Author Topic: Tuning carb with a tach?  (Read 175 times)

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Offline 660magnum

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Re: Tuning carb with a tach?
« Reply #10 on: February 28, 2014, 03:12:21 pm »
That is hard to do for most of us. That's why I said to have it rich enough that you are certain it is not the rev limiter.

If you hold your tach on the saw and rev the saw up and it goes into rev limiting, the tach will go nuts.
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Offline Cut4fun

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Re: Tuning carb with a tach?
« Reply #11 on: February 28, 2014, 03:14:46 pm »
I was having a hard time telling the difference between 4 stroking and hitting the rev limiter.

If your using a tach. Here is what you will see, bouncing around rpm all over the place 11k 12k 13k  up down etc = hitting rev limiter

Fat 4 stroking  showing nice steady say 12K = 4 stroking.
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