06 900 fuelling, map, paremeters etc

[J.Jensen]

How is fuelling controlled on the 06 900?

Do all 4 injectors fire all the time? Is there seperate maps for part and full throttle etc?

If I adjust fuelling on my boondocker will all throttle settings in the adjusted range be affected?

Its very lean mid range on part throttle, will giving it more here make it rich on same rpm on WOT? The boondocker only adjusts lower injectors.

What is max recommended EGT? First warning light on the digatron is 1100, second 1200, guessing third is 1300 and very close to meltdown...

 

[speedemon]

As far as I have been told/taught, on the 06 year sleds, the bottom two injectors fire at lower RPM and then the upper two injectors fire at higher R's. This was the problem with the mapping on the 09-10 800s, there was not an overlap, but a gap between the firing of the injectors, causing a lean midrange stumble. Somebody correct me if Im wrong.

 

[2poor]

you are right on it the lowers fire all the time and as a load comes on the second set come on. At right around 6200 to 6500 is the bad spot on a 06 900.

 

[garlic bear]

firing

not positive about the 06 but the newer 4 injector system fires the lower at lower rpm then switches to uppeers at 1/4 throttle then switches back to lower at 3/4 throttle