westf27
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| posted on 23/12/07 at 04:13 PM |
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Ignition setting for bike carbs on pinto
With the weber 40's i was running the ignition with aldon distributor set at 12 degrees advance @1000rpm.with these bike carbs do i need to
alter it.Have noticed a fair bit of petrol vapour blown out of the carbs (without filters) when you blip the throttle.I was thinking this is to do
with valve overlap ? anything I should do or not worry
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Surrey Dave
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| posted on 23/12/07 at 04:26 PM |
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Happy Christmas Steve!!
My bike carbs pump out fuel vapor , thet call it stand off, but I have no air filters or airbox.
If you have an airbox or filter it should catch the vapor and let it go back in!
Could be caused by the shortness of the carbs and inlet tract .they tend to be under the ideal length when on a car engine.
Still bloody good though
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westf27
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| posted on 23/12/07 at 05:07 PM |
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Ho Ho Ho to you Dave
Thanks for that,I made a four inch long manifold and fitted it to my weber manifold making a total of about nine inches.Read something about inlet
manifold length and torque,yet to drive it so that remains unknown.
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