Bog, falling on its face

Started by puddles, February 28, 2014, 06:40:56 AM

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Speeddog

Quote from: puddles on March 04, 2014, 06:44:16 AM
What should the fuel pressure be?

AFAIK, nearly all FI Ducs should be 45psi (3 bar).

I think it's a few of the SBK R models that are higher.
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puddles

So I jimmied up a timing light on the bike and took it out. Spark is present during the bucking. I understand this isn't a guarantee of STRONG spark, but I think this points to fuel. It definitely happens under heavy load (lower rpm's with a lot of throttle). The point of a monster right? Now, should I ride it with a fuel gauge jimmied up on the bars, or should I just check the pressure with it running (not riding)?

puddles

I jimmied up the fuel pressure gauge today, and the fuel pressure is constant around 46-47lbs. I guess the brain is cutting out the signal to the injectors. Off to the dealer and a scan tool. Thanks for all the help.

Blissful

Any updates??? I have the exact same issue on my 2000 M900Sie, and I've tried all the same things you have. I'm taking the bike to the dealer tomorrow, so if you found the problem I'd love to know! Thanks