SV Talk, Tuning & Tweaking Discussion and chat on all topics and technical stuff related to the SV650 and SV1000 Need Help: Try Searching before posting |
|
Thread Tools |
20-03-18, 11:05 PM | #1 |
Member
Join Date: Oct 2016
Location: Arkansas
Posts: 99
|
Jumpy tachometer solution.
All right this may be a big help to a lot of people who install a vapor, koso, or digital speedometer.
I recently installed a universal eBay Chinese El Cheapo speedometer tachometer. And like many post I've seen on svrider and other forms there is a problem with the tachometer being very jumpy. I didn't find a lot of information except for a resistor seemed to be the common solution. So I had to buy the pack off of Amazon that came with several hundred different size resistors. I had to continually add resistance until I found the sweet spot of around 3600 ohms. This is considerably higher than the others but I seem to have had a lot of crap or interference on the wire that I ran. I recommend starting off with three 200 ohm .25 w or 600 ohms like the other forms suggested, and then gradually increase until you find your sweet spot getting rid of the interference that you may have. I connected my pig tail to the rear ignition coil white wire. Not to be confused with high beams wire. I tried the black yellow but the white wire to the rear ignition coil proved to be a better signal. Small by -Ransome-, on Flickr Last edited by Jacobus; 22-03-18 at 02:06 AM. |
21-03-18, 02:29 PM | #2 |
Member
Mega Poster
Join Date: Feb 2017
Location: JAMOADR(1999 Curvy) 36,000 miles
Posts: 1,431
|
Re: Jumpy tachometer solution.
Nice work and good to know
Any chance you could make a blow-by-blow of how you fitted and wired it just in case I ever need to replace my own on my Curvy?
__________________
"Stultus est sicut stultus facit" |
22-03-18, 02:00 AM | #3 |
Member
Join Date: Oct 2016
Location: Arkansas
Posts: 99
|
Re: Jumpy tachometer solution.
Sure ill try to do that this weekend.
One more tip I forgot to mention, if you get the cheap resistor pack from Amazon or ebay, be sure to meter each resistor. some of mine were a dead short. |
22-03-18, 09:38 AM | #4 |
Member
Mega Poster
Join Date: Feb 2017
Location: JAMOADR(1999 Curvy) 36,000 miles
Posts: 1,431
|
Re: Jumpy tachometer solution.
Good stuff
__________________
"Stultus est sicut stultus facit" |
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
Tachometer drift | Terry Lee | SV Talk, Tuning & Tweaking | 13 | 30-07-15 02:38 PM |
Tachometer dial template | beabert | SV Talk, Tuning & Tweaking | 0 | 27-07-11 09:59 PM |
Tachometer is down after CDI and battery died | Cash | SV Talk, Tuning & Tweaking | 1 | 27-08-09 07:20 PM |
Tachometer problem | Roorkee | SV Talk, Tuning & Tweaking | 0 | 25-07-07 06:20 AM |
Jumpy tach, possible fix | dnwhoop02 | SV Talk, Tuning & Tweaking | 2 | 11-04-05 08:06 PM |