So who wants to know about the green Mikes Coils?

[TomRodgers]

Anybody use Accel coils? or are the green guys better?

[dbeardslee]

Tom - I looked for info on the Accel Super Coils but was unable to find the output voltage specs (accel part #140403). I can tell you that the mikes green monsters put out 45KV with 12.5v input, and 75KV with 14v input. The charging system on an XS should put out 14.2v at 2200 rpms, so for the most part you should be getting the higher output voltage. To do a good comparison you really need to find out what the output voltage is on the Accels your looking at. Either one should be a big improvement over the stock coils which only put out around 15kv IIRC.

[TomRodgers]

reason being, the stockers seem to be okay for now. i have 2 bikes i want running by spring. i have the accel coils sitting in my tool box. bought them off ebay last summer for 25 bucks. like you said, they will be better than the stockers. may end up getting the green guys for the other bike...

[TomRodgers]

[/IMG]

did this work?

[DGXSER]

Only if your intention was to post a picture of your bike.

[TomRodgers]

yeah...im at work. wanted to see how/if it would work....

thats BlackSunshine....about to get worked over this winter....

[bikerphil]

Anybody use Accel coils?

Yep, I run them on my 79 Special. I don't know the voltage output but they are super hot. Very happy with them. 140403 is the P/N for the pair of 3 ohm coils.

[TopCatGr58]

Hey Tom,

Like Phil said, Accel makes many different models, and you'll want to be sure you have the correct style for our bikes. IF you got the other kind that has only 0.7 ohms for the primary side, then they would be for a CDI system, and will FRY the TCI on our bikes, and you'll have a dead bike!
T.C.

[XJOK2PLAY]

Dbeardslee,

I have a question...

Does the coil upgrade seem to have any effect on helping the XS/XJ start faster?

I've noticed most seem to start pretty good cold, but after they warm up, they crank a lot to start... even when they're in good tune... and some getting mid 40's on mpg.

Heard somewhere here a while back that hotter coils seemed to help w/ that issue.

What do you think?

[Geezer]

Mine will start just fine even when it's too cold to ride. The ignition and carbs are all stock...

Geezer

[dbeardslee]

Quicker starts are usually the first thing you notice with the hotter coils. I can let mine sit for weeks and it starts with a tap of the starter switch. You'll also notice a more positive throttle response. You'll get a little better gas mileage too, if you can keep from getting carried away with that throttle response .

[XJOK2PLAY]

My XJ has always started great when cold. But until I reworked & cleaned up the carbs and installed the Dynojet...when it would get hot after say a 30 minute ride or so, trying to restart it would require a lot of cranking. It has improved a lot since all the carb work... starts a lot better. But occaisionally it'll have to crank some...

Then one time on a trip, I heard Bohn's start when hot... took forever, but always started. Then I heard Miles's Special... several I've noticed do that.
Seemed to be kind of a common problem.
But most were running stock 30 yr. old coils that were doing that, too.

Thanks for the tip... if mine keeps taking spells of long cranking when hot, I may swap my coils out as well & see if that cures it.

Does make sense when you think about it... stock 15,000 v compared to 45,000...

[dbeardslee]

You may have been running lean if the motor was getting too hot. That will make them harder to start, and harder to keep running. Then again, a rich problem will usually get worse when the engine warms up. Either way it sounds like your problem's in the carbs, not the coils. Mine starts pretty much the same - hot or cold.

Have you ever put a colortune on it? One of the things I like about the colortune is that it can tell you if the jetting is right. If you cannot adjust through the entire color range (yellow, bunson blue, white-blue) chances are the jets aren't right. What do your plugs look like when you pull them?

[XJOK2PLAY]

It used to run very rich, before I installed the dynojet.
Now they look much better... greyish... not black as before.

I used to run 87 octane and had no problem.
after Dynojet changes, I now need premium to keep the pings away at Turnpike speeds. Incredable differences.

MPG increases are way up, too.

I can tell it's leaned it out a lot.

When it would hard start when hot, I'd have to crack the throttle... which would add more air to lean it. I know that's why it's gotten better.

But just like Bohn's... that bike's tuned to the max... he gets mid 40's on average... yet it's very hard to start after it gets warmed up.

Haven't had access to a colortune yet... but have carefully synched them recently. Runs a whole lot better than before.

[dbeardslee]

The other thing you might do is put an infrared thermometer on your motor and see what kind of temperatures your running at. HF sells them pretty cheap. I put mine on my header pipes and they're usually somewhere between 220 and 250 degrees depending on the ambient temperature. Might give you an indication of whether or not your motor is running hot. JAT