I figured I would post my results into what I have found for peeps doing Big bore swaps etc. All can am injectors are short bodied siemens deka based with a Euro style long nozzle (BMW commonly uses this style as well). Finding info on them has been a pita but I did find a little I also have 2 sets going for cleaning and flow charting, and I found a US distributor to call so look for updates. Also as a cautionary note, Outlander, Renegade and Max models can use different injectors for same cc motors, so this isn't a be all end all of where to find just a general guide of what to expect.
So by Can Am part number/color band hear goes.
420874402- Bright Blue 360 degree band on bottom of injector next to tip (only one color marked this way)= used in early years across the board 06-08 500-650-800 twin and 400 single till 2014 and DS450 till 2015.
Flow Rate @ 51psi = ?
420874838- Light Pink 270 degree Band under electrical connector (rest discussed are this style of band)= used in 09-14 500cc twin and 09-14 650 twin, siemens part# 110232 Flow rate @ 51psi = ?
420874830- Green 270 band= used in all 09-12 800R motors, all 1000cc motors to 2015, and all 1000R motors thru 2017 and was phased out of atv's before 2018 model year, but is still used in N/A 1000R Maverick, also carries a siemens part# 108999 Flow rate @ 51psi = 357cc or 34lb hrs @ 43.5 psi it's rated for 31 lb.hr. or 330cc/min This injector is around 95% Duty cycle @ 63HP per injector, and can comfortably manage a 55HP cylinder at 80% (or nominal) duty cycle.
420974839- Red 270 Band= started us in 2013 and up 800r motors, and I believe is still currently used in the Defender HD5 series motors and other 800R series motors in SXS's but ended service in ATV's in 2016. siemens part#110500 Flow Rate @ 50psi = ?
420874840- White 270 Band= started use in 2015 500/650cc twins 2016 570 twin and 2016 HD8 twin
Flow Rate @ 51psi = ?
4208744841- Light Yellow 270 Band= 450cc single 2015 and up, 850cc twin, HD10 series twin (which is the same motor in Mav Trail 1000)
Flow Rate @ 51psi = ?
420874842- Light Blue 270 Band= all 1000 and 1000R atv motors since start of 2018
Flow Rate @ 51psi = ?
420274250- Dark Blue 270 Band= 2015 1000cc twin Mav turbo
Flow Rate @ 51psi = ?
420274255- Brown 270 Band= 2017 1000cc twin Mav turbo
Flow Rate @ 51psi = ?
So you can draw some parallels between the part#'s here
based on Hp range that the factory is using them for
the 402 feeds in the 20-36 hp range on twins and as high as 45 hp on DS single
the 838 and the 840 feed cylinders in the 20-31 hp range
the 839 and the 841 are feeding cylinders in the 35-39 hp range
the 830 and the 842 are feeding cylinders in the 35-50+ hp range
the 250 is feeding a 60+ hp cylinder and the 255 is feeding a 65+ hp cylinder
Can the injectors above feed more power then the factory intended, yes, but you can only push the duty cycle up so far, before external factors cause serious issues. Issues like overheating the coils from high duty cycle, lean out due to air density changes from temp or elevation, etc.
Which begs some questions to be asked if they are so similar why change them, I think some if it has to do with spray patterns, some with emissions, some with duty cycle, some with Ohm rating which affects the reaction time of the solenoid, idle quality and drive-ability, etc.
Why go thru all the trouble, tuning with mods that's why. I recently bumped my 650 to an 860 kit, cams, mav heads, pipe, TB etc. I popped in the 830's and chugged black smoke at an idle like a friggin cummins lol, I popped the 838's in and at 170% extra (on the good not clogged injector, i even swapped it the shitty injector to lower demand cylinder trying to see if I could reduce the percentages) at 5-10% throttle on the PCV I am out of adjustability, at Wot I'm at 55%+ and in both cases running really leaner than I'd like, yes I have the dual wide band kit as well with dual maps, which with as different as the 2 cylinders requirements are its amazing.
Lesson learned, always clean/service your injectors for the 20-25 bucks per, even if you just pulled them and they were fine. I had 1 bad injector (838 partial spray pattern) only sat for 2 weeks out of the bike which made ONE cylinder even more of a pig, same story with 830s (I got the 830s used for $25 per) ended up sticking in use, hence the coal, so I said screw it and found a set of 839's for under 70 each new. They will be in tomorrow, the rest are headed to an injector clinic in NY, I hope this gets me to a happy medium in the tune maps. I expected to be adding/subracting fuel here and there but it ended up getting out of bounds real fast compounded by dirty/old/used injectors.
