2020 Outlander 450
Im running the Gates G Force belt now, but this problem began prior to putting that belt on and has continued. it was the same dimensionally I checked it prior to swapping. Ill check compression tonight as well. I really dont think the tuner is what is doing it seems like they would have different symptoms if both were bad or atleast not identical, especially since all it does is alter the parameters of the stock map. Going to try it anyway though. I had a thought earlier that I had forgotten about in detail and seems promising. I had a 2006 GSXR 1000 I bought in 2015 with only 3500 miles so it sat around alot. 2 weeks after I bought it I lost all top end power over 8 or 9k rpms or something like that, so I pulled the injectors and cleaned them out and it ran flawlessly the rest of the time I had it after that. It didnt throw a code and it had the exact same sypmtoms I am having now. Im hoping that will be the fix because after that Im afraid it is ECU related or it somehow jumped time.does the engine sound fine other then bogging when on the throttle? If the ecu figures something wrong it will retard your timing and not allow full throttle ..not adjust your fuel from my understanding ..that being said I had similar symptoms on my bike but being I have two cylinders it was a little different but my main issue ended up being a bad ingintion coil wich from time time while riding especially under heavy load would miss fire in cylinder 2...wich the only way to test it was to swap it .... Also it didn't through code on dash from the misfire
So of you do what your saying check out your mapt and turn the controller off you'll be back to stock ecu settings correct?
If it runs fine back to normal that means there's something wrong with the tuner it self or the tune.. if no change in performance..
Check compression that will tell you about your valves or possible another issue in top end with out tearing it down...
If compression checks out
Valves good .
Now you run a after market belt it may be possible it'd a generic size not actually made to specifications for canam ..I personally have tried after markets but no success I recommend staying with the can am belts as I find them the best
if you wanted a better belt I went with the maverick belt it's higher temp( because of snorkels) rating and better quality then stock belt .(280-364) is the belt number..
If not before you tare the injectors out .. have you swamped this bike? Did get dirt in the tank.. one way to clog injectors would be to swamp it putting debree down the exhaust to your jugs this letting in crud.. it's hard to do that from the fuel tank since there is a fuel filter.. wich if there was junk in the tank could clog the filter..
I'm tryin lol keep posting your findings we'll get the gremlin..
I drained the tank and it looked clean as can be. Ive never swamped it aside from the CVT housing which is now snorkeled, but I guess even the smallest debris can have a drastic effect on the one and only injector. Ill report back with findings once I get home. I appreciate the thought you're putting into this.