has anyone played with ignition coils (139qmb) By cdoublejj (Read 792 times)

[cdoublejj]

Ss with everything 139qmb related if it has the words "performance" on it, it's probably a load of a bull's garden fertilizing crap. Some i'm curious if anyone has played with ignition coils and got a fatter or stronger spark?

[cyborg]

Not i

[noobscoot69]

From what i've read the "performance" ones tend to actually provide a weaker spark than stock.

[cdoublejj]

anyone played with CDIs? i hear the stock retards under X RPM for easier starting and advances over X RPM for performance. I thought i read there are adjustable aftermarket CDIs.

[cyborg]

Talk to dan at martins mopeds,,he sells a true advancing cdi,,,read about another one ,,may be parts for scooters,,,it was a while ago so I may be wrong about that

[lostforawhile]

you can get name brand coils for bikes with CDI type ignitions from ebay, and they should work, if it's a transformer type coil(vs an inductive coil) ,some guys have run coil on plug coils from the junkyard and they worked fine. A name brand coil is going to be far better quality then some no name chinese junk coil

[lostforawhile]

this is what I got, i'm having stator issues though so I can't tell you if it runs yet, but it should be fine, the only thing I had to do was trim the smaller rubber lip off the end of the boot, because the 139QMB has such a short plug, it grounds to the frame instead of a ground lug, so the mounting point has to be clean of paint, I mounted it to the same tab as the original coil

www.ebay.com/itm/Ignition-Coil-Yamaha-ATV-BRUIN-350-2WD-4WD-2004-2006/270663553238?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2057872.m2749.l2649