I am trying to set up a sled I just picked up. It is a stock 700 with reed spacers and corbon tech reeds And the psi pipes. It had 145 mag 145 cen 146 clutch. IT is boggy a little on low end. I am 0-3000ft I had a 145 in my box so I put 145 on all 3 45 piolt 2 3/4 on air screws 3.5 on needles. By what i found I need to have 142 mains. Can I drop the needles any more with out leanig out low end? Or do I need to take in the air screws? I am going up in the mountains this weekend so that will make it run richer. Am I stuck needing dif mains?
Those are fuel screws not air screws, so I think your working backwards there.
So I need to take fuel screws in?
for your elevation you need to be running 142.5's across the board pto needle at 3rd pos. 4th pos on other two and three turns out on fuel screws! if your gonna run the mountains you need to know the elevation you will be runnig at....3- 6000 ft you'll need 55 pilots and 137.5 mains put the needles down one clipand two turns out on fuel screws.... if running higher than 6000 ft you'll need 62.5 pilots and 132.5 mains, lowering the needles one more pos. and fuel screws turned to 1 and 3/4 turns.00sxrjoe said:
I will running at 3200 ft max I can only buy 2 142.5 mains so Iam stuck with what I have.
I've never played with the PSI pipes on that motor, but it seems a little odd that they would need the same mains as an unpiped sled would use at that elevation. As for the bog - your fuel screws are out an awfully long ways. Usually see them in that 1.5 to 2 turn out area. Just some thoughts.
00sxrjoe said:
Put the 142.5's in the center and pto side and the 145 in the mag side, I know this sounds backwards but we have found the mag side runs a little leaner for some un known reason on these sleds!but definatly turn fuel screws out to 3 turns and adjust the needles!!
We have our 700 at 145,145,145 45 pilots, 2 turns on the screw, you will have a little bog with the PSI pipes, to fix that we are engaging at 4700 RPM'S, it might seem like alot but it works, I did my own clutching so if you need to know that I will have to look it up on our records, but it is a very fast sled and great for aggesive trail riding, make sure you run that sled at 8400rpm's to get the most out of the pipes, PSI makes a great pipe for the redheads, Good luck, RJ
Well I left the 145 across needles all to 3.5 fuel screws are at 1 1/4 and bog is vary min. I thought psi made power up higher. I am clutched for about 8800.
Thinking about going back to stock pipe with slp can. I do not like the way the pipes sound my self.
If you are running 8800 you are out of the power band, anything after 8500, you are losing power, The noise of the pipes after 10 miles will get annoying, but my son loves the noise. I prefer being able to hear after we ride.
Ya I dont have the time to clutch it more tonight. If I had a wrap around I would put stock exhaust back on. That is what I had when I bought it. So I have no choice but to run it.
Psi pipes are made to run at 9100 rpm anything less and you will not make power!believe me when i tell you the jetting specs we are running, they are what psi reccomends!!! they have been tested extensively!rj21 said:
yammy said:
I thought psi ran around 9000. I just don't like the low end bog they have. Just need more tuning.