Smartphone App for Cub High Idle Adjustment
Posted: Mon Oct 01, 2012 9:08 pm
I could never pull the trigger and spend the cash on a S&W or other quality hand held mechanically driven tachometer since I seldom work on anything that is impossible to get a RPM reading from, either mechanical or electric.
Too much money for too little use. I traditionally adjust high idle simply by ear.
I have a free satellite powered speedometer app on my smartphone (Android Ulysse Speedometer) and when paired with data from the manual, it works just the same as a tachometer.
Since my magneto equipped cub has the original size tires and my high idle is apparently set fairly close to 1800, it clicks along at a 7 mph in the big hole all day long.
I checked my other cub which I have set with an electric tach as close to 1800 as possible and it also runs a steady 7 MPH on the speedometer app.
I know not everyone has a smartphone but I'm sure one of your grandkids probably does and would be happy to download the app and let you borrow it to check and adjust your high idle setting if necessary.
Just one more trick of the trade to add to our arsenal thanks to modern technology.
When I first purchased my magneto cub it scurried along at 12 MPH because the governor rockshaft was all jacked up and I believe the previous owner may have turned it up attempting to juice a little more power out of it for the Woods 59 Mower.
Was the engine really turning 3600 (it was really screaming) or is there math involved in rpm calculation in relation to road speed?
Too much money for too little use. I traditionally adjust high idle simply by ear.
I have a free satellite powered speedometer app on my smartphone (Android Ulysse Speedometer) and when paired with data from the manual, it works just the same as a tachometer.
Since my magneto equipped cub has the original size tires and my high idle is apparently set fairly close to 1800, it clicks along at a 7 mph in the big hole all day long.
I checked my other cub which I have set with an electric tach as close to 1800 as possible and it also runs a steady 7 MPH on the speedometer app.
I know not everyone has a smartphone but I'm sure one of your grandkids probably does and would be happy to download the app and let you borrow it to check and adjust your high idle setting if necessary.
Just one more trick of the trade to add to our arsenal thanks to modern technology.
When I first purchased my magneto cub it scurried along at 12 MPH because the governor rockshaft was all jacked up and I believe the previous owner may have turned it up attempting to juice a little more power out of it for the Woods 59 Mower.
Was the engine really turning 3600 (it was really screaming) or is there math involved in rpm calculation in relation to road speed?