shortie
|
| posted on 5/9/05 at 10:06 AM |
|
|
Pulses per cycle
Can anyone explain to me what pulses per cycle is all about?
I had an issue this weekend whereby I changed my rectifier from the fireblade one to a CB250N superdream one and when I plugged my Digidash back in it
showed the revs as double what they should be.
I have re-configured the dash for 4 pulses per cycle which now works perfectly but for a fireblade it should be 2.
So what I am really asking is would changing a rectifier change the pulses per cycle but also I really would like someone to explain what the pulses
per cycle actually means!
ta,
Rich.
|
|
|
|
|
Gav
|
| posted on 5/9/05 at 03:45 PM |
|
|
presumably its the amount of pulses generated per revolution?
|
|
|
shortie
|
| posted on 5/9/05 at 03:57 PM |
|
|
yeah I guess so but why for instance is a bike engine 2 pulses per cycle and a car is 4? and what exactly is a pulse??
And also would changing the rectifier change the pulses??
Rich.
|
|
|
Gav
|
| posted on 6/9/05 at 11:08 AM |
|
|
This may help:
http://www.allaboutcircuits.com/vol_3/chpt_3/4.html
Quite interesting reading.
|
|
|
Howlor
|
| posted on 8/9/05 at 09:24 AM |
|
|
Thi smay be utter codswallop but on a car engine the trigger comes generally from the coil so a pulse occurs 4 times per 2 revolutions of the engine
hence I would say that the pulses per cycle should be set at 2. On say the blade engine either this is a lost spark system or possibly the pulse is
generated from one of the 2 coils supplying 2 of the four cylinders. If it is a lost spark system it would pulse 8 times for 2 revolutions hence the
pulses per cycle should be 4. As I say I may be barking u completely the wrong tree!
|
|
|
shortie
|
| posted on 8/9/05 at 10:43 AM |
|
|
Howler,
I think you are barking up exactly the right tree actually!! I too have come to this conclusion and MAC1 also told me to set it to 4 and it all works
fine now!
Thanks for a simple explanation or how it differs from the car engine, at least I now understand why a bit more than I did!!
Rich.
|
|
|
