Jetting Summary for the IQr - Page 4 - HCS Snowmobile Forums

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Old 12-31-2008, 03:52 PM   #31 (permalink)
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Current Sled(s): 09 IQR 800 153", 10 HCR 800
Previous Sled(s): 05 IQ 440 600HO 660 800BB 797, 04F7SP
Location: New Hampshire
Favorite Riding Area: Can't get there from here
12-13 Mileage: odometers
11-12 Mileage: are for
10-11 Mileage: pussies
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03 Big Block 800 w/ pods, Neils Pipe, VF3's, pump-gas case/cylinder porting:
Needle-9DGN6-57, middle clip w.5mm washer under clip,
2.5 slide,
420main,
45 pilot,
145 starter,
1.75out on fuel,
.75out on air.

TEAM 120-340 (YELLOW)
10-66 weights
TEAM Red/Black secondary
66-44-42 helix
43/22 gearing

136x2" paddle
175lb rider (w/gear)
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Old 12-31-2008, 07:05 PM   #32 (permalink)
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Current Sled(s): IQr 1200
Location: The 906.
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03 800 VES, twin slp race pipes, case porting, slp power dome heads w/ pump gas inserts.
600 ft elevation 20f
480 main
40 pilot
1.25 on fuel screw

GP black 185-330 w/ 10-68
66/44 .46 helix w/ red/pink 140-260.

on a 144" x 2.25" w/ 20 45 gearing.
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Old 01-12-2009, 08:20 AM   #33 (permalink)
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Current Sled(s): 06 800CFI IQr
Previous Sled(s): 05 600 IQr, 05 700BB IQr, 700ProX
Location: 14589
13-14 Mileage: 1500
12-13 Mileage: 300
11-12 Mileage: 1000
10-11 Mileage: 1900
Riding Since: 1980
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Damn, I started this thread a year ago because I was going to pull my hair out trying to jet my 600.

Here's what I ended up with.

04 600VES, 440 pipe mod, stock air box

35 Pilot
1.25 fuel screw
J8-9DGN6-57-3 needle (I think this was the single biggest issue I was having)
410 MJ

10-60s
EPI yellow primary
Red-black secondary

Engagement at 4400.

We tried running an EPI red with 10-58s it just didn't work as well as the current setup.

The top end is a little rich, but, since this is the Wife's sled I'll err on the slightly fat side.

------------------------------------------------------------------------

03 700 VES cut and modified SLP single pipe and can, kick ass filters

Stock Pro X jetting except MJ per SLP's jetting chart.
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Old 01-14-2009, 07:30 PM   #34 (permalink)
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Current Sled(s): 09 IQR 800 153", 10 HCR 800
Previous Sled(s): 05 IQ 440 600HO 660 800BB 797, 04F7SP
Location: New Hampshire
Favorite Riding Area: Can't get there from here
12-13 Mileage: odometers
11-12 Mileage: are for
10-11 Mileage: pussies
Riding Since: B4U
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Can we get this pinned in the top of the forum please?
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Old 01-15-2009, 05:55 PM   #35 (permalink)
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Current Sled(s): 09 IQR 800 153", 10 HCR 800
Previous Sled(s): 05 IQ 440 600HO 660 800BB 797, 04F7SP
Location: New Hampshire
Favorite Riding Area: Can't get there from here
12-13 Mileage: odometers
11-12 Mileage: are for
10-11 Mileage: pussies
Riding Since: B4U
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Hello! Mod? Please pin.....there are LOTS of jetting questions out there that could be answered by simply having this pinned at the top
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Old 01-15-2009, 08:30 PM   #36 (permalink)
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Current Sled(s): 2013 M8 Sno Pro 153"
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10-11 Mileage: 700
Age: 25
Riding Since: 1995
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My buddy has an 06 iqr with a 600 HO. He ran 370's at 10 degrees below and it ran lean on the pto side and took that piston. He had'nt been checking his plugs. We are rebuilding it and gonna run the 420's again for a while. We also are running 10-60 weights and an almond white spring in the primary.
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Old 01-17-2009, 04:32 PM   #37 (permalink)
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Current Sled(s): Snopro 720
Previous Sled(s): E'ltigre GPX SRX SX Viper RV'S XCR IQr SNO PRO 720
Location: Ontario
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2004 800 ported,case matched,HSP head cut to Doug Flannery specs,Brads aluminum intake carb adapters,Neils power pipe.
mains 400
pilot jet 40
jet needle 9DGN5-57 ( 3.5) 1/2 clip
fuel screws 2.5
air screws 1.5
needle jet P-8
cutaway 1.5
Clutching:
polaris Almond 140-330
team Black 155-222
MTX weights 73 grams (71 base with 2 grams in the tip) Im sure it will pull more weight.
max RPM 8000
Even with the 400 mains -18*celcius is still alittle rich.
This topic should be pinned Thanks Bruce
PS a big thanks to POCKETS Im sure everyone knows him. well knowledge in every aspect of sleds.
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Old 01-19-2009, 06:46 PM   #38 (permalink)
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Favorite Riding Area: Tall Pines
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310 mj
'01 needles in 3rd clip
original pilot
-10 c
elevation 200m

440 with lc heads and timing on "E"

Tiny bit of a bog from idle. Could probably go to second clip on the needle.
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Old 01-20-2009, 11:41 PM   #39 (permalink)
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hey guys, first question, my sled was manufactured in october of 05 it has the factory red and black plastic that hasnt been changed or altered, also a couple other 06 features, so is my sled technically a 2005 model or a 2006?
anyways i am trail converted with 260 MJ's and at 1,580 ft. i was told by the previous owner that he only rode it between -10 and -25 and it never missed a beat.
is this safe or should i rejet?
i dont want to blow my engine
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Old 01-21-2009, 04:23 PM   #40 (permalink)
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Quote:
hey guys, first question, my sled was manufactured in october of 05 it has the factory red and black plastic that hasnt been changed or altered, also a couple other 06 features, so is my sled technically a 2005 model or a 2006?
anyways i am trail converted with 260 MJ's and at 1,580 ft. i was told by the previous owner that he only rode it between -10 and -25 and it never missed a beat.
is this safe or should i rejet?
i dont want to blow my engine[/b]
Your sled is an '06, they were all made in October 2005.

260MJ is lean for that temp and altitude on pump gas. That is more like race fuel jetting. I would start with a 310-320 and work from there. Even 310 is going to be on the lean side at -10F. 260 is a jet for about +40f, even at your altitude.

Put a 320 in it and do some short WOT plug checks. If it won't pull RPM then the 320 is too big. We are talking about -10 to -25 F right?
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