IQR 800 questions

gotthefever · Dec 25, 2009

I have been searching on here for hours and can't seem to find the answeres I am looking for. Anyway, two days ago I picked up a 05 IQR with a 800 big block in it. The guy never set it up so I am trying to do so. I am at 0-3,000ft. I would also like to know the setup for 9000+.

Motor: 01 800 big block, v-force 3's, mild porting, CPI single pipe

I started at a 500 main and am now up to a 600 main and it still seems to lean. Does that sound right?

The secondary is the stock one from the 440. Do I need to change anything there?

In the primary, I have an almond/red stripe spring and 64gram weights. I am only turning 7200 rpm.

I am currently running the stock gearing(19/45) but found I should be at 20/45 or 20/43. Right now it has the stock 121 track but will have a 144 in a couple weeks.

Any help would be GREATLY appreciated.

theultrarider · Dec 25, 2009

We ride 0-3000 mostly here in Alaska. I run 470 mains in most of our 800's with slp singles. I realize you have a different pipe but I did have a psi pipe on one as well and ran 470's in that one too. The stock 440 secondary setup in a big no go. Since you are going to the longer track, I would run a 58.40.46 helix and a black/red spring. I just set up a 700ves motor in an iqr like that for clutching and it rips.

HYFLYR · Dec 25, 2009

64 grams are way too much weight for a non ves motor and a single pipe, especially running 600 mains. You can read a lean condition on egt's with too rich of a mixture by burning gasses through the pipe. I would say you need to be down in the 440 to 480 max even in cold temps. Try some 60 or 62 weights and 460's and you should have better results and may even need to go leaner and lighter.

gotthefever · Dec 25, 2009

Is the almond/red strip spring right in the primary?

poorider · Dec 25, 2009

hey, I sent you a p.m. but just wanted to elaborate on it. Stock jetting for that motor was 310/330 at 6000-8000k. You are clearly running way rich over stock jetting. It wasn't until exhaust valves were introduced that jetting needed to be increased so much.
I was mistaken, stock spring was almond/red. You do not know the motor or the amount of maintenance it has had, so before trying to fine tune it, replace the spring with a new one, which you should do after every season or 1500 miles.
64's are too big for that motor. Stock was 10 60's I believe and I played around with a lot of weights only to go back to the 10 60's.
If I were you I would personally run a button secondary with the r8 helix. It was what worked phenomanally in the rmk 800 of that era and still blows the socks off of a lot of new sleds today with my '01 800/iqr chassis combo.

Ten-Zing · Dec 25, 2009

If your going that big on jetting and are still lean then you should check your needles. Check what they are and the position. They are probably too big and too low. This will limit fuel flow and increasing main jet size won't affect anything.

gotthefever · Dec 26, 2009

Thanks everyone! I have a good place to start now. Really Appreciate it!

gotthefever · Dec 29, 2009

Looks like I have it pretty dialed in for here in MN. Thanks!! Does anyone have any suggestions on setup for 9,000+?

Old_Focker · Dec 29, 2009

you are not lean...you are experiences pipe temp fromt he excessive amount of gas that is going through the motor. We have built many 800s and live in Minnesota. We run around 380's here and 280's in the mountains on 800s with twin pipes...you are way rich...look at your plugs as well..I run egt's as well, bit it always important to check your plugs...you want a light tan color not black as you probably have right now....also you should be able to run the red black with almound and around 62 grams here. Check your gearing and make sure the sled is shifting out. Mark the inside of your primary clutch with a black magic marker and be sure the belt is traveling all the way up the sheive

good luck...that sled should be a ton of fun for you.

gotthefever · Jan 3, 2010

I am still not running enough rpm's with the 60 weights. I took off the secondary and it says, 56-40-F and 54-42-F. Is this to steep for this motor? Should I order up the 58.40.46?

farmervanny · Jan 13, 2010

I have a very similar set up on the iqr I just put together(800 non ves, twin pipes, 146 track, 20-45 gearing) I just got it jetted right with twin pipes. I am down in the 320 range at 10,000 feet needle with half shim in the second clip down, could still probably drop some but it runs crisp now and I don't want to risk it.

I am still working out some clutching. I am running 58 gram weights with an almond spring and I am turning right about 7900.

