Now i know that there are probably other threads and i may catch flak for asking this problem but please humor me.
I bought my 05 about three weeks ago and just today on a long ride in the on position on the petcock it wanted to die like it had no fuel though there is fuel in the tank. I have read that there are lots of people with the same issue but not finding any answer or ideas on how to fix it other than change to aftermarket one or to just run in prime mode. So for those who have had this problem how did you fix it?
when that happens, you need to switch it to reserve, then go to a gas station and fill the tank up. with the shape of the bottom of our tank, it looks like there is more gas in it than there really is.
lol no I had literally just filled about 40 miles before that
if it does it again, try opening the gas cap, and see if that fixes it. if that does the trick, follow the steps in this thread.
http://gstwins.com/gsboard/index.php?topic=41061.0
the fuel starvation issue is generally reserved for the older petcocks.
make sure the vacuum line to the petcock is attached and not cracked.
So i decided to take apart the gas cap and the ball bearing seems to move very freely.
I haven't checked the vacuum line off the petcock yet for cracks just yet but i will. Please keep ideas coming no idea too stupid minus gas in tank lol jk
Quote from: black and silver twin on May 30, 2010, 09:49:32 PM
make sure the vacuum line to the petcock is attached and not cracked.
If i take the vacuum line off the petcock to check for vacuum how much vacuum should i feel?
most engines idle at 20-29 inches of mercury. you wont be able to discern 10 in from 29in without a gauge. but if the line is not cracked or plugged it should be fine.
unfortunately i do not have a vac gauge anymore atleast not where i am at currently. Any other options btw i have only owned this bike for 3 to 4 weeks and haven't gotten to ride it much its my fifth bike and smallest and first Suzuki (started on a Ninja 600 like the one Tom Cruise rode in Top Gun lol). So being I am so new to this GS stuf please if there is something i am missing about them inform me I am a noob to them but not a noob to working on bikes
also make sure the gas tank vent tube is not clogged
Quote from: Novas86 on May 31, 2010, 12:41:18 AM
(started on a Ninja 600 like the one Tom Cruise rode in Top Gun lol).
Just picking nits here, but the Top Gun Ninja was a GPZ900. Well, I read somewhere that it was actually a GPZ750 with 900 markings because the 900 wasn't ready when they shot the movie. Can't find that reference at the moment.
Oh, as for the problem at hand, does the problem happen if you run on 'prime'? That would diagnose a vacuum line problem.
no atleast not on the surface i ran it yesterday that way to get home however on the way to where i was going i was switching between the two and it was still dying. freakin weird right
Had the bike been used on a regular basis before you brought it,if stored it might need carbs,jets cleaning,fresh fuel?
It had been parked for a little bit and the guy i bought it from put i think i was a seafoam in it for he winter but other than that i don't know
I suggest that you drain ALL the old gas out, along with any water or other contaminates that may be in the bottom of the tank.
If it looks and smells good, use it in your lawnmower or something.
Fill the tank with known good gas and try again.
I saw a tank a couple of years ago that had almost 2 inches of water in it.
Worth a try?
Jim
I just checked the vacuum line and it seems good and i pulled it off the petcock line and it is getting vacuum and seems fairly strong like stick to my finger strong i don't have a gauge to test it for certain but any other theories?
cap one of the lines off at the tank, and run a single line from the tank directly to the carbs. that will completely bypass the entire vacuum operated petcock
to test to if its somewhere else in the vac system?
update : I unplugged the vacuum hose to the petcock and it died just as it dies on the highway. which leads me to believe its a vacuum issue. Can someone please explain the purpose of the vac system in this bike cause my r6 used vac for fuel shut off in case of emergency and so did my ninja. so please forgive my ignorance
the vacuum system is used to automatically stop fuel flow when you stop the engine, so you dont have to turn the petcock knob. if the petcock is not receiving vacuum or has a torn diaphragm it will flow little to no fuel, causing most (if not all) of your symptoms.
so does that mean like prime is not affected my vacuum safety what about the reserve?
Quote from: Novas86 on June 01, 2010, 12:46:26 PM
so does that mean like prime is not affected my vacuum safety what about the reserve?
Yes, that's what it means. And "reserve" requires vacuum to operate, just like "on".
