Tachometer

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lolofigo
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Tachometer

Post by lolofigo »

Hi anyone here has any experience with wiring up tachometer on pcx? Not sure where to get engine signal from. There are two connectors on ignition coil but which one is it?


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Re: Tachometer

Post by you you »

lolofigo wrote:Hi anyone here has any experience with wiring up tachometer on pcx? Not sure where to get engine signal from. There are two connectors on ignition coil but which one is it?


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Depends on the tachometer. If you can tell us which one you have it would certainly help.
lolofigo
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Re: Tachometer

Post by lolofigo »

you you wrote:
lolofigo wrote:Hi anyone here has any experience with wiring up tachometer on pcx? Not sure where to get engine signal from. There are two connectors on ignition coil but which one is it?


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Depends on the tachometer. If you can tell us which one you have it would certainly help.
Cheap one of eBay. Black and red lead for light. Black and green for ground and positive after ignition and yellow for engine signal

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Re: Tachometer

Post by homie »

If its a 50 dollar Koso tach you will need to ground the black and simply wrap the red around the spark plug wire several times (do not connect red, just coil tightly) Removing the lower panel will take most of your time because I don't think you can get in there without taking the left lower panel off a 2012 model. When taking off the panel place a rag over the kickstand prior to protect your paint. After all screws are out you'll start popping the panel by carefully pulling from the rear by the passenger peg first.

http://www.amazon.com/Koso-BA003040-Min ... tachometer

The Koso works great but the instructions are a little vague. Remember to program it for a single cylinder as it defaults to multi piston bikes... around 1750 rpm when idling will be the proper reading for PCX.
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Re: Tachometer

Post by you you »

lolofigo wrote:
you you wrote:
lolofigo wrote:Hi anyone here has any experience with wiring up tachometer on pcx? Not sure where to get engine signal from. There are two connectors on ignition coil but which one is it?


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Depends on the tachometer. If you can tell us which one you have it would certainly help.
Cheap one of eBay. Black and red lead for light. Black and green for ground and positive after ignition and yellow for engine signal

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Perhaps ask the sellers? Really cheap rev counters can pick up the signal from wrapping the wire around the HT lead.
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Re: Tachometer

Post by chainsaw »

its the one on the rear side of the bike
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Re: Tachometer

Post by lolofigo »

chainsaw wrote:its the one on the rear side of the bike
Tried connecting to the other one first. Probably blown it as it doesn't work on either of connectors.

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Re: Tachometer

Post by Alibally »

It's usually the negative side of the coil for the trigger.
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Re: Tachometer

Post by maddiedog »

homie wrote:If its a 50 dollar Koso tach you will need to ground the black and simply wrap the red around the spark plug wire several times (do not connect red, just coil tightly)
^^ That's exactly what I'd do. It should pick up the charge on the spark plug wire inductively closely enough to allow you to monitor your RPM.
Currently ride: 2011 Honda PCX 125 - Upgraded windshield and seat, keeping this one mostly stock
Previously rides: 2005 V-Strom DL650, 1974 Vespa Ciao, 2011 Honda PCX 170 (tons of mods - takegawa 170cc big bore kit, gears, etc), 1996 Honda Nighthawk 250, 1987 Honda Spree, 2000 KTM 125SX, 2003 Honda Silverwing, 2007 Genuine Buddy 125, 1998 Honda PC800, 2008 Buddy 125 (white), 2008 Buddy 125 (red), 2001 Honda Reflex, 1987 Honda Elite, 1988 Honda Spree, 2007 Yamaha Vino, 2007 Honda Metro, 2x 125cc pure-chinesium dirt bikes
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