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Message started by Dee on 10/12/10 at 06:51:15

Title: Bike went POP...then no power!???
Post by Dee on 10/12/10 at 06:51:15

bike went POP...no power ???
Today at 14:49:25 HI, was on way home from a 6 day-800 mile trip all up thru northern Pa & NY. Stopped to gas up in Leighton PA just before turnpike on way home. I turned on the key..turned on the on switch...hit the starter button & heard a POP way louder than a backfire. Then had no power at all!! Had help from a very nice stranger, who is now my friend. What we figured out is that when the key is turned on, the system is ground out. We found the fuses...2 20 amp & they are fine. I called my local dealer/service guys ..Bromelys in Trevose for some help, but they had no help to offer. So she came home in the back of a truck. Is this a common problem & any help would be appreciated. I put over 20,000miles on my bike in the past 4 yrs & have kept in excellent condition & am baffled here!! Thanks!

Title: Re: Bike went POP...then no power!???
Post by Serowbot on 10/12/10 at 09:50:39

I think this one requires the back to basics approach...
Check for spark...
Check for fuel...
Check for compression...
Follow the trail from there...

Title: Re: Bike went POP...then no power!???
Post by Yonuh Adisi on 10/12/10 at 10:03:39

Sounds like something that had happened to me once. Check to see if the drive belt had rubbed any wires stripping the insulation. That was my problem.

Title: Re: Bike went POP...then no power!???
Post by verslagen1 on 10/12/10 at 11:52:59

Lights, smoke, no action?

Lights on? then the battery and wiring is still good.
Check brake, signals and gage lights.

Fuses good, double check, sometimes they blow off to the side and may look good unless you look real close.

Does the pop repeat? or is a one time thing?

I think you'll find it in the starter circuit. I don't like the way every thing is pinched in with the airbox. Could even be the starter.

I'd take the tank and seat off and give everything a close inspection. Look for overheated insulation.

Title: Re: Bike went POP...then no power!???
Post by Dee on 10/12/10 at 11:58:32

I started at the basics....I am checking all the wires now. I removed covers around the belt & don't see any wires. It has to be a wire that is bare because battery gets 12volts till I turn key on, then none. The key was left in the bike in the on position in ride home in back of truck, so is now dead & I have to remove to charge it. Then back to suare one. thanks

Title: Re: Bike went POP...then no power!???
Post by Dee on 10/12/10 at 12:00:35

No lights....even tried to push start. No power at all! Took seats, side covers off, found the fuses which are good.

Title: Re: Bike went POP...then no power!???
Post by verslagen1 on 10/12/10 at 13:58:17

I think you have a short. a major short.
A short so big when made goes pow to rival a savage backfire.
check the power lead to the starter.
If you have an ohm meter, remove the lead to the starter and check for a short. Then check the starter, only it's supposed to be low ohmage so check clymers as to what it should be.

Title: Re: Bike went POP...then no power!???
Post by Dee on 10/12/10 at 17:18:35

Thanks, I have the battery charging...will check out the starter tomorrow, I have to get a meter from work.

Title: Re: Bike went POP...then no power!???
Post by Trippah on 10/12/10 at 18:13:04

I hate to ask,but did you get gas just before..perhaps you might want to check if was gas or deisel you pumped.
Did it once with a car many years ago.. :(

Title: Re: Bike went POP...then no power!???
Post by Serowbot on 10/12/10 at 19:07:00

66405B4242535A320 wrote:

I hate to ask,but did you get gas just before..perhaps you might want to check if was gas or deisel you pumped.
Did it once with a car many years ago.. :(

... and it made your lights go out?... ;D...

Just kidding,... I miss parts too... ;)...

Title: Re: Bike went POP...then no power!???
Post by Trippah on 10/12/10 at 19:46:37

and the older I get the more better I am at missing things. ;D

Actually, i was still back at the pow - then nothing step. The natural thing to do then is crank the starter, wearing down the battery that little bit.

Title: Re: Bike went POP...then no power!???
Post by Dee on 10/13/10 at 07:29:01

HAha It was gas...After the POP...no power..no lights, signals , nothing. Was very strange. A nice guy had many tools & my battery had full charge, with key off, but nothing registered when key was turned on. Was no option to wear out the battery, wouldn't even push start. I am getting a new starter in it tomorrow, hopefully that is the problem. Am crossing fingers!! Still lots of riding to do!!

