How to gauge rpm?

BenRM · 04-24-2009, 09:13 AM

Hi there,

I've a 14.5hp B&S Intek engine in a Yardman ride-on mower. I'm going to service it (new plug, oil, fuel and air and oil filters) this weekend. As far as I know, the carb hasn't been adjusted in years. The manual tells me to tweak it to 1750rpm at idle. What do you people use to measure rpm on one of these engines?

All help, much appreciated.

B

k2skier · 04-24-2009, 09:20 AM

http://www.tinytach.com/tinytach/gasoline.php

Volt-Schwibe · 04-24-2009, 01:15 PM

I've always used one of these. http://www.manddsmallengine.com/briggs/tools/19200.html

That site has it for 30$, but i found mine at a lawn supply for 15$. It may not look like anything special, but it's accurate, and simple to use. Also takes up very little space in your toolbox, and has no electronic parts that can fail.

BenRM · 04-26-2009, 12:58 PM

Great. Thanks to both of you! B

04-24-2009, 09:13 AM	#1 (permalink)
BenRM Registered User Join Date: Apr 2009 Posts: 2 OS: OS X	How to gauge rpm? Hi there, I've a 14.5hp B&S Intek engine in a Yardman ride-on mower. I'm going to service it (new plug, oil, fuel and air and oil filters) this weekend. As far as I know, the carb hasn't been adjusted in years. The manual tells me to tweak it to 1750rpm at idle. What do you people use to measure rpm on one of these engines? All help, much appreciated. B

04-24-2009, 09:20 AM	#2 (permalink)
k2skier Registered User Join Date: Sep 2008 Location: Oregon Posts: 313 OS: XP Home-SP3 My System	Re: How to gauge rpm? http://www.tinytach.com/tinytach/gasoline.php

04-24-2009, 01:15 PM	#3 (permalink)
Volt-Schwibe Asst. Manager, Automotive Forums; HJT Trainee Join Date: Jan 2003 Location: Behind you, watching you as you type. Posts: 7,372 OS: Click "My System" to view details My System	Re: How to gauge rpm? I've always used one of these. http://www.manddsmallengine.com/briggs/tools/19200.html That site has it for 30$, but i found mine at a lawn supply for 15$. It may not look like anything special, but it's accurate, and simple to use. Also takes up very little space in your toolbox, and has no electronic parts that can fail. __________________ <signature> TSF is funded by our Admin's pocket, care to help? Power Tip: Subscribe to your thread (Thread Tools) to receive an instant email notification when you get a reply. New Members: Creating a single new thread in the correct section is the best way to assure your thread will receive a reply. </signature>

04-26-2009, 12:58 PM	#4 (permalink)
BenRM Registered User Join Date: Apr 2009 Posts: 2 OS: OS X	Re: How to gauge rpm? Great. Thanks to both of you! B