Honda-SOHC

I suspect the impulse measurement signal would be different if it includes the circuit through the coils unless it's designed to work on the feed side as this would not be affected by the coil resistance - your logic to connect on the B&W side makes more sense. Do the instructions help?

The manufacturer of your unit need to employ an accurate translation for their instructions - those are gobbledygook.
My thinking is:-
If one set of points operates  two cylinders with a wasted spark you are getting four signals for one 360 deg of rotation so setting 4 on the left side of the first table (4C-8P).  If its a 4 lobe unit. or is it setting 2 FFS I'm lost already but...

Presumably  if you get the setting wrong it will read either half the true revs or double .
Either way you should get a reading assuming the power supply wiring is polarity correct and earthed.

Update:- I keep changing my mind between setting 2 & 4 either way I cant see why you do not get some sort of output givig a reading

If it works on the  LT side of  the impulses will it not be related to the number of sparks generated for one crank rotation?
Not as such affected by the HT coil side?

Welcome Phil, when you can be good to see a photo of your 650.
There is a qualifying period before you can post pics.

Not forgetting Ash! 👍👍👍

Oddjob knows how - sadly Ken is currently suspended here.

Shown as in stock at Green Spark PLug Co.   Denso Standard Spark Plugs W22ES-U


 https://www.ebay.co.uk/itm/322961230619?epid=1843025240&itmmeta=01HYZY30W77Z3K3N2B8RSF8516&hash=item4b31fd4b1b:g:JqIAAOSw-09aQrZy&itmprp=enc%3AAQAJAAAA0ND6L3buyw7TUetkl6KfDSOS1ExqIGlI9c%2BrOKXaW3rnTQqM%2BxhABivnly4s%2FttLyKWrOf1dfYNO7YPB4P63tIawHUBQBnOQxXa0NYqyQCmrqo%2BxFmdXL7ojgGxLBeVjM7TMiYMmljV01KZaQBtwn2OdFWr6ypdBXNsjI6Wa8GLxofLtKFLrncuXG46WCM8evAevE4%2F6voNiceO0UB9O8CwS%2BGiYaxWTcOHvdVDd%2FQp55f%2FiNt8y636qyOkayRbSjb%2F656vghNvXB%2Bmz%2FAz0LbU%3D%7Ctkp%3ABk9SR5yOjP73Yw

Quote from: AshimotoK0 on May 27, 2024, 01:36:16 PM

My wife has a 2023 Jazz Hybrid ..  complicated yea but does 67 mpg even around town

These days if your family car doesn't do at least 50mpg (if you stick to the speed limits) then you either have the wrong car or want to waste money. So actually petrol cost in miles per £ is cheaper than ever.
A pity the cheap electric cars look like they will not be available so as to protect western manufacturing which is lagging behind. T introduced a 25% tax and now B has upped it to 100% in the US on Chinese imports. Expect protection here also.
Renault Zoe is very old technology.

IMHO  mpg be it 25 mpg or 50 mpg is not the main cost of car ownership so it has never been a factor for me - we feel it is as its a weekly or monthly cost to fill up with fuel.  Doubling your mpg does not halve your true cost per mile of motoring even more so if you drive less than 5k miles in a year (I drive closer to 3k p.a. now).

The largest single costs for most private motorists is depreciation, plus other overheads such as Insurance, maintainence , Mot plus where applicable VED. Then there is the cost of buying a replacement vehicle that has gone up due to inflation. I buy used, I tend to keep a car for at least five years - my record for ownership is 12 years. Increasing maintainence costs tend to be the decider when it comes to change. My current XC40 is the most expensive car I have ever bought in my life by  a consderable multiplier (4) - I splashed out as it will be my last one so treated myself after 59 years of motoring.