'78 kz 650sr up and died

i was riding in the isle of vashon TT, hot day, just sat in line at a check point and got on it for a while 1/3 mi. and heard a slight poof, seemed to come from under gas tank? all went black/died. no electrical at all. thought maybe battery took a dump, put a new, charged one in and still nothing. motor is not siezed. [friend behind me said he saw a puff of blue smoke] where do i start? the 3 fuses in the fuse box look fine. help! thx, john.

Under your gas tank you say? Did you check your coils?

Do not trust the fuses to be good by the look of them. Measure the voltage across them. I have seen them look to be fine but bad anyway.

Fuse And Fuse Holder Designations

1. The older Kawasaki’s use a glass tubed fuse with the designation of AGX 1” long. Most good auto parts stores can get them for you. They are ¼” in diameter.

2. The more common AGC is 1 ¼” long and may not fit the smaller fuse clips. Again, ¼” in diameter.

3. To clean and polish the fuse clips, I use a cotton swab(Q- Tip) and some Brasso metal cleaner or Turtle Wax Chrome Polish. I suppose any good metal polish would work.

4. These fuses can fail internally but look good, only by removing them from the clip and electrically continuity checking with either a self powered test light, or a multimeter set on OHMS can they be determined to be in good shape.

5. A physical inspection of the metal end caps for tightness will tell you if the fuse is serviceable.

6. Most modern motorcycles are now using the automobile “Blade” style fuse with the designation of ATC or ATO.

7. The reduced sized “Mini” Blade style fuse holder uses the ATM size of fuses.

8. If the fuse and fuse holder overheat, it could soften or anneal the grip of the clip, it might require squeezing the clip to restore the tightness.

9. A list of where to purchase “Blade” style fuses and holders:

www.waytekwire.com order.waytekwire.com/productdetail2/M50/...20%20%20%208%20FUSE/

www.rallylights.com www.rallylights.com/detail.aspx?ID=765

www.delcity.net/store/6!way-fuse-blocks/p_10822.a_1

10. A source for the glass tubed AGX fuses:
www.boatownerswarehouse.com/browse.cfm/2,4986.html

11. Most boating supply stores can get you these fuses too.

If not already done, would also assure integrity of connection where battery ground cable attaches to rear of engine.

Good Fortune!

i will have to recheck the glass fuses w/ my volt meter. i did clean the ground/block wire a few years ago and im thinking its still ok. not sure on the coils, that was one of my 1st thoughts when it happened. power to the gauges died at the same time the bike did. is there a 'fuseable link'or something like it that could blow?