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Post by Ol' Greasy Dave on May 20, 2009 13:42:40 GMT
Don't know how this would affect you people overseas but I recently disconnected the pollution gear off the '94 model I recently bought.
Went for a good ride last week (about 700Ks), all types of roads ranging from expressways to peak hour city traffic.
Bike averaged just over 17km/litre economy (bit over 60mpg) & the extra power from the engine actually being able to breathe is noticeable
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Post by CD on May 20, 2009 15:36:00 GMT
I disconneted the exhaust air injection kit from my Divvie 900 (what a huge load of stuff there was). But it made zero difference to the fuel consumption. I'm not feeling even slightly guilty because it only diluted the gases to get it though emission rules. The total emissions per mile haven't changed.
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Post by Ol' Greasy Dave on May 20, 2009 15:43:35 GMT
I'm only guessing on this as I have no idea what the consumption was previously although I've never had economy as good as this in over 40 years of fooling with bikes (plenty of room under the fairing when you throw this stuff too.)
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Post by bobh on May 20, 2009 20:41:05 GMT
By the way, that's 60 miles per US gallon, i.e. about 50 per Imp gallon, which is about average for a D9 I'd say.
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Post by doggone on May 22, 2009 1:46:17 GMT
what did you use to block off valve cover holes? chek out diversion club nederland street fighter pics
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Post by CD on May 22, 2009 7:51:26 GMT
I put aluminium caps (sealed with silicone) over the air injection tubes in the cylinder heads and junked all the connecting gubbins under the fairing and capped off the airbox feed. There is no connection to the carbs.
The bike gets about 45mpg (imperial) at best, but I do cover a lot of M-way mileage. I'm sure with a pillion over A roads it would go over 50mpg.
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Post by Ol' Greasy Dave on May 22, 2009 14:43:03 GMT
I sealed them off the slack way - left the tubes running up under the fairing & plugged the rubber hoses with cut off bolts.
I'll eventually get around to taking the tubes off the engine although as it is now, the engine still looks "stock"
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Post by doggone on May 23, 2009 14:20:48 GMT
Did you notice any difference in handling with a little less weight over the front wheel?
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Post by CD on May 24, 2009 17:48:36 GMT
It's not that heavy, but the clacking from the pollution system valve gear has gone. Now its only the drone of vibrating fairing plastic. :-(
Another way might be to silicone suitable bolts into the little air stacks. Certainly a cheap option.
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Post by eliminator on Jul 6, 2009 17:15:30 GMT
Is that what that horrible noise is, the pollution gear?
Is it a noise that can be heard at idle, sort of "hunts" a bit?
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Post by CD on Jul 16, 2009 11:37:01 GMT
Mine also hunts and did the same when after the carbs were balanced. Its also slow ticking over until really warm and then its a bit fast. I learned to live with it - character I guess.
Forgot to say earlier - The pollution gear does have a carb connection. The RH carb manifold has a vacuum connecting pip that has to be plugged/capped.
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