So really odd now i took it out of test ride(46mi) on reserve and on but i couldn't get it to repeat the issue. now i am completely lost so someone save me from this menacing issue lol
bump in the hopes that Buddha will grace me with and answer :bowdown:
Quote from: Novas86 on June 01, 2010, 08:37:27 PM
So really odd now i took it out of test ride(46mi) on reserve but i couldn't get it to repeat the issue. now i am completely lost so someone save me from this menacing issue lol
if it only happens on "ON" maybe you can check the tank petcock for blockage/debris? the PRI and RES use the same nipple off the tank petcock but ON uses its own path. if RES and PRI work fine, but ON doesnt. i'd say check the tank petcock.
and check the hoses for blockage too?
i mucked up when i said said on reserve i mean on, reserve instead and no issues.
Questions I am still not clear about:
1] Reserve setting works?
2] Prime setting works?
3] On setting is where the problem is?
Quote from: Novas86 on May 30, 2010, 07:27:10 PM
lol no I had literally just filled about 40 miles before that
4] How much gas did you put in when you filled it?
5] Did you drain
ALL of the old gas and SeaFoam out?
6] What is the farthest distance you have gone without putting gas in?
If you haven't been able to go more than 50 or 60 miles without adding gas, I would still think you have bad gas / water in the tank.
(By the way, Seafoam is a good cleaner, but not a good gas preserver for storage purposes.)
Quote from: Toledo Jim on June 02, 2010, 10:40:58 PM
Questions I am still not clear about:
1] Reserve setting works?
2] Prime setting works?
3] On setting is where the problem is?
Quote from: Novas86 on May 30, 2010, 07:27:10 PM
lol no I had literally just filled about 40 miles before that
4] How much gas did you put in when you filled it?
5] Did you drain ALL of the old gas and SeaFoam out?
6] What is the farthest distance you have gone without putting gas in?
If you haven't been able to go more than 50 or 60 miles without adding gas, I would still think you have bad gas / water in the tank.
(By the way, Seafoam is a good cleaner, but not a good gas preserver for storage purposes.)
1. right now everything works I did not test reserve when it did it
2. Prime woks
3. only one i was able to test
4.it was full like 3.24 ga according to slip mind you it had some left when i filled
5. all gas had been out
6. 214 miles and that is this cause i haven't had it long enough besides one fill up
Okay, then I am out of ideas. :dunno_black:
Good luck.
p.s.: If you really want Buddha's help, you could pm him with a link to this thread. :thumb:
just bumping up for some attention perhaps :woohoo: :bowdown: :thumb: :nono:
Yesterday for the first time I got this fuel starvation problem on the freeway going 130kmh,
it died down and prime didn't work, luckily some nice man pulled over with a van and gave me a lift home :thumb:
well apparently my problem is fixed. I found a vacuum line that was like slightly pinched. and please correct me if i am wrong but i am guess that the vacuum line being pinched slightly cause the lack of adequate fuel to be getting to the bowl for the speed because fuel consumption increases with speed But that is my guess? any thoughts?
Quote from: Novas86 on June 06, 2010, 10:13:35 PM
well apparently my problem is fixed. ..snip..
Glad you figured it out. :thumb:
ok so i guess i lied it died again yesterday and now i am completely now lost so crap lol
I've found it possible to squash the petcock-carb fuel line with the airbox if hoses cross under it. Should affect pri as well I guess, but still worth looking at?
Quote from: Ugluk on June 09, 2010, 11:37:00 PM
I've found it possible to squash the petcock-carb fuel line with the airbox if hoses cross under it. Should affect pri as well I guess, but still worth looking at?
can this still happen with the lunchbox?
No way. I missed that you had one.
Cheers
Quote from: Novas86 on June 09, 2010, 09:50:15 PM
ok so i guess i lied it died again yesterday and now i am completely now lost so crap lol
What speed were you traveling at when it died, and for how long ?
Quote from: bigfatcat on June 10, 2010, 11:17:07 AM
Quote from: Novas86 on June 09, 2010, 09:50:15 PM
ok so i guess i lied it died again yesterday and now i am completely now lost so crap lol
What speed were you traveling at when it died, and for how long ?
65 to 70 about ten to fifteen minutes