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Join Date: Aug 2009
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Lean condition?

Hi everybody,i bougth R11S a month ago with 19k miles on it.yesterday i changed the spark plugs and they seemed a bit white.is this a sign of runnin lean.Bike has Ztechnik exhaust with no cat,but has O2 sensor.should i be worried?Do i have to put chip(BBp) or k12 fuel pressure regulator?BTW the exhaust pipes are Blue.
thanks Ivo

Old 09-06-2009, 09:17 AM
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Would help if you could show us the plugs - "bit white" can mean a lot of things.

- Mark
Old 09-06-2009, 09:31 AM
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I will try to get photos of the plugs tonight and I will post them

Ivo
Old 09-06-2009, 10:04 AM
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the bike is characteristically lean for environmental reasons, when you open up the exhaust and intake it gets even worse. there are a lot of things you can do for the FI, just pick one and be happy.
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Old 09-06-2009, 03:54 PM
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Thank you Shreddr,Idon't know much about boxer engine.is the chip enough by itself?
Old 09-06-2009, 05:43 PM
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I have a '99 R1100S w/Z-Teknic Exhaust plus K&N Air Filter (no chip):

Here's what my Spark Plugs look like (Autolite 3923s) at various times and miles:




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Old 09-06-2009, 06:40 PM
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Quote:
Originally Posted by karkaliev View Post
Thank you Shreddr,Idon't know much about boxer engine.is the chip enough by itself?
i don't know that much about the different chips, see what the manufacturer is claiming, sounds like you need added fueling.

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Old 09-06-2009, 06:46 PM
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