Amal Carb Setting

bag-o-nails · Post by **bag-o-nails** » Tue Jul 17, 2007 11:50 am

have you fitted a replacement battery if so what type/ make have you checked the voltage regulator i bought a new one that would not hold a charge and was dead in three days

Blewbury · Post by **Blewbury** » Tue Jul 17, 2007 8:11 pm

How could the battery affect the ignition or carburation?
It's a Varta (type 012 014 008)with a capacity of 12Ah, about 10 years old and in very good condition for its age. Fully charged, at 20 Deg. C. it will sustain a 3 Watt (1/2 Amp) bulb for 20 hours before the terminal voltage starts dropping off. The charge voltage is well within the accepted limits and the electrolyte SG. "spot on". The regulator is still the original 2 bobbin Lucas and even now not more than a few Millivolts out.
Am I missing the point here somewhere?

bag-o-nails · Post by **bag-o-nails** » Wed Jul 18, 2007 1:00 am

low battery weak spark fuel not being fully burnt just thinking out loud i suppose, could be an air leak on the manifold,
cheers
Phill

lawrence · Post by **lawrence** » Wed Jul 18, 2007 8:30 pm

csr 650 twin = magneto?