mar
Hero member
- Location
- California USA
I just received my new ignition. Is there any trick or advice on the install?
Thanks, Myke
Thanks, Myke
DNC ignition 180 ND
- Thread starter mar
- Start date
Dellortoman
Hero member
- Location
- Tasmania, Australia
If it really is a DNC (as distinct from a DMC), then you're probably on your own 
Assuming it's a DMC, did you get any fitting instructions with it? If not, I'm sure someone here can email a copy to you.
You also need a pair of ignition coils (one single and one double) and depending what vintage your 180 triple is, you may also need a second stator coil for the alternator. Once you have all those components, it's just a matter of mounting them, hooking up the wires as per the diagram, and selecting an advance curve. When that's done, hit the starter button and enjoy.
I'd suggest you mount the DMC unit somewhere that has a bit of ventilation. The previous owner of my bike must have thought the unit was made of egg shells because he wrapped it up with lots of rags and stuffed it in the tail piece cavity. It was well protected from vibration but it cooked itself. It now lives under the seat.
Cheers,
Cam
Assuming it's a DMC, did you get any fitting instructions with it? If not, I'm sure someone here can email a copy to you.
You also need a pair of ignition coils (one single and one double) and depending what vintage your 180 triple is, you may also need a second stator coil for the alternator. Once you have all those components, it's just a matter of mounting them, hooking up the wires as per the diagram, and selecting an advance curve. When that's done, hit the starter button and enjoy.
I'd suggest you mount the DMC unit somewhere that has a bit of ventilation. The previous owner of my bike must have thought the unit was made of egg shells because he wrapped it up with lots of rags and stuffed it in the tail piece cavity. It was well protected from vibration but it cooked itself. It now lives under the seat.
Cheers,
Cam
Laverdalothar
Hero member
- Location
- Germany
...and while you are at it, make sure the timing-marks on your bike are correct before you set everything up for the first time...
Many are out several degrees...
Many are out several degrees...
Rob
Hero member
- Location
- Midlands, UK
Myke - I assume your reference to '180 ND' means a series II bike with ND alternator? If so, there is no need to worry about changes to the alternator stator plate!
If you're talking about ND HT coils instead (i.e. BTZ ignition), installation is quite straightforward. The HT coils are retained - just remove the ballast resistors. Most people remove the 2 Bosch silver ignition amplifier boxes and fit the DMC unit there. It needs to be away from the ignition HT components to avoid interference, and somewhere cool as Cam says.
Take care over the wiring and make sure you connect the earth directly to the battery negative. A little silicone grease on the connector plugs will help reliability. Timing can be easily set as described by sfcpiet here
If you search for 'DMC installation' and 'Witt installation' you will find plenty of ideas and suggestions! I assume you have installation instructions - an abbreviated version is here http://www.iloc.co.uk/gallery/albums/userpics/10001/DMC_2_fitting_instructions.pdf
If you're talking about ND HT coils instead (i.e. BTZ ignition), installation is quite straightforward. The HT coils are retained - just remove the ballast resistors. Most people remove the 2 Bosch silver ignition amplifier boxes and fit the DMC unit there. It needs to be away from the ignition HT components to avoid interference, and somewhere cool as Cam says.
Take care over the wiring and make sure you connect the earth directly to the battery negative. A little silicone grease on the connector plugs will help reliability. Timing can be easily set as described by sfcpiet here
If you search for 'DMC installation' and 'Witt installation' you will find plenty of ideas and suggestions! I assume you have installation instructions - an abbreviated version is here http://www.iloc.co.uk/gallery/albums/userpics/10001/DMC_2_fitting_instructions.pdf
Hello Myke
I fitted a DMC to my Jota series 2, a 180 ND as you refer. (not my track bike)
I dumped the original coils as they were breaking down as shown on a dyno run and fitted Suzuki coils, also Nippon Denso but a couple of generations newer.
1 x TL1000 coil + 1 x Bandit coil
I'm not going against Brads advice but if you are getting rid of a rotting Ignition system, you might want to consider the coils are past their best too.
Here's a few pics for ideas on Witt fitting and coil replacement. Coils in this instance were fitted to a series 1 bike but same installation practise applies although there are many ways to skin a cat !
I dump the original HT lead also and fit new, which is more involved on the Twin coils but still easy if care is taken.
Rob
I fitted a DMC to my Jota series 2, a 180 ND as you refer. (not my track bike)
I dumped the original coils as they were breaking down as shown on a dyno run and fitted Suzuki coils, also Nippon Denso but a couple of generations newer.
1 x TL1000 coil + 1 x Bandit coil
I'm not going against Brads advice but if you are getting rid of a rotting Ignition system, you might want to consider the coils are past their best too.
Here's a few pics for ideas on Witt fitting and coil replacement. Coils in this instance were fitted to a series 1 bike but same installation practise applies although there are many ways to skin a cat !
I dump the original HT lead also and fit new, which is more involved on the Twin coils but still easy if care is taken.
Rob
mar
Hero member
- Location
- California USA
Yes you are right. It is a DMC ignition. My bike is a series II. I was speaking with wolfgang and he feels the existing coils will be fine. he suggested to check the ohms. They should be between 2.5 and 4. he also suggested to set it at curve 11 or 12. My plan at this point is to install it and to conduct dyno runs to make sure it is working best.