powered by:
January 23, 2025, 10:44:02 PM
Welcome,
Guest
. Please
login
or
register
.
1 Hour
1 Day
1 Week
1 Month
Forever
Login with username, password and session length
News
:
Welcome to the DMF
Home
Help
Search
Login
Register
Discussion Boards
Introduce Yourself
FAQs and Policies
General Monster Forum
Remembering our friends...in Memorium
Riding Techniques
Tutorials
Tech
Accessories & Mods
Gear
Racing & Trackdays
Stolen Motorcycles
No Moto Content
Board Tech Issues
Local Club Boards
BOMb
RCP
Sponsors
Valley Desmo Service
California Cycleworks
MotorcycleGear.Com
Monsterparts
Minor Sponsor Board
Sponsor Info
Flea Market
Monsters for Sale
Monsters Wanted
Other Bikes
Parts for Sale
Parts Wanted
Gear for Sale
Misc for Sale/Wanted
Ducati Monster Forum
>
Moto Board
>
Tech
(Moderator:
Speeddog
) >
Coil relocation isolation
Pages: [
1
]
Go Down
« previous
next »
Print
Author
Topic: Coil relocation isolation (Read 2386 times)
RB
Hero Member
Offline
Posts: 618
Coil relocation isolation
«
on:
May 03, 2022, 06:40:55 AM »
Do the factory 2006 S2R coils need to be isolated from ground, meaning, not mounted to the chassis directly?
Years ago I swapped to pod filters and relocated my coils to the chassis mounts I built. I believe that both my coils have now died. I had a code that a coil was misfiring, but everything I read said that the coils rarely go up at the same time and that the fault codes rarely point to the actual issue, so…. I have tested the coils with a coil tester and both coils create weak and inconsistent spark. All connections tested for continuity, ignition relays just replaced, no shorts in the system detected. The bike was not running very well last season and this lead me to checking my coils.
My bike has 45k miles, original coils, recently replaced plugs and wires.
I see the CA-Cycleworks coils require ground isolation, I never read anywhere that the factory coils were the same.
Anyone know the answer?
Cheers
Logged
S2R
FLAT ORANGE
stopintime
Hero Member
Offline
Posts: 9059
S2R 800 '07
Re: Coil relocation isolation
«
Reply #1 on:
May 03, 2022, 08:30:29 AM »
The one on it's own (broken twice!) bracket by the passenger left footpeg has worked fine for me, mounted with zip ties. I'm not sure if that's an answer, but I can add that the first time it caused the bike to run on one cylinder when it was just hanging there by the wires.
Logged
252,000 km/seventeen years - loving it
RB
Hero Member
Offline
Posts: 618
Re: Coil relocation isolation
«
Reply #2 on:
May 03, 2022, 09:06:36 AM »
Thanks for the response. Looking at my handy work, one coil was isolated and the other was chassis mounted. I never noticed any issues for years. It appears that the S2R mounted the coils on the plastic airbox, which would keep them isolated, I’m just not sure if this is necessary. I bought a used set of coils from fleabay(off a 2018 scrambler) in hopes this will show the coils were bad.
Logged
S2R
FLAT ORANGE
RB
Hero Member
Offline
Posts: 618
Re: Coil relocation isolation
«
Reply #3 on:
May 05, 2022, 08:10:14 AM »
Bumping this for more eyes as I can’t find a clear answer.
Logged
S2R
FLAT ORANGE
Howie
Post Whore
Offline
Posts: 17328
Re: Coil relocation isolation
«
Reply #4 on:
May 05, 2022, 10:59:56 AM »
Not sure, but I think the only benefit of isolation would be to absorb vibration.
Logged
RB
Hero Member
Offline
Posts: 618
Re: Coil relocation isolation
«
Reply #5 on:
May 05, 2022, 11:22:44 AM »
Thanks Howie, I guess at this point I will try to isolate them from ground as that is how they were from the factory.
Logged
S2R
FLAT ORANGE
stopintime
Hero Member
Offline
Posts: 9059
S2R 800 '07
Re: Coil relocation isolation
«
Reply #6 on:
May 05, 2022, 12:39:03 PM »
Quote from: RB on May 05, 2022, 11:22:44 AM
Thanks Howie, I guess at this point I will try to isolate them from ground as that is how they were from the factory.
Not on the S2R800.
Logged
252,000 km/seventeen years - loving it
koko64
Post Whore
Offline
Posts: 15733
Re: Coil relocation isolation
«
Reply #7 on:
May 05, 2022, 02:44:29 PM »
I've seen later carbed Monsters with factory looms that had extra ground wires connected to the upper coil posts. I've seen earlier Monsters and Supersports without the extra ground wires. However, iirc, I've also read the caution regarding CCW Exactfit coils needing to be isolated due to their particular design, but that might only be regarding certain models. As mentioned, there are injected models that have the coil posts bolted directly to the frame. The carbed Bimota DB4 which runs carbed desmodue coils and Kokusan ignition also has the coil posts bolted directly to the chassis. It must depend on the coil design, packaging considerations, etc
Best put them in the oem location or in the case of aftermarket coils get advice regarding grounding vs isolating from The mfr. The question is are we trying to isolate the coils from heat/vibration or from the chassis/ground to protect from accidental voltage spikes messing with other ignition components? My knowledge is limited, but these are issues that come to mind. Check with a dealership that the Scrambler coils are ok with the location points you have in mind. I've never worked on a Scrambler so don't know how they're mounted.
«
Last Edit: May 05, 2022, 02:52:11 PM by koko64
»
Logged
2015 Scrambler 800
Pages: [
1
]
Go Up
Print
« previous
next »
Jump to:
Please select a destination:
-----------------------------
Introductions
-----------------------------
=> Introduce Yourself
=> FAQs and Board Policies
-----------------------------
Moto Board
-----------------------------
=> General Monster Forum
=> In Memorium...Remembering our Friends
=> Riding Techniques
=> Tutorials
=> Tech
=> Accessories & Mods
=> Gear
=> Racing & Trackdays
=> Stolen Motorcycles
=> Random Cool Pics
-----------------------------
Kitchen Sink
-----------------------------
=> No Moto Content
===> Board Suggestions
===> Fixed Board Issues
=> Stella's Pop
-----------------------------
DMF Sponsors
-----------------------------
=> Valley Desmo Service
=> Ca-Cycleworks
=> New Enough.Com
=> Monsterparts
=> Minor Sponsors
=> Misc Info
-----------------------------
Local Clubs
-----------------------------
=> Monster Women
=> Ducati MOB
=> SoCal Monsters
=> CAM
=> OZ monsters
=> NorthWest
=> NEMHA
=> NYMMC
=> MHM
=> SoCO DOG
=> DFWM
=> MADDOG
=> MOCHA
=> THCM
=> AZDRA
=> M-ROC
=> Central Cal Monsters
=> DOCSF
=> MCMC
=> DDCM
=> DOCTOR
=> Hoosier Hooligans
=> OMHA
=> DOCIA
=> Rising Sun Ducatis
=> MCM
=> NMMR
=> MIA
=> Desmotropic
=> COW
=> MOTH
=> DesmOK
=> Bayou Country Ducati Riders
=> DeVal Mostro
=> Coastal Ducati Club
-----------------------------
Configurators and Calculators
-----------------------------
=> Valve Shim Calculator
Loading...
SimplePortal 2.1.1