Ask Experts Questions for FREE Help !
Ask
    RDele's Avatar
    RDele Posts: 5, Reputation: 1
    New Member
    		  
    #1

    Jun 17, 2009, 09:29 AM
    Checking RPM 12 HP B&S engine
    How do you test the RPM of 12 HP B&S engine riding mower? I believe I may have the tools to do it but I don't know what to hook up to where on the engine.
    Any help would be appreciated.
    KISS's Avatar
    KISS Posts: 12,510, Reputation: 839
    Uber Member
    		  
    #2

    Jun 17, 2009, 09:38 AM

    You should be able to use a tack that attaches to the spark plug wire with an inductive pickup.

    You would just have to adjust for the number of cylinders. Use say 4 CYL and divide by 4.

    There are special tachs and testers for small engine repair.
    RDele's Avatar
    RDele Posts: 5, Reputation: 1
    New Member
    		  
    #3

    Jun 17, 2009, 10:07 AM
    Quote Originally Posted by KeepItSimpleStupid View Post
    You should be able to use a tack that attaches to the spark plug wire with an inductive pickup.

    You would just have to adjust for the number of cylinders. Use say 4 CYL and divide by 4.

    There are special tachs and testers for small engine repair.
    I only have a tack meter with two leads (no inductive pickup) . What do I hook them up to?
    Any other solutions?

    I do appreciate your help.
    KISS's Avatar
    KISS Posts: 12,510, Reputation: 839
    Uber Member
    		  
    #4

    Jun 17, 2009, 10:32 AM

    Tecumseh - Vibra Tach / Tachometer 670156

    About $40

    Lawn Mower Parts

    And

    ESI 321 Versa-Tach Digital Small Engine Tachometer

    If your engine has points, you should be able to get a regular tack to work with a 9V battery and a couple of diodes. I'm assuming it doesn't. If it has points, we can explore that option.
    RDele's Avatar
    RDele Posts: 5, Reputation: 1
    New Member
    		  
    #5

    Jun 17, 2009, 12:35 PM
    Quote Originally Posted by KeepItSimpleStupid View Post
    Tecumseh - Vibra Tach / Tachometer 670156

    about $40

    Lawn Mower Parts

    and

    ESI 321 Versa-Tach Digital Small Engine Tachometer

    If your engine has points, you should be able to get a regular tack to work with a 9V battery and a couple of diodes. I'm assuming it doesn't. If it has points, we can explore that option.
    ** It does not have points. It has a solenoid , starter, ammeter,and a bunch of safety switches.
    I appreciate your patience with my lack of knowledge in this area but this is how we learn.
    I thank you for your help.
Not your question? Ask your question View similar questions
 

Question Tools Search this Question
Search this Question:

Advanced Search

Add your answer here.


Check out some similar questions!

99 honda civic, engine light blinking, engine start jumping. [ 4 Answers ]

When I was driving home, my car start shaking, then I stopped and turn the engine off. When I started back up, the engine still little jumpy and the engine light start blinking. Did any body knows what's going on? Please help. Thanks

Engine light stays on and Engine stops at any time. [ 4 Answers ]

Had the engine light checked out by several mechanics can't find out why it stays on all the time. Plus the engine will stops running when I come to a stop. Other times I will park and go in to a store and come out and it won't start but will wait a few minutes and it will start up again. It is...

My 16 hp vanguard engine made a terrible racket inside the engine no longer runs, why [ 2 Answers ]

Mower was running fine, started making a noise inside engine, lost power, noise returned, and engine died. No longer will start, just spins. Is the engine trashed or possibly fixable?

Impossible of change v6 engine to EX engine in honda 1997 model [ 1 Answers ]

Is it possible to change v6 engine in honda 1997 model Ex engine (V-TEC) and what are the possible components that will change

Checking a check engine light 95 honda civic dx [ 1 Answers ]

I just purchaced a 95 honda civic dx. The check engine light is on, I went to autozone to find out what is wrong with it. They can not use a scantool on it. How can I retrive the code. I've read about jumping a conector with a wire. Where is it? What pins do I need to jump. Thanks Chris

View more questions Search