Title: Re: Bike went POP...then no power!???
Post by bill67 on 10/13/10 at 08:26:20

You can have new brushes put in starters.

Title: Re: Bike went POP...then no power!???
Post by RidgeRunner13 on 10/13/10 at 08:36:27

Get your battery tested. The starter will not cause a no lights no power situtation. Even if the starter is bad, you should have lights, horn, etc. and a LOUD click from the starter solenoid.

No power to anythiing Is a BAD battery OR cable connections. A battery can show a full charge & not be able supply the Amps to even power the lights.

Get the battery tested & check your cables at both ends for corrosion. 8-)

Title: Re: Bike went POP...then no power!???
Post by Serowbot on 10/13/10 at 09:57:46

Some riders trigger intentional backfires by flicking the kill-button off for a second, then putting it back on...
"Kaa-pow!"...
The extra loud pop you heard, could be a similar thing...
... a wire somewhere shorted, killing the spark, and building up some excess fuel in the exhaust pipe, and "Kap-pow!"...

Just saying that the noise may be just a symptom, and not anything broken or damaged...
... a simple electrical short could cause it... ;)...

Title: Re: Bike went POP...then no power!???
Post by Dee on 10/13/10 at 11:04:08

Thanks for all the info! I called my local dealer/service shop...Bromelys in Trevose Pa at time of trouble....am so disappointed at the lack of help! But they did tell me to check fuses even tho they couldn't tell me where they were LOL I found them tho & they were fine.This forum could almost put them out of business!!
The battery is going in , fully charged after work & have found..thru this site, the service/cymermanual & will be testing the starter & all the wires!
Thanks & will keep u all posted! I love this bike....2001 ls650 that I bought on ebay 4 yrs ago with 493 miles! I now have 20880 miles and hope to put many more on her!

Title: Re: Bike went POP...then no power!???
Post by RidgeRunner13 on 10/13/10 at 12:40:51

20880 miles? Has the timing chain adjuster been checked?

You might take out the slotted plug in the left side cover make sure the engine is not locked up. Turn the crankshaft the same way the wheels turn, ccw, looking from the left side. Taking the spark plug out will make it easier to turn but you should be able to move it with the sp. plug in. DO NOT turn it backwards!!

If it will not turn, you need to remove the Right side cover & check the timing chain adjuster. With your mileage, it should be checked anyway. 8-)

Title: Re: Bike went POP...then no power!???
Post by verslagen1 on 10/13/10 at 15:01:53

003B36353700273C3C37206361520 wrote:

Whoa yeah!

Take the valve inspection covers off too. While turning the crank, check to see if they are moving. Don't force it.

Only reason not to go backwards is to avoid engaging the starter. Which make it stop too. Or twang if you go that far.

Title: Re: Bike went POP...then no power!???
Post by verslagen1 on 10/14/10 at 20:30:14

how's it going Dee?

Title: Re: Bike went POP...then no power!???
Post by Trippah on 10/24/10 at 20:11:09

bump.

Title: Re: Bike went POP...then no power!???
Post by T Mack 1 - FSO on 10/25/10 at 13:30:18

Dee,
Sorry I've been absent from the site lately. Busy at work.

I'm in the Allentown PA area. If you need help, PM me. I'm pretty good trouble shooter.

One question, how old is the battery????

Title: Re: Bike went POP...then no power!???
Post by Digger on 10/26/10 at 21:15:06

750C6C40424A10210 wrote:

.....One question, how old is the battery????

Good question. Back in the day, a known failure of Yuasa batteries was accompanied by a loud POP.

IHTH!

Title: Re: Bike went POP...then no power!???
Post by Phelonius on 10/26/10 at 22:36:22

POP! Like a weasel?
If the engine still spins when you press the starter, remove the spark plug and hold a finger tightly in the spark plug hole. If no compression is felt when the engine spins, you may have holed a piston or damaged a valve.
If this is true, prepare to spend some money on parts and labor.

Phelonius :-/