DJ kit set up

Did you change spark plugs this season?

Jreng87 said:

Nope. Hit all rpms before clutching.talked to a guy around me with the kit and he is running 12.3 grams in clicker 3. I'm gonna start at 12.9 tomorrow and experiment.

Click to expand...

What year and model sled, When setup correctly your sled should run consistent rpm in both conditions, I use dj's recomendations and my sled may change 100-150 in different conditions but is very good imo my sled is a 15 t-3 and always runs good, I have herd of the new plugs causing issues (no issues with mine ) I need to get a old style set just in case

I've had great luck with DJ's kits

Flyweight grams is a representation of engine torque.

100% @ 0000' elevation [160hp]
89% @ 3280' elevation [142hp]
78% @ 6560' elevation [124hp]
60% @ 9850' elevation [96hp]
58% @ 11400' elevation [93hp]

At 7000 feet, engine has about 14hp more than at 9000 feet. When flyweight provides correct engine speed at 9000~10000 feet, then go to less elevation than 8000 the engine will have enough power to overcome the flyweight. The engine starts to overrev because engine torque is continuously increasing as you go lower.
Opposite of that - sled goes higher than 10500 with current flyweight grams and engine speed is low, then reduce flyweight.

Jreng87 writes)Pulls 7900rpms on the trail
7500, maybe touch 7600 once in the pow
Normal? Or should I adjust so its hitting 7900 in the pow, but then it will likely be over on the trail

Joe) Setting sheet says 13.9 grams in clicker #3 @ 8500~(9500')~10500'

What you get is a shape like this...
8500~(9500 middle of riding range)~10500' (13.9 grams)
9500~(10500 middle of riding range)~11500' (12.9 grams)
10500~(11500 middle of riding range)~12500' (12.3g or empty pin 11.5g)

For every 1000 foot increase reduce 0.9 grams

If you are riding at 11~12000 then 12.9 grams in clicker 3 for 180~230 lbs rider.
If heavier than 230 lbs riding weight than 12.3 grams

Quick clutch flyweight verification
Changing clicker is the way to prove the flyweight is too heavy. You are in clicker #3 and have 7600~7700 rpms then go straight to clicker 5 in the snow and it should tach 8000~8100

IF still 150~200 rpms low?, THEN clicker change should have changed engine speed under full load in snow. If a change like that is made, THEN should see estimated 400 rpms speed increase.
If there is little to no engine speed change at full throttle in a hard pull - then there is something wrong with engine management (fuel delivery, spark system, voltage reg) or a hard part in the clutches has a defect in it.

For 11~12000 feet, please reduce 1 full gram from your current flyweight that's set for 8500~10500.

Joey

Do you have the original white swivel washer inside the secondary clutch? OR Did you ever put one of those bikeman slick bearings in the helix to replace the white swivel washer?

if the answer is yes you put a bmp slick bearing in the helix - TAKE IT OUT ! ! ! !

There is nothing wrong with the slick bearing, it has its intended purpose.
My clutch kits are design for the original white BRP swivel washer and not for this slick bearing.

That slick bearing changes the coefficient of friction so that whatever current calibration you have in the secondary clutch will act As-If the helix is 4~5 degrees bigger through the whole shift range.
The engine speed will go in the toilet for something thats calibrated NOT to use it and then apply it.

OH...and another thing about that slick bearing...they have a "time limit" on them and eventually seize.

I just had a chat with a guy who had a 7300 rpm problem out in Lethbridge. (Thanks Wayne)

Said he changed the electric component that runs his rave valve and now she whacks 8100 rpms. He needs to add more weight now.

I wish I would have taken a picture of one that was melted on a 2012 I seen in the BRP shop when my crankshaft was getting warrantied - totally forgot to take a picture of it but i was melted good.

Joey

Pin

Dynamo^Joe said:

I just had a chat with a guy who had a 7300 rpm problem out in Lethbridge. (Thanks Wayne)

Said he changed the electric component that runs his rave valve and now she whacks 8100 rpms. He needs to add more weight now.

I wish I would have taken a picture of one that was melted on a 2012 I seen in the BRP shop when my crankshaft was getting warrantied - totally forgot to take a picture of it but i was melted good.

Joey

Click to expand...

What do the stock pins weigh empty 2015 800

http://www.ibackshift.com/article/flyweight-148.asp#brp

There are two pins. I've weighed a lot of them at the weights below. BRP literature says 12.4 and 10.8, but i've weighed a lot of them over the years as slight less.
12.1g (4000'~8000')
&
10.7g (8000'~12000')

Dynamo^Joe said:

http://www.ibackshift.com/article/flyweight-148.asp#brp

There are two pins. I've weighed a lot of them at the weights below. BRP literature says 12.4 and 10.8, but i've weighed a lot of them over the years as slight less.
12.1g (4000'~8000')
&
10.7g (8000'~12000')

Click to expand...

Ok ya mine are the 12g ones i have weighed them before just couldn't remember I was sure it was twelve. Quick question is it better to put lighter pins in to run a lower clicker number or is it better to use heavier pins and run a higher clicker number