Tune-up Tach? - Honda Shadow Forums : Shadow Motorcycle Forum

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Old 05-18-2011, 06:22 AM   #1 (permalink)
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Default Tune-up Tach?

After performing a search of this forum and not finding relevant information, I decided to post a question to the group. If there is a thread already addressing this topic, I do apologize for the duplication and will willingly take my lumps.

I am Not looking for a permanent mounted tach, just need one for some tune-up/carb work that I need to perform. Most of the external tachs that I have found are set-up/designed for automobiles, do any of you know of a tach that works/plays well with the Honda V-Twin? One that measures in the 50 RPM range would be outstanding.

Let the info flood begin.
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Old 05-18-2011, 07:23 AM   #2 (permalink)
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I looked for the same thing, but i cannot find one. Even doing a search online.
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Old 05-18-2011, 07:45 AM   #3 (permalink)
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Finding one that reads off a lead that just temporarily clips over a spark plug wire would be nice. An automotive tach would be looking for a 4 cycle, 4 cylinder, wouldnt you just divide or multiply a reading X2 if you had such a automotive tach?
I used to work on Stihl chainsaws years ago at a rental yard. We had this portable LCD tach that just clipped over the spark plug wire for dialing in the carb. That was a 2 cycle though. But you get the idea.
I'd be afraid to just take a off the shelf generic tach and try to integrate it into my electrical system. I know I'd smoke a CDI or something I cant afford to replace, or not know what I burnt and have to take it to the dealer. But.....thats just me and my luck with electronics.
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Old 05-18-2011, 08:37 AM   #4 (permalink)
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One of these will do the job.

Electronic Specialties 328 - EZ Tach +PLUS | eBay
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Old 05-18-2011, 01:18 PM   #5 (permalink)
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Quote:
Originally Posted by verdeva View Post
Thanks. It looks like this might do the job. See, I knew one of you guys or gals would have a good answer for me. This group is great.
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Old 05-18-2011, 07:18 PM   #6 (permalink)
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I bought this on ebay a couple of weeks ago for under $20, to be used for checking and setting idle speed RPMS (mine was 200 RPMs too low) and repairs. It's meant to be a permanently-mounted electronic Hobbs (hour) meter and basic tach, but it attaches just fine temporarily by winding the sensor wire end around a spark plug cable a few times. It seems to work just fine as it is, but it can be set for a variety of engine types. It's so small and light weight that it can be carried in a basic tool kit.

Just search for this on ebay:

Tachometer Hour meter 2 4 Stroke Small Engine Spark
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Old 05-18-2011, 10:39 PM   #7 (permalink)
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Quote:
Originally Posted by shrinkwrap View Post
I bought this on ebay a couple of weeks ago for under $20, to be used for checking and setting idle speed RPMS (mine was 200 RPMs too low) and repairs. It's meant to be a permanently-mounted electronic Hobbs (hour) meter and basic tach, but it attaches just fine temporarily by winding the sensor wire end around a spark plug cable a few times. It seems to work just fine as it is, but it can be set for a variety of engine types. It's so small and light weight that it can be carried in a basic tool kit.

Just search for this on ebay:

Tachometer Hour meter 2 4 Stroke Small Engine Spark

Tachometer Hour meter 2 4 Stroke Small Engine Spark | eBay

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Old 05-19-2011, 06:49 AM   #8 (permalink)
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How does that work? Its kind of what i was looking for. (wanted a dial gauge, but that would work). Its cheap. I might be able to modify it to look built in to the bike..

Has anyone tried to use a Tachometer from a different model Honda?
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Old 05-19-2011, 09:09 AM   #9 (permalink)
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Stock tachs are not usually accurate enough for tuning work. I've used them my whole life for tuning, but I have fould the can be 50-100 rpm off, sometime more.
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