Not idling with fix kit..

[greasemonkey3406]

We installed the fix kit in my friends 09 Assault. Everything worked great when we took it out for the first couple runs. Now after it is running for a bit, it idles down to 1000 rpm and stays around there. Also, when riding on the trail, it only revs to 8050 and when loaded down in the powder, it only goes to about 7400. Sled seems snappy but just an rpm issue on top end and idle.
Elevation is around 1800 ft, april flash, pc5 with dynojet 157 hp tune, silencer, and running 66 44 46 helix.
Any suggestions?

 

[Jeff95]

I have a 09 Dragon 800 with the following mods: Fix kit, SLP High Comp Head, SLP single & PC5. I had a hard time getting to run good with the 2010 update flash. I had my dealer load a 08 flash and it rips! Now I did have to subtract 2% fuel at idle because I was fauling plugs. I also added a little in the mid range.
Talk to the guys at PMS.

Jeff

 

[Ex-Flit]

I would check your tps mine was off a little after the last time polaris did there up dates it would not idle or go into reverse. this summer, when I installed the fix kit, original head and flash I reset the base line and adjusted the tps, my sled idles spot on now and on my last trip pulls 8250 all day.

 

[locknload]

I agree with EX-FLIT, check your tps, and while your at it clean your throttle bodys. Mine also would not idle after warm up, checked base tps was off by a couple of tenths but the throttle bodys and plates were really dirty. I used a rag soaked with carb cleaner and cleaned them out. It worked perfect after that not sure if it was the tps adjustment or t-body cleaning but wont argue with success.

 

[sled_guy]

TPS and idle adjust... had the exact issue on an '08 I did.

sled_guy

 

[milehighassassin]

Not sure how many times it can be said but check the TPS. Pretty much every idling issue is a TPS issue.

 

[greasemonkey3406]

Could the tps cause the max rpm to be too low as well?

 

[greasemonkey3406]

Anyone remember where to get the little schematic to make the tool to adjust the tps and the procedure to do it? The one with the 9 volt battery if i remember.

 

[chunkysoup]

http://www.snowestonline.com/forum/showthread.php?t=67427

 

[milehighassassin]

Could the tps cause the max rpm to be too low as well?

Possible but I would expect that to be in the clutching setup.

 

[locknload]

Anyone remember where to get the little schematic to make the tool to adjust the tps and the procedure to do it? The one with the 9 volt battery if i remember.

SLP sells a power up cable that you plug into your sled and connect other end to a car battery, powers everything up, great for checking and adjusting TPS. I think its like $20. works geat.

 

[greasemonkey3406]

So how does the sensor get its 5 volts when everything is all hooked up and running? The system is 12 volts and Im assuming that the voltage regulator keeps the voltage at this level. So what supplies the 5 volts to the sensor in a running sled?

 

[milehighassassin]

Capacitor changes the voltage.


Sent from my iPhone using Tapatalk

 

[IQRIDR]

I agree with most everyone else about the idle issue...as long as you made sure to hone it to .006 min clearance.

But, your helix choice leaves much to be desired. What elevation are you at? With what you have done to your sled, these are going to be a lot better choice for max RPM delivery and consistent backshift-

0-3000 ft...60/42 helix, black/purple secondary spring, 2 delrin washers (1 on each side of spring)

3-6k elevation...60/40, black/purple or black/white, delrins

Adjust primary weight as necessary, try an slp blue/pink primary or something in that 140/340 range.

 

[sled_guy]

Yes, the TPS can affect top end RPM.

Could the tps cause the max rpm to be too low as well?

sled_guy

 

[greasemonkey3406]

I agree with most everyone else about the idle issue...as long as you made sure to hone it to .006 min clearance.

But, your helix choice leaves much to be desired. What elevation are you at? With what you have done to your sled, these are going to be a lot better choice for max RPM delivery and consistent backshift-

0-3000 ft...60/42 helix, black/purple secondary spring, 2 delrin washers (1 on each side of spring)

3-6k elevation...60/40, black/purple or black/white, delrins

Adjust primary weight as necessary, try an slp blue/pink primary or something in that 140/340 range.

We didnt hone the cylinders because it was a brand new one. We didnt have a decent hone anyways and never had any good quality tools to measure the clearance with. Im going to adjust the tps and try a few clutching changes. Maybe put the stock helix back in and change the primary spring.

 

[Rick!]

I agree with most everyone else about the idle issue...as long as you made sure to hone it to .006 min clearance.

But, your helix choice leaves much to be desired. What elevation are you at? With what you have done to your sled, these are going to be a lot better choice for max RPM delivery and consistent backshift-

0-3000 ft...60/42 helix, black/purple secondary spring, 2 delrin washers (1 on each side of spring)

3-6k elevation...60/40, black/purple or black/white, delrins

Adjust primary weight as necessary, try an slp blue/pink primary or something in that 140/340 range.

X2. Once the TPS is taken care of, do the same diligence to the drive clutch - bushings, weight bushings, make sure weights haven't worn into the spider. Replace as necessary. Use the helixs above with a smalll number on the end like ".36" for powder riding.

 

[greasemonkey3406]

I just remembered something.... We installed the power commander onto the sled but we didnt have the instructions because we couldnt find them. Is there supposed to be a ground wire for the PCV? I checked the instructions on slp`s website and they dont mention anything about a ground for the 08-10 cfi 4 but there is one for the 11-12 cfi 2. Is there supposed to be a ground for this?

 

[jim9006]

For the PC5 there is no ground wire... manual can be found on the power commander web site.. Google is your friend.

 

[greasemonkey3406]

For the PC5 there is no ground wire... manual can be found on the power commander web site.. Google is your friend.

My friend just put one on a 2009 switchback 800 and it came with a ground wire that had to be installed. Wouldn't start without it. Is there a newer version of the pc5?