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Message started by way2fastmichael on 01/27/16 at 17:49:28

Title: After running, will not start back up.
Post by way2fastmichael on 01/27/16 at 17:49:28

Hello everyone, glade to be here. I just got me a 1999 ls650 at a steal. Got it home rode it around for a while, several days of just playing with it. Then I parked it for a while, maybe two weeks. Went to start it again to show a friend, it started and shut off right away. I tried again and could not get it to start. Thought i may have flooded it, Smelled gas really bad. So back in the shop it goes. Took battery out as I thought it may be low or dead. Battery is good. Showing 12.89 volts, while charging shows 14.something. put volt meter on the starter and ground and fired it up and showing 10.56 volts. Don't think it's the battery. Still smelling fuel. Wanting to make a bobber I started to take the fender , seat, tank ,ect, and found that the air box has about 1 inch of fuel in it. Kinda think the not starting is due in part of that. Looking some knowledge from you guys.
Thanks for any help I can get.
Michael mccroskey
North carolina.

Title: Re: After running, will not start back up.
Post by Kris01 on 01/27/16 at 18:30:30

Stuck float? Try rapping on the bottom of the carb to free it or, better yet, remove the float bowl (after draining it) and unstick the float.

Title: Re: After running, will not start back up.
Post by justin_o_guy2 on 01/27/16 at 20:02:04

Gas in the air box, you better check the oil. Gas Can get in the crankcase.
Knowing that you have a carb problem doesn't make the battery good.
10.5 while starting is, IIRC, too low to fire off the CDI and get the plug to fire.

Pulling the plug and holding it by the engine won't prove that it's firing while the starter motor is working to create compression.
A spare plug, hooked up to the plug wire, then the battery is loaded just like you were really trying to start it.

If you do pull the plug, clean the crud out down in the pit the plug sits in first, so nothing can fall in.

Title: Re: After running, will not start back up.
Post by Dave on 01/28/16 at 03:15:48

The stock vacuum petcock is prone to failure....the diaphragm can dissolve with the ethanol fuel, and it then flows fuel down the vacuum line. This can flood the engine, and it can even fill the crankcase up with gasoline and dilute the oil.

You need to test the petcock. Here is the link.
http://suzukisavage.com/cgi-bin/YaBB.pl?num=1251932429/1

And you need to check your oil level and make sure the oil has not bee diluted with gasoline.

Title: Re: After running, will not start back up.
Post by justin_o_guy2 on 01/28/16 at 03:29:36

Yes, you Can test it. They go bad. Yours is about 17 years old.

Title: Re: After running, will not start back up.
Post by stewmills on 01/28/16 at 10:19:40

37292C2C29212D2D2323322F332B2539400 wrote:

So back in the shop it goes.

Hope this is YOUR shop, not the motorcycle dealer/shop!

If you think it's a petcock issue, you can get the raptor if you want to go that route, or you can get a petcock rebuild kit for about $20 if you want to maintain the stock vacuum set-up. That's what I did, and I also made sure to replace the stock vacuum hose off the petcock. I had no visible air leaks, but was getting intermittent surging and after replacing the hose it cleared up (knock on wood). Hoses go bad and that vacuum is critical to opening the valve to let fuel flow out.

Title: Re: After running, will not start back up.
Post by way2fastmichael on 01/28/16 at 10:59:49

No sir I ment back in my shop behind the house. I was going to do the pet thingy upgrade but really would like to keep it stock as not wanting to have to turn it on and off all the time.

Title: Re: After running, will not start back up.
Post by Dave on 01/28/16 at 11:09:59

4C525757525A56565858495448505E423B0 wrote:

I was going to do the pet thingy upgrade but really would like to keep it stock as not wanting to have to turn it on and off all the time.

It becomes instinct after a while.....just like putting the kick stand down and turning the key off. (However....I started doing that in 1969, so it has become pretty well a habit by now).

I turn my Petcock off at the intersection down the street....just after I round the corner. When I pull into my driveway the bike is running out of fuel....that way if I don't ride for a while - I don't have any fuel in the float bowl that can turn foul and corrode the carb.

Title: Re: After running, will not start back up.
Post by Suzukisavvy on 01/28/16 at 13:09:37

Check to make sure the float isn't saturated with fuel. I have a 1998 savage and the float got fuel on one side and it sank and wouldn't come up and fuel rushed out the hoses. Your carb breathing tubes may be clogged letting fuel get into the air intake. A new float is around 25 no biggie easy replace did it when I was 16 now 18. Good luck, its frustrating.

Title: Re: After running, will not start back up.
Post by Art Webb on 01/29/16 at 08:11:04

I put the Raptor petcock on mine and NEVER turned it off, the 3 years I owned it
if your needle and seat work right they won't let the carb overfill
still, turning it off is a good idea, just in case
On this point, don't leave it stock, the Raptor is the better idea, hands down, as you will never have to worry about the stocker deciding to quit working miles from home