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Old 09-13-2011, 10:42 AM   #28
tmex
Beastly Adventurer
 
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Joined: Apr 2006
Location: NorCal
Oddometer: 2,039
Quote:
Originally Posted by geometrician View Post
Hmm... No, KTM & dealers won't be re-mapping anyone's bikes... there are EPA issues (in the US) which trumps any of that nonsense. It is a federal offense to modify any of the intake or exhaust systems, and while we & the aftermarket that supply us ignore that every day, importers & dealerships can't. That said plenty of guys never touch their EFI & are quite happy with their mounts

The 990 FI mapping has been dealt with for over 5 years; now by buying a single cable and using the free software & maps you can set your bike up to run however you want, with lots of maps to match your mods & needs.

No "literal" denial at OC, we discuss & fix what we need to and ride... you don't have the corner on "freely admitting" nor do we stomp or flame Inmates who ask questions .

3 near-flaming posts in this thread against 990s seems you are doing the stomping

jeez, guys, let's ride
No flaming intended. Just responding to OP. You are correct, many 990's seem to run just fine. Others defy any remedy to cure the FI (or apparent FI) issues. My best friend worked on his with all the maps and diagnostics available on this site at the time to no avail as well as changing out all the sensors etc. He even swapped ECU's with owners of bikes that ran just fine, and it made no difference. He took the bike to Scuderia West (well-known dealer in SF) and told them he did not want the bike back until it was running "acceptably". While Scuderia readily acknowledged that the bike was running very poorly, they were unable to correct it all. KTM simply does not provide dealers with diagnostic tools with the requisite level of detail. Scuderia finally gave it back to him in the same state it arrived, and he converted to carbs. The bike runs great now. Of the 6 990's I have sampled, 3 were great, 2 were horrible, and one was marginal with respect to the apparent FI performance. I honestly do not know what the issue is. Since some bikes run so well, I am inclined to believe it is the accumulation of tolerances somewhere in the system, and may not have anything to do with the FI at all.
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