2009 KTM 990 Adventure ECU remap
This KTM 990 Adventure (with open cans) was bought in by a customer from Cambridge; he was complaining about the usual problems – the engine surging at slow speed in traffic, and generally a snatchy, unforgiving feel.
The digital throttle is gone, and the carb-style analog feel is in its place...
He wasn’t looking for any more performance out of the engine (which, to be fair is common for most of the 990 Adventures we remap, as most owners are happy with the overall performance) but just wanted it sorted out as he wasn’t happy with it at all. He’s got other bikes, and his last words to us as he left were “If you can’t fix it I’m off down the BMW shop to get a GS…!”
We rode it, then downloaded the stock map. Fuelling adjustments were followed with work on the secondary butterfly valves, as when and how much these open is critical to how the engine feels. The ignition was next, and is an area we spend quite a lot of time because fine-tuning here nets big results for throttle control.
The bike is now rideable at slow speeds, high gear small throttle opening and has the Holy Grail (that the old carb’d 950 had) of an ‘analog’ rather than ‘digital’ feeling throttle. You can barrel up to a corner and it won’t scare you – and it did before.
That’s one less GS sale, anyway…
Bike File
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2010 Triumph Sprint ECU Reprogram
The issues with this bike mainly concern power and power delivery off the bottom especially two-up. It’s been back to the dealer and had the latest factory tune, but the owner wants a little more. First job? Isolate the Lambda sensor and cap off the emissions unit. The bike was then put on the Dyno and we reprogrammed the stock ECU; fuelling at the bottom end has been richened up, taking away the ‘hunting’ snatchiness. Fuelling all the way through the rev range has been optimized and the ignition curve trimmed.
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2009 Yamaha R1 Road to Race
To upgrade to race spec we’ve fitted an Öhlins rear shock and MCT have modded the front forks. The engine’s been out and we’ve adjusted the cam timing, ported and skimmed the cylinder head and we’re fitting a set of BSD Performance adjustable bellmouths. It’s also having a YEC race loom and ECU, plus quickshifter.
