Author Topic: Electronic tacho  (Read 1095 times)

Online bsa-bill

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Re: Electronic tacho
« Reply #15 on: 06.09. 2017 22:05 »
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will an HT not normally just fire once per 2 cycles? Regardless of number of cylinders?

no it fires every time both piston come up to the top ( one on compression the other on exhaust stroke), believe it's called the wasted spark system
All the best - Bill
1961 Flash - stock, reliable, steady, fantastic for shopping
1959 Rocket Gold Flash - blinged and tarted up  would have seizure if taken to  Tesco

Offline Slippery Sam

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Re: Electronic tacho
« Reply #16 on: 08.09. 2017 19:02 »

Other than Bills double spark - will an HT not normally just fire once per 2 cycles? Regardless of number of cylinders?

LOL, Bill your double spark set up was already excepted from that statement.
I should have qualified by saying with a mag or something.

Cheers Raymond
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Online bsa-bill

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Re: Electronic tacho
« Reply #17 on: 09.09. 2017 09:28 »
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I should have qualified by saying with a mag or something.

Yes in the case of a maggie on a four stroke,.

Two strokes and impulse do dahs could be different, but then we're starting to split hairs or cycles *doubt*

All the best - Bill
1961 Flash - stock, reliable, steady, fantastic for shopping
1959 Rocket Gold Flash - blinged and tarted up  would have seizure if taken to  Tesco