Re: CCP,gas mileage and vibration

[Bob Hadden <kbhadden@xxxxxxxxxxx>]

Bob,  I keep the brass screws closed except to open one up enough to 
balance the idle.  I think the left one is open about a quarter turn at 
the moment.  Air running through the bypass screws is not metered.  I 
figure, how can the computer measure proper mixture if there is air not 
being metered?  Just measured the tps at 0.307 volts.

Bob Hadden '98RS, '62R27

On Jun 10, 2004, at 5:33 PM, Minor, Bob wrote:

> Bob,
> My bike is set up like yours except that I have never readjusted the 
> TPS since I did the zero=zero a long time ago.  Are you able to set 
> the idle screws close to the 1.5 turns out after reducing the TPS idle 
> voltage?  Also, if it's not too much trouble, can you check your TPS 
> voltage?
>
> Thanks
>
> Bob Minor '96RS '97 F650ST
>
> -----Original Message-----
> From: owner-oilheads@xxxxxxxxx [mailto:owner-oilheads@xxxxxxxxx]On
> Behalf Of Bob Hadden
> Sent: Thursday, June 10, 2004 10:44 AM
> To: oilheads@xxxxxxxxx
> Subject: Re: CCP,gas mileage and vibration
>
>
> Peter,  What you are likely seeing is that the motor is surging a bit
> when the ccp is in place.  I have the ccp out and am getting 40+ mpg
> with very smooth running.  Actually, I have never been on a smoother
> oil head, and anyone who has ridden my bike agrees with that.
>
> What I have done is use Autolite plugs, remove ccp, and do proper tune
> up.  This means be picky about the valve adjustment, and do a proper
> zero = zero as detailed on the ibmwr web site.  All that should get you
> running smoothly without surge.  If your mileage is not good, you are
> running too rich.  Think of the tps set point (normally 0.37 volts) as
> the base setting to determine how much fuel you get with a given
> throttle opening (read 'amount of air').  If you are running rich, you
> need to lower this setting.  Mine is much lower now, but I don't
> remember the number.  So you bring the value down until you get both
> good performance and good plug readings.
>
> One easy check on the mixture over the long term is to look at your
> exhaust pipe outlet.  I get almost no soot when running my finger over
> the inside of the pipe.  Most other oil heads are all black and loaded
> with soot.
>
> Let us know how you progress with this.
>
> Bob Hadden '98RS, '62R27

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End of oilheads-digest V1 #214
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