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cdi swap / rev limiter options?

Started by jnimbostratus, March 31, 2014, 10:04:59 PM

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jnimbostratus

March 31, 2014, 10:04:59 PM
ok hello all i will try to keep this shorter then my introduction post where you can see my project http://www.fjowners.com/index.php?topic=11323.0
my problem is i rewired the bike completly and am not going to be running a dash. its an 84 so my question is if i want to run a revlimit do i need to somhow waterproof and tuck the circuit bored style stock rev limiter or is it possible to use a newer cdi box? i discovered using the search feature the newer cdis have built in rev limit? was not sure if this would be the best place to post this if anyone recomemnd it be moved let me know and i will post in correct section. thanks

Bozo

#2
April 01, 2014, 08:43:59 AM
Quote from: andyb on April 01, 2014, 08:06:47 AM
Just put a rev limiter on it then.

http://www.dynaonline.com/skins/products/accessories/Dyna_RPM_Limiters/


I've got this unit on my Z1R and it works great (prevents the unwelded crank from twisting). I tried the throttle when this unit was set at 6,000rpm and thats exactly where it stayed, no popping, no weird noises just sat on 6,000rpm.
First major bike in my life was a Mach III widow maker.
My Second permanent bike 1978 Z1R (owned since Dec 1977)
My Third permanent bike is the 89 FJ12 - nice and fast
Forth bike 89 FJ12 my totally standard workhorse
81 GPZ1100 hybrid - what a bike, built to sell but I can't part with it

racerrad8

#3
April 01, 2014, 10:37:34 AM
The rev limiter is part of all CDI ignition of all FJ's. Not the dash, it just has the tach to tell you were the revs are.

Randy - RPM
Randy - RPM

jnimbostratus

#4
April 01, 2014, 11:34:22 AM
then why dos the diagram for 84-85 show an over rev limiter switch with 2 wires and all other diagrams show no rev limiter at all.

racerrad8

#5
April 01, 2014, 03:47:08 PM
I just had a look at the GYSM and I am not sure what that is, I see it mounted up high in the fairing.

Pat, do you have any idea of the switch?

Randy - RPM
Randy - RPM

Pat Conlon

#6
April 01, 2014, 08:20:32 PM
No I don't.
I have had my '84 zing well past 9.5k several times and have never felt anything like a stutter, indicating a ignition cut off...
I've bounced off the rev limiter several times in my Miata, so I know what one feels like.

Which reminds me....Randy, you have to do something about those WFO 3rd gear power wheelies I'm having...
I never had that before, until you worked on my bike.... :shok:
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

Flynt

#7
April 01, 2014, 08:35:20 PM
Quote from: Pat Conlon on April 01, 2014, 08:20:32 PM
those WFO 3rd gear power wheelies I'm having...

I'm still scared to go WFO!  I did pull a nice 3rd gear wheelie with Diane onboard the other day...  getting on the freeway and ramping up to speed.  I decided the best course of action was to pour it on and get ahead of the traffic.  At about 1/2 twist and 6K the front lifted about 3" I'd guess.  Held it for maybe 100ft or so until it gently set itself down (yes, we were hauling ass at that point).  Diane's actually getting pretty comfortable with this shit...  as long as she doesn't know that is.

Frank
There's plenty of time for sleep in the grave...

Pat Conlon

#8
April 01, 2014, 08:39:43 PM
Yea Frank, I can imagine when the Wizard comes on the cam with your FCR's...

I was surprised at mine with 18/40 gearing and all....it's really quite fun, when you get used to it.

1st and 2nd gear, you would expect, but 3rd?

Whooohoo
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

jnimbostratus

#9
May 07, 2014, 08:56:49 PM
so noone has anything on this huh? there was a circuit bored in the dash with wires going to the cdi. sure seems to me like an external rev limiter. someone needs to know.

rktmanfj

#10
May 07, 2014, 09:20:45 PM
Quote from: racerrad8 on April 01, 2014, 10:37:34 AM
The rev limiter is part of all CDI ignition of all FJ's. Not the dash, it just has the tach to tell you were the revs are.

Randy - RPM

Quote from: jnimbostratus on May 07, 2014, 08:56:49 PM
so noone has anything on this huh? there was a circuit bored in the dash with wires going to the cdi. sure seems to me like an external rev limiter. someone needs to know.



(popcorn)
Randy T
Indy

Blessed be the LORD my strength, which teacheth my hands to war, and my fingers to fight.
Psalms 144:1

'89 FJ1200
'90 FJ1200
'78 XT500
'88 XT350

Capn Ron

#11
May 07, 2014, 09:22:09 PM
Quote from: Flynt on April 01, 2014, 08:35:20 PM
Quote from: Pat Conlon on April 01, 2014, 08:20:32 PM
those WFO 3rd gear power wheelies I'm having...
I did pull a nice 3rd gear wheelie with Diane onboard the other day...  Diane's actually getting pretty comfortable with this shit...  as long as she doesn't know that is.

Frank

Frank,

I've got near-as-makes-no-difference, 100,000 miles on motorcycles over the last 28 years.  Throughout that time, girlfriends have come and gone and most have taken a ride or two on the back of the bike.  As anyone who has ridden with me can attest, I'm not a hot-dogger...I rarely take chances and try to stay well within the limits of mortality.  Some of them have enjoyed it...some have LOVED it...some have just tolerated my passion and one of my dates even passed out as soon as I made the first stop for gas.   :shok:

I've seen you ride...WITH Diane on board...always controlled, skilled...but often with a flare for twisting the throttle.  She steps off and has a smile on her face every time and a look that implies, "What?  It was just a ride..."  You've got a keeper there!   :good2:

To keep this on topic, I can give you the number of the girl who passed out...she will limit your revs very efficiently.   :yes:

Cap'n Ron. . .
Cap'n Ron. . .


There are two types of people in the world...Those who put people into categories...and those who don't.

andyb

#12
May 07, 2014, 10:55:13 PM
Quote from: Capn Ron on May 07, 2014, 09:22:09 PMI rarely take chances and try to stay well within the limits of mortality.  

I read that as morality. 

I'm not sure it changes things too much. :)

Capn Ron

#13
May 07, 2014, 11:25:05 PM
Quote from: andyb on May 07, 2014, 10:55:13 PM
Quote from: Capn Ron on May 07, 2014, 09:22:09 PMI rarely take chances and try to stay well within the limits of mortality.  

I read that as morality. 

I'm not sure it changes things too much. :)

:rofl:  Mortality is a binary function...Morality can fall anywhere on a sliding scale...Where I fall depends on who you ask, I suppose.  I do have a rev limiter, but it might be set higher than others.  :biggrin:

Cap'n Ron. . .
Cap'n Ron. . .


There are two types of people in the world...Those who put people into categories...and those who don't.

andyb

#14
May 08, 2014, 01:33:25 AM
Also, more on topic:  Didn't the home market (JDM) FJ11's have a connection to the dash for the top speed limiter?
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