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84 1100 tack is twitchy

Started by tboy, July 31, 2012, 07:31:37 AM

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tboy

July 31, 2012, 07:31:37 AM
My 84 has been on the road for two years after a restoration.  It runs beautifully in my unpracticed eye;  plugs are pristine after the season, no temprament issues hot or cold weather,(Canada).  I love it.
Always sensitive to its well-being, I have just in the last month noticed the tach is twitching. A new condition. It progresses properly through an acceleration and reads properly, but once in a while the needle twitches up a few hundred rpm for half a second, then settles to its normal rate. It does this for a while, then doesn't do it forever during a ride. 
Thoughts?
tboy

Pat Conlon

#1
July 31, 2012, 10:51:31 AM
The tach receives a signal from the coil. Sand clean the wire connection at the coil along with the coil grounds and see it that helps.
1) Free Owners Manual download: https://tinyurl.com/fmsz7hk9
2) Don't store your FJ with E10 fuel https://tinyurl.com/3cjrfct5
3) Replace your old stock rubber brake lines.
4) Important items for the '84-87 FJ's:
Safety wire: https://tinyurl.com/99zp8ufh
Fuel line: https://tinyurl.com/bdff9bf3

fj11.5

#2
July 31, 2012, 12:14:12 PM
if what pat suggested dousnt fix the problem , try cleaning the contacts on the wires at the back of the gauge housing , :scratch_one-s_head:, just extra work to get to though
unless you ride bikes, I mean really ride bikes, then you just won't get it

84 Fj1100  effie , with mods
( 88 ) Fj 1200  fairly standard , + blue spots
84 Fj1100 absolutely stock standard, now more stock , fitted with Fj12 twin system , no rusted headers for this felicity jayne

tboy

#3
July 31, 2012, 02:51:58 PM
Thanks to the responders.  First day on the site and I've got my money's worth.....   I will donate to site fer sure.

fj11.5

#4
July 31, 2012, 04:59:21 PM
welcome mate :good2:, , and if your lucky our local power ranger monkey may send a present one day for donating  :good2: :yahoo:
unless you ride bikes, I mean really ride bikes, then you just won't get it

84 Fj1100  effie , with mods
( 88 ) Fj 1200  fairly standard , + blue spots
84 Fj1100 absolutely stock standard, now more stock , fitted with Fj12 twin system , no rusted headers for this felicity jayne

FJmonkey

#5
July 31, 2012, 08:00:40 PM
Quote from: fj11.5 on July 31, 2012, 04:59:21 PM
welcome mate :good2:, , and if your lucky our local power ranger monkey may send a present one day for donating  :good2: :yahoo:
http://www.fjowners.com/index.php?topic=6838.0 Read down the thread...

I have 5 of these gems for members that have donated in the last 6 months. You can make a donation now and qualify if you have not donated in the last 6 months. No profit for me, you get the tool for the cost of shipping. This club has done so much to improve my FJ enjoyment and Kookaloo that giving back is simply the right thing to do.
The glass is not half full, it was engineered with a 2X safety factor.

'86 Ambulance - Bent frame, cracked case, due for an overhaul
'89 Stormy Blue - Suits my Dark Side
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