Rpm help

jckrall · 03-19-2018, 09:56 AM

Have an 85 club car with stock KF82. rebuilt the top end and have everything pretty well adjusted and runs pretty well. It will do 14MPH according to my gps but wanting to see what kind of RPM i'm running. Any cheap way to check what kind of rpm i'm running?

thanks

sformal · 03-19-2018, 10:24 AM

I installed one of these (but not on eBay) in my engine compartment; current and max rpm, hourmeter... handy for maintenance of the engine.

It works on battery; I installed it 2 years ago and never changed yet.

I am sure you can find it cheaper...

jckrall · 03-19-2018, 10:33 AM

thanks thats the cheapest option i have seen. looks like it would do what i need it to do.

BearsFan315 · 03-19-2018, 11:57 AM

Runleader and Searon both make ones that are nice and around $15-20 get great reviews sold all over ebay and amazon and other online shops to :)

i was looking at the inductive models that work with 1 cylinder engines !!

jckrall · 03-19-2018, 03:26 PM

So I got a timing light with rpm on it. Should I use two cycle or 4? Does anyone know if the spark plug fires every revolution with obviously one of the sparks being useless? I’m thinking the engine is turning to fast. Any help much appreciated. Don’t really want to buy a tach as I don’t need one after it’s set.

BearsFan315 · 03-20-2018, 05:35 AM

its a 4 cycle... separate oil and gas, 2 cycles usually have oil gas mixture as one.

and does it have a setting or calc on cylinders ?? this setting helps is calculate RPM vs spark ignition. if not then you may have some math to do :)

jckrall · 03-20-2018, 11:38 AM

yes i understand it is a four stroke engine but from what i understand the spark plug sparks every revolution of the crank even though one of the sparks does nothing.

BearsFan315 · 03-20-2018, 02:19 PM

good question, not sure how these Kawasaki's do it

i have a small hand held tach that you put a piece of reflective tape on the pulley and then the tach picks that up and gives you a number. nice little deceive, use it on my 1929 to set idle. less than $20 and works great, played with it on my ceiling fans, and anything that spins/ rotates :)

Digital Photo Laser Tachometer Non Contact Tach RPM Meter

Jimmie · 03-20-2018, 06:33 PM

Quote:

Originally Posted by jckrall

yes i understand it is a four stroke engine but from what i understand the spark plug sparks every revolution of the crank even though one of the sparks does nothing.

You are correct, it fires on the compression stroke and the exhaust stroke

03-19-2018, 09:56 AM	#1
jckrall Not Yet Wild Join Date: Apr 2017 Posts: 51	Rpm help Have an 85 club car with stock KF82. rebuilt the top end and have everything pretty well adjusted and runs pretty well. It will do 14MPH according to my gps but wanting to see what kind of RPM i'm running. Any cheap way to check what kind of rpm i'm running? thanks
jckrall Not Yet Wild Join Date: Apr 2017 Posts: 51

03-19-2018, 10:24 AM	#2
sformal Gone Wild Join Date: Jun 2015 Location: Philippines Posts: 570	Re: Rpm help I installed one of these (but not on eBay) in my engine compartment; current and max rpm, hourmeter... handy for maintenance of the engine. It works on battery; I installed it 2 years ago and never changed yet. I am sure you can find it cheaper...

03-19-2018, 10:33 AM	#3
jckrall Not Yet Wild Join Date: Apr 2017 Posts: 51	Re: Rpm help thanks thats the cheapest option i have seen. looks like it would do what i need it to do.
jckrall Not Yet Wild Join Date: Apr 2017 Posts: 51

03-19-2018, 11:57 AM	#4
BearsFan315 Gone Wild Join Date: Dec 2017 Location: Portsmouth, VA Posts: 626	Re: Rpm help Runleader and Searon both make ones that are nice and around $15-20 get great reviews sold all over ebay and amazon and other online shops to :) i was looking at the inductive models that work with 1 cylinder engines !!

03-19-2018, 03:26 PM	#5
jckrall Not Yet Wild Join Date: Apr 2017 Posts: 51	Re: Rpm help So I got a timing light with rpm on it. Should I use two cycle or 4? Does anyone know if the spark plug fires every revolution with obviously one of the sparks being useless? I’m thinking the engine is turning to fast. Any help much appreciated. Don’t really want to buy a tach as I don’t need one after it’s set.
jckrall Not Yet Wild Join Date: Apr 2017 Posts: 51

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03-20-2018, 05:35 AM	#6
BearsFan315 Gone Wild Join Date: Dec 2017 Location: Portsmouth, VA Posts: 626	Re: Rpm help its a 4 cycle... separate oil and gas, 2 cycles usually have oil gas mixture as one. and does it have a setting or calc on cylinders ?? this setting helps is calculate RPM vs spark ignition. if not then you may have some math to do :)

03-20-2018, 11:38 AM	#7
jckrall Not Yet Wild Join Date: Apr 2017 Posts: 51	Re: Rpm help yes i understand it is a four stroke engine but from what i understand the spark plug sparks every revolution of the crank even though one of the sparks does nothing.
jckrall Not Yet Wild Join Date: Apr 2017 Posts: 51

03-20-2018, 02:19 PM	#8
BearsFan315 Gone Wild Join Date: Dec 2017 Location: Portsmouth, VA Posts: 626	Re: Rpm help good question, not sure how these Kawasaki's do it i have a small hand held tach that you put a piece of reflective tape on the pulley and then the tach picks that up and gives you a number. nice little deceive, use it on my 1929 to set idle. less than $20 and works great, played with it on my ceiling fans, and anything that spins/ rotates :) Digital Photo Laser Tachometer Non Contact Tach RPM Meter