Which coils should I get

[IcyHotUrBeanBag]

Dyna Dual Output 3.0 Ohm Coils (pair) DC1-1 DYDC1-1

or

Ignition Coil 4 Ohm Dual Output w/angled caps

I've read in some places that the green 3 ohm coils are a waste on my bike.

[Nessism]

I'd get the Dyna green coils, assuming your bike needs them. I wouldn't change the coils unless the old ones are bad though.

First thing is to make sure you have full battery voltage getting to the coils. Voltage loss in the harness often knocks down coil voltage to the point of causing weak spark.

Next thing is to check the plug caps. The resistance spec is listed in your service manual. Also check the coils primary resistance.

Last thing, if everything checks out, is to snip off a small piece of the spark plug wire before you screw the caps back on. This assures there is good continuity between the wire and the cap.

Last resort is change the coils.

[IcyHotUrBeanBag]

Next thing is to check the plug caps. The resistance spec is listed in your service manual. Also check the coils primary resistance.

I've checked my manual and can't find those spec's. All i can find is Ignition Timing Spec's and i don't understand them. It says:

15° BTDC below
1,400-1,800 rpm

40° BTDC above
2,250-2,450 rpm

If I stick my voltometer sticks into the coil lead what range should I expect to see?

Any help much appreciated

[Nessism]

The factory Suzuki service manual has the specs. Get your free download off Basscliff's website.

[IcyHotUrBeanBag]

The factory Suzuki service manual has the specs.

Ok... I must not be seeing them. I have the manual, if anyone could help I've looked in: Ch 2 Troubleshooting Ch3 Lube, Maintenance and Tune-up Ch7 Electrical System and Ch 1, 11, 12 ,& 13

[Tom R]

As Ed stated above, don't waste your money putting these on a stock engine, you won't see any noticeable gains. The stock coils produce plenty of voltage.
I managed to gain around 1.6 volts going into my coils by cleaning the connections in the wiring harness - that produced a noticeable difference in starting.

[mrbill5491]

Might want to look at the ACCEL coils. Good coils at a decent price.

[althomas101]

If your bike has points in it you wouldn't want to use 3 ohm or less coils or you'll be constantly replacing points sets. I have heard a lot of bad press that the Dyna coils don't last, Accell coils are cheaper and have to my knowledge good reliability.

[OldVet66]

I have heard a lot of bad press that the Dyna coils don't last, Accell coils are cheaper and have to my knowledge good reliability. __________________

What planet is this on? No doubt Accell is good, but so is Dyna.