1 reply to this topic

[jcallicott]

Dose anyone know / can recommend a way of working out the RPM when setting the ignition timing on an engine? I don't have a rev counter.....

I was wondering if its worth getting a timing light with that feature built in?

Thanks

 

[Stu1961]

No real easy way to tell what the rpm is without some sort of tacho, some experienced folk can tell and likewise with the timing. As a beginner myself I would recommend getting one I did and it made the job relatively simple. I bought the Accuspark one with the tacho built it works well setting the timing but the tacho is awful. In the end I used a calibrated digital one from work used for checking the speed of compressors. You can buy similar items on EBay for less than a tenner they come supplied with a roll of reflective tape, you put/stick a small piece on the crankshaft pulley aim the tacho at the tape and press the button and away you go the digital readout tells you the rpm.