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Old 12-15-2012, 11:09 AM
mowisme mowisme is offline
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checking small engine rpm?

Hi folks- I posted while back on differant issues on this GX620- and thanks to all the help it seems to be running great. I don't want to over-rev it but at same time want the max safe rpm. Is their any way I can check rpm without the crank exposed? Not sure what to buy or even how to hook up a electronic tach? Years ago I had a dwell meter..didn't they show rpm's? - my mind is fuzzy on this as I never had reason to check rpms before. Any thoughts on a tach from HF? Thanks again- Gene
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Old 12-15-2012, 11:37 AM
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BigFish BigFish is offline
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Forget the dwell meter. HF sells a tach-DVOM for cheap. I have no idea how good it is, but if your only needin it this one time, why not.

They make a Tiny Tach that's not too expensive, but I understand the knock-off versions aren't very accurate.

Most mechanics nowadays use a good digital tachometer that you only have to get the unit near the plug wire for it to pick up a pulse. Some can be pricey.
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Old 12-15-2012, 12:33 PM
Oldtimer Oldtimer is offline
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BRIGGS & STRATTON Engine 800-50,000 RPM Vibra Tach/ Tachometer 19200

http://www.iskco.com/iskco_web_2012_035.htm

No batteries--no LED displays.

Oldtimer
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Old 12-15-2012, 12:41 PM
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BigFish BigFish is offline
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Quote:
Originally Posted by Oldtimer View Post
BRIGGS & STRATTON Engine 800-50,000 RPM Vibra Tach/ Tachometer 19200

http://www.iskco.com/iskco_web_2012_035.htm

No batteries--no LED displays.

Oldtimer
Yeah, and a pain in the a$$ to use!

I got two of em, ya wanna buy one.......or both!

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Last edited by BigFish; 12-15-2012 at 12:47 PM.
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Old 12-15-2012, 01:54 PM
ricky86 ricky86 is offline
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Quote:
Originally Posted by Oldtimer View Post
BRIGGS & STRATTON Engine 800-50,000 RPM Vibra Tach/ Tachometer 19200

http://www.iskco.com/iskco_web_2012_035.htm

No batteries--no LED displays.

Oldtimer
Those Vibra-tachs are incredibly accurate. Does require some practice, but far from difficult to use.
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Old 12-15-2012, 02:09 PM
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BigFish BigFish is offline
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Originally Posted by ricky86 View Post
Those Vibra-tachs are incredibly accurate. Does require some practice, but far from difficult to use.
OK, I'll trade ya my TWO, count em, TWO treysits for your digital hand held tach!
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Old 12-15-2012, 02:43 PM
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piston slapper piston slapper is offline
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Quote:
Originally Posted by BigFish View Post
OK, I'll trade ya my TWO, count em, TWO treysits for your digital hand held tach!
He's serious....I am now the proud owner of a nice pair of Polish verneers...
Formerly owned by the BigFish himself...only cost me a RATchete...circa 1857...
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Old 12-15-2012, 03:19 PM
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dutch1 dutch1 is offline
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Here's what I've used since the mid 90's--tough to beat for the money.

http://www.amickssuperstore.com/OPPA...100%20tach.htm

I picked mine up at an Echo update where they were selling them for around $50 bucks as I recall. They are still available from Echo. About 3-4 months ago, mine would read 2X the actual rpms and I contemplated buying a new one. An Echo dealer quoted me $120, but a battery replacement took care of the problem. I have an Echo part number if anyone has an interest.
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Old 12-15-2012, 09:41 PM
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BigFish BigFish is offline
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Yeah, I use a similar one from Oppama via Echo. Mine doesn't have all the buttons though.
The dam thing is thin as could be and works great.
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Old 12-15-2012, 10:00 PM
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BigFish BigFish is offline
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Yeah, I use a similar one from Oppama via Echo. Mine doesn't have all the buttons though.
The dam thing is thin as could be and works great.
Mine is a PET 1000R Echo part # 99051130017.

The PET 1100R is Echo part # 99051130018.

They are the hot lick!
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