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Tachometer Installation (Read 1456 times)
Todd James
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Tachometer Installation
08/25/14 at 20:01:35
 
† †
I installed a Ryca Tachometer on my 2007 S40 and it has
worked well so I thought I would share the installation details.







I mounted it in a location that I thought looked somewhat "stock"
and used rubber grommets to isolate it from harsh vibration.
Refer to the pictures that follow for clarification of the parts and instructions.

Parts List
† †Tachometer from Ryca
† †Aluminum Angle †- † 1/16" x 2" x 4-1/4" Long
† †Stainless Steel U-Bolts - 1 inch †(2)
† †Rubber Grommets with I.D. that fits over nuts on tach mounting studs †(2)
† †Washers with O.D. approximately same as grommets †(2)
† †Krylon Clear Satin Finish (spray can)

Tools Needed
† †Hack saw
† †Drill and Bits
† †File
† †Wet-or-dry sandpaper, 400 grit and 600 grit

Instructions

Cut aluminum angle to length of 4-1/4"
Bend angle from 90 degrees down to 70 degrees
Cut one leg of angle from 2 inches wide down to 1 inch wide
Cut and shape 2 inch leg as shown in photos or to your own preference
In the 2 inch leg drill two holes for the grommets and one hole for the cable
In the 1 inch leg drill two clearance holes for the u-bolts spaced 2-3/4 inches on center
File and sand all edges of bracket smooth
Wet sand bracket with 400 grit, then 600 grit to satin finish
Coat bracket with Krylon Clear Satin Spray Finish
Check fit of u-bolts on risers and bend open slightly to fit if necessary
Cut off one leg of each u-bolt as shown in photos then file and sand smooth
Cut threaded leg of each u-bolt to proper length by test fitting on risers with bracket
Mount tachometer and bracket assembly on risers
Connect wires to coil and horn as shown
Note: Connect both the Blue and Red wires to the positive (+) horn wire (Orange/Black)








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« Last Edit: 09/01/18 at 10:04:29 by Todd James »  

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luckylouie82
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Re: Tachometer Installation
Reply #1 - 08/26/14 at 09:48:31
 
Todd, thanks so much for the instructions.  One question, because I don't want to mess the install up.  Pretty obvious where the tach wires into coil.  How do I connect to horn? splice? solder? into switch? Thanks so much.
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Todd James
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Re: Tachometer Installation
Reply #2 - 08/26/14 at 10:02:39
 
luckylouie:
As I recall I was able to slip the two wires into the spade
connector on the horn. I am not certain about that, and unfortunately
my S40 is at our coach in North Carolina.
An alternative is to get an in-line splice connector at an auto parts store.
You can identify the proper horn wire with a 12 volt test light or voltmeter.
Whichever wire has 12 volts with the ignition switch on is the correct one.
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Boogie_with_Stu
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Re: Tachometer Installation
Reply #3 - 06/02/15 at 09:46:45
 
Ok, so yeah...I know this is an old thread....but I'm new here so it's "new" to me  Smiley

This Ryca tach must use a dual fire ignition setup, yes? Since the Savage ignition fires twice per revolution of the drive shaft (one for combustion, one "wasted spark"), then wouldnt ANY dual fire ignition tach work on the Savage? I.e., any Harley tach? Or any 2 cyl 2 cycle engine ? So long as the tach is set up to accept 2 signals as the input for one revolution, it should work on the Savage....or not?

I'm ready for an education....fire away!
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Re: Tachometer Installation
Reply #4 - 06/02/15 at 15:24:31
 
Here is a link to the RYCA website....and it shows that the tach needs 1 spark for each revolution.  A 2 cycle single cylinder, a 2 cylinder 4 stroke bike with a distributor....or a single cylinder 4 stroke bike without a distributor and one wasted spark in the engine cycle meets that requirement.

You need to just be sure what you are ordering will work with one spark for each revolution of the crankshaft.

http://shop.rycamotors.com/mini_tachometer.html
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Re: Tachometer Installation
Reply #5 - 06/04/15 at 15:04:18
 
Ok, so I am REALLY not a "motor guy" Shocked

So the crankshaft rotates twice to complete the 4 cycles...yes? Does the engine internals then gear it down to ONE rotation of the drive shaft for every TWO rotations of the crankshaft?

Pls, just tell me to go to Wikipedia at any time if you feel these questions are beneath answering...lol
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Re: Tachometer Installation
Reply #6 - 06/04/15 at 20:49:00
 
Why would the output shaft be geared down? the transmission provides gear reduction
Which is my way of saying I don't think so, but i might be wrong
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Re: Tachometer Installation
Reply #7 - 06/05/15 at 03:56:00
 
The camshaft is geared down to rotate once for every two rotations of the crankshaft.

The "primary drive" then is geared down so the clutch is not turning as fast as the crankshaft (input shaft), further reduction is then done in the transmission , and then the "final drive" (front and rear pulley) reduces the rotations even more. (front pulley is connected to the transmission output shaft).
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Re: Tachometer Installation
Reply #8 - 02/04/17 at 18:18:55
 
I made this mount out of 1/4" X 1" aluminum flat bar. I bent it with a hammer and a vice then sanded and filed them to match the rest of the bike. I screwed them to the bottom of the triple clamp. The Ryca tach works perfectly.
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« Last Edit: 02/06/17 at 02:42:15 by T140V »  

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Re: Tachometer Installation
Reply #9 - 02/04/17 at 21:18:41
 
Those brackets look great!

T140V wrote on 02/04/17 at 18:18:55:
I made this mount out of 1/4" X 1" aluminum flat bar. I bent it with a hammer and a vice the sanded and filed them to match the rest of the bike. I screwed them to the bottom of the triple clamp. The Ryca tach works perfectly.

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Re: Tachometer Installation
Reply #10 - 02/04/17 at 21:22:26
 
I used Todd's method. I couldn't get the exact dimensions for the materials, but I worked it out  Smiley
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Re: Tachometer Installation
Reply #11 - 02/05/17 at 01:20:21
 
IslandRoad wrote on 02/04/17 at 21:22:26:
I used Todd's method. I couldn't get the exact dimensions for the materials, but I worked it out †Smiley



I had time to spare so I first bent them to fit the angle of the forks. I drilled a hole in the base's and mocked them up. After figuring out the right spot for the tach I marked the studs on the tach with Persian blue and touched the brackets with the studs. I drilled a center hole for the wire and then the two mounting holes. Once they were loose fitted I tietend everything up. It's real solid now. Smiley
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Re: Tachometer Installation
Reply #12 - 02/05/17 at 20:00:45
 
The perfect spot! Looks great!
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Re: Tachometer Installation
Reply #13 - 02/06/17 at 00:40:46
 
I reckon these two versions place the tach in the best possible positions. They're great options!

As opposed to the Ryca bracket, which costs about 50 bucks, and looks like it would mount the base of the tach at the height where the handlebars are bolted to the risers. That would be way too high on the savage with stock risers.

This forum is the gift that just keeps giving! †Smiley
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Re: Tachometer Installation
Reply #14 - 02/06/17 at 02:34:52
 
Here is what the brackets look like. A little filing, sanding and polishing gives you a sleek looking mount. Cost was $12 for the aluminum and a couple dollars for the bolts.
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