001 Mach z has 290 jets stock, do you think that the factory setting of the tempa flow will be correct. Thanks.

I put my tee in the back of the box in the lower compartment where the battery would be. I would not go thru the tube as this would restrict the air flow to that carb. I actually drilled a hole thru the shelf and went down. All I can say about the jetting is I know mine was a little lean at 0 so I went up 1 size to be safe. Can always click it one to get it where you want. Cant say how it works as it is new to me for this season also but I did my home work and this is what I came up with.

Thanks, I will put my tube and tee at the end of the box also. I will need to split the air box in two I think in order to do what you did.

The biggest thing to remember is that if your carbs were originally outside vented (outside air to the vent tubes on the carb vents), then they have to remain outside vented after the tempaflow install. If they are outside vented and drawing air thru the big air input tee from INSIDE of the airbox--that is not correct. The only way that is correct is if the original carbs had there vent lines run back to the airbox and drew there vent air from the airbox. The airbox is a vacuum and venting your air input into the airbox when it should be run outside will create a leaner then normal condition. If you keep that simple rule inmind then the install is easier to follow.

HTH

Tony

That's correct Tony.
Rick I drilled the hole in the back of the box a little off from center so when you put the box back on the end of the tee sticks out in the area where the battery would go for electric start. I found it to hard to use the straight fitting so I used the tee and plugged the one end[acts like a 90 this way]. Drill the hole a little under size thru the box so the fitting is tighter then zip tie it so it cant pull back thru.

Mikadoo, I have been checking around the instruction on where the vent should be located. It states on the tempo flow instruction thatt if the carbs, are vented through the air box like we have on the F111 & Mach z, the vent tube & the tee should be loacted inside the air box and perhaps below the shelve inside the box. However if the carbs are vented with air tube coming from along side of them or attach to the air box etc. The vent & the "t" should be mounted outside the air box. A good location would then be behind the box. If you have another theory, let me know. I'm sure that you also want to be sure on the right location. If it is not at the proper place, it will cause the unit to lean out at certain temperature.

Rick I think we are both saying the same thing but I will say it again.
If your over flow tubes just hang down free under the carbs then you would NOT put the 1/2" vent tube inside the box, but, you still run it inside, just drill a hole and stick the end thru so it vents the underhood air not the inside box air. OK?
All Z's from 97 up had outside venting like ours. Some 99 and up [Tech Plus] has DPM so a Tempaflow is not needed.
I had a hard time at first understanding this but a couple of guys on here [Jim Fritch & John Breedon] made it all clear. Once I started it, it was VERY simple. The hardest part was figuring a good place to make it look good, no kinks, and not affect any other functions of the sled.

Hey there, don't loose you patient :D I think that I will be getting it soon. You say that our ski doos have outside venting through the hood, therefore we are suppose to drill a hole through the airbox and route the 1/2 " vent line through the box and then finish it with the tee at the end. A proper place for this would be behind the box like you have done. In the instruction there are saying that there are 3 kinds of venting. 1- through the hood 2- with the handle bars 3- the air box.. I was thinking that our carbs were vented through the box. One of me friend has a F111 800 also and he put the unit in the top portion of the airbox and then he just let the vent tube lay into the inside of the box and he has had no problems. Anyway, sorry I just want to make sure that we mount this vent line properly.

Mikadoo, I think that I have finally got the theory. I have read the instructions over & over. If our carbs would have been airbox vented it would have had some vent lines inside the box. Just one thing, your tee, you have plugged one end and attached your line to the other forming a 90 degree and then you passed one remaining end through the box & secrured with a tie wrap. You then have a one hole exit out of your airbox is that it.

Rick, not losing patience, I know how you feel you just have to read the instructions over and over till it hits you. If you wern't so far away I would be glad to show you.
Just remember that you have "underhood venting" and forget about the other kinds of venting. The device itself MUST be mounted IN the box. All lines MUST be hooked to the device [and zip tied] for insurance. You have a max of 4 holes to drill in the box. 1 the device with the white screw head has to go thru 1 drilled hole and that line runs to the mag carb for VACUUM.
2, the other end of the device [1/2" tube"] goes thru the shelf after you drill a 1/2 hole and down thru another drill 1/2 hole drilled in the back of the box, this is your underhood vent.
And 3, the little line goes straight up [pointed towards hood] from the device thru the 4th drilled hole in the box [5/16 I think] and it connects to 1 tee and that tee connects to 2 of the carb nipples.
I connected the 4 way like the 2 pointing down to the center carb and 1 from each side to the farthest carbs nipples. Then the last 2 nipples to the tee that connects to the device. WOW are you confused now?

P.S. If your buddy left all his lines inside the air box loose then he will have a burn down sooner or later. Only way to leave the lines their he would have to jet about 6 sizes up and raise the needles and change tubes. It would be a nightmare to figure it all out! :hallo3:

I received my tempa flow today and I have some questions for you guys. My mach Z 2000 is not in my garage and I cannot verify myself. How many vents the tm-38 have ? The venting method is under-hood is it true ? The box contains one 1/2'' tee white and one 1/2'' white fitting. Which one you use for air box venting ?
Thanks. I appreciated your help and sorry for my bad english.

Thanks man, you were a good help. Know I get it right. Our carbs are outside vented therefore the unit goes inside the airbox and then the famous 1/2 " vent line is routed inside the box but needs to go through the rear for proper air vent flow. Talk to you later. If you need anything , drop a note and I will be glad to help you. See you, heve fun this winter.

Mikadoo, are you still around ? Just wondering one thing. The cards vent lines, these lines run over the carbs and goes along the side downward and is attach in a rounded small bracket which is attach with a screw on the float bowl. Just want to make sure of one thing, I cut these lines just above the carb neck and installesd the t's there and then routed each t's to the 4 way t. Is that how you did it ? Thanks again.