I am still not quite sure what i want for a helix.... Did you ever switch yours? Right now I am running a 64.46 something or other, but I think the motor can pull a bit more. Does anyone have any other sugestions for a tss-98 secondary?

mountainmod2 · Jan 13, 2010

primary for 8k-10k 800nonves single pipe
dark blue with white stripe and 58g weights

secondary for 151 and stock gears
team secondary with 58-40-46

this will dislocate elbows

gotthefever · Jan 14, 2010

farmervanny said:
I have a very similar set up on the iqr I just put together(800 non ves, twin pipes, 146 track, 20-45 gearing) I just got it jetted right with twin pipes. I am down in the 320 range at 10,000 feet needle with half shim in the second clip down, could still probably drop some but it runs crisp now and I don't want to risk it.

I am still working out some clutching. I am running 58 gram weights with an almond spring and I am turning right about 7900.

I am still not quite sure what i want for a helix.... Did you ever switch yours? Right now I am running a 64.46 something or other, but I think the motor can pull a bit more. Does anyone have any other sugestions for a tss-98 secondary?

I am an 800 non ves, 144 with 21-45 gearing. With the single pipe at sea level I am running 500 mains and it pulls hard! I just can't get my engagement up above 4300 rpm, or should it be higher?

I have 60 gram weights with an almond/red spring. I have the Black/red spring in the secondary and using a 68.44.46 helix. I have played with other helix's and found this one to work well.

theultrarider · Jan 14, 2010

gotthefever said:
I am an 800 non ves, 144 with 21-45 gearing. With the single pipe at sea level I am running 500 mains and it pulls hard! I just can't get my engagement up above 4300 rpm, or should it be higher?

I have 60 gram weights with an almond/red spring. I have the Black/red spring in the secondary and using a 68.44.46 helix. I have played with other helix's and found this one to work well.

Sounds like you have the right clutching in there now and the jetting is about right as well. Still sounds alittle fat to me. 4300 rpm engagement on that is plenty high. Stock is about 3800 and at 4000 they pull hard. I run mine about 4200 also and have no need to go higher than that. It will pull your arms off as it is. You are still running the 121 under right? If so and still running it in Mn, you might try gearing it up alittle higher than were you are. Something closer to about a 1:85 to 2:00. That is where I have my boys prox setup as well as an iqr with a 700ves. They run sweet with that kind of gearing. It will give you a little more pull from mid on up and give you a few more mph on the top.

gotthefever · Jan 15, 2010

theultrarider said:
Sounds like you have the right clutching in there now and the jetting is about right as well. Still sounds alittle fat to me. 4300 rpm engagement on that is plenty high. Stock is about 3800 and at 4000 they pull hard. I run mine about 4200 also and have no need to go higher than that. It will pull your arms off as it is. You are still running the 121 under right? If so and still running it in Mn, you might try gearing it up alittle higher than were you are. Something closer to about a 1:85 to 2:00. That is where I have my boys prox setup as well as an iqr with a 700ves. They run sweet with that kind of gearing. It will give you a little more pull from mid on up and give you a few more mph on the top.

I see you are from Alaska and you ride around the same elevation as I do. Do you ever venture up around 9,000+? If so, what are you running for jetting/clutching?

theultrarider · Jan 15, 2010

gotthefever said:
I see you are from Alaska and you ride around the same elevation as I do. Do you ever venture up around 9,000+? If so, what are you running for jetting/clutching?

Nope. I live at about 30'. I can see the ocean lol. We ride from here, up to about 3-4000' on an average day. From time to time, we hit 5-6000'. There are a couple places I go in the spring that start to push 7 but that is it. I have been here since '83, but grew up in Blaine. So I know your neck of the woods well too!

firecat99 · Jan 15, 2010

Iam a flat lander also, and running 450 mains with almond/red with spring, and 62 gram weights, i leave at about 4200rpm and top out at about 8200rpm gone through three tanks without a hickup, slp single and mbrp can, i know the guy i bought my sled off of just advanced the timing to D from G to ride at 6000+ and played with the weight a little

theultrarider · Jan 15, 2010

I just reread your post and see that you have put your 144 under there. Leave the gearing where you are at. That should work well with that track. I can tell you that the 64/44 will work good where you are, but you will never pull that much helix up at elevation in the deep. You will want some more like 58/38 to get it to back shift well @ 9000'. Even at 2-4000' we are running 58/40's.

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