nklr rode a zx12r today

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jwishart2001
Posts: 4
Joined: Thu Apr 18, 2002 1:34 pm

apparent fuel starvation problem

Post by jwishart2001 » Thu May 30, 2002 12:05 pm

I was coming home from work the last two evenings on my 2000 KLR650 and had an apparent problem with fuel starvation. It's about a 20 mile drive and this occurred 4-5 times on the way. I was running along normally at speeds from 35-65 MPH with a few stoplights in between and suddenly seemed to run out of gas. The petcock was on main and when I checked the tank, I had plenty. I put it on reserve and tried to restart. After a couple of minutes, it restarted OK and run fine for a few miles then the same sequence occurred again several times. I tried both petcock settings, main and reserve and that didn't seem to make any difference. I also opened the tank to check the fuel level each time. Setting the choke to rich also seemed to help get it running initially, but I still had to close the choke after it started. All the hoses at the carb were connected and also the line on the back of the gas tank. I checked that when I got home. I have not removed any of the lines to check for clogging or pinching yet. The weather was about 75-80 degrees F. and dry. This did NOT happen on the way to work either morning, but only on the way home. What should I be checking? I am suspecting that it is something to do with a vacuum line being plugged or pinched or disconnected, but haven't got that far in checking yet. Would a blocked fuel tank vent or tank pressure relief be a candidate? How would I check that? What does that line at the rear of the fuel tank do? How about fuel line routing (I don't have a fuel filter installed)? I am also suspecting moving the carb around when I drilled out the pilot mixture screw plug may have contributed to this problem, but it ran fine for about 50 miles or so at fairly low speeds on a couple of trips after I did that mod last weekend. Mods I've done include the carb vent T-mod and setting the pilot screw at 1.5 turns out. Prior to this problem, it had been running great with fuel mileage at 57-60 MPG. The bike has about 6K miles on it. I got it used in April and have put the last 1K miles on it. Any troubleshooting suggestions would be greatly appreciated. Thanks, John Wishart 2000 KLR650

Zachariah Mully
Posts: 1897
Joined: Fri Apr 28, 2000 7:50 am

apparent fuel starvation problem

Post by Zachariah Mully » Thu May 30, 2002 12:13 pm

On Thu, 2002-05-30 at 13:05, jwishart2001 wrote:
> I was coming home from work the last two evenings on my 2000 KLR650 > and had an apparent problem with fuel starvation. It's about a 20
> Any troubleshooting suggestions would be greatly appreciated. > > Thanks, > John Wishart > 2000 KLR650
With no fuel filter installed, I vote for a blocked tank vent. Shoot some air up the nipple on the back of the tank and remove the tank cap and clean it, then shoot it with some air. It would be interesting to find out if the float bowl is dry when you experience this problem. If that's the case, then I would suspect a problem with the petcock vacuum line. Z Dc

Joseph Simoneaux
Posts: 7
Joined: Thu May 30, 2002 6:11 pm

apparent fuel starvation problem

Post by Joseph Simoneaux » Thu May 30, 2002 7:11 pm

John, I had a similar problem that started a few months ago. It only happened after 10 min or so of freeway speeds. Once it occured the first time though it would happen at different speeds. Funniest thing is that it never happened around town. I tried getting rid of the fuel filter, replacing all carb lines, checked the float level and float itself for sticking. I rebuilt the petcock with a kit from Fred and made sure the vent line was clear. Cutting to the chase I found that there was a mix of water and rust in the tank, on the right side of the tank. I got alot of good suggestions from the list but nobody came up with this one, in spite of several post about rusty tanks. I put a length of chain in the tank with a bit of gas and shook it around, repeated several times til all the rust and gunk were removed. I know this problem will probably recur unless I cream the tank, which I plan to do soon. I did the chain treatment a month or so ago and have taken 2 300mi+ trips at speeds of 30-75 with no stalling problems. I hope this helps save you some time in solving your problem. Oh, I bought mine used too, last year, a 99 model so who knows how much sitting around it did collecting condensation in the tank. I'd like to take the oportunity to thank the listers who did offer advice. They were all good suggestions and made perfect sinse to me. I wouldn't have guessed this was the problem if I hadn't found the smallest hint of brown substance in the bowl. Good luck John, I hope you get your problem ironed out ASAP! Joe Simoneaux in NC
On Thu, 30 May 2002 17:05:15 -0000 jwishart2001 wrote: I was coming home from work the last two evenings on my 2000 KLR650 and had an apparent problem with fuel starvation. It's about a 20 mile drive and this occurred 4-5 times on the way. I was running along normally at speeds from 35-65 MPH with a few stoplights in between and suddenly seemed to run out of gas. The petcock was on main and when I checked the tank, I had plenty. I put it on reserve and tried to restart. After a couple of minutes, it restarted OK and run fine for a few miles then the same sequence occurred again several times. I tried both petcock settings, main and reserve and that didn't seem to make any difference. I also opened the tank to check the fuel level each time. Setting the choke to rich also seemed to help get it running initially, but I still had to close the choke after it started. All the hoses at the carb were connected and also the line on the back of the gas tank. I checked that when I got home. I have not removed any of the lines to check for clogging or pinching yet. The weather was about 75-80 degrees F. and dry. This did NOT happen on the way to work either morning, but only on the way home. What should I be checking? I am suspecting that it is something to do with a vacuum line being plugged or pinched or disconnected, but haven't got that far in checking yet. Would a blocked fuel tank vent or tank pressure relief be a candidate? How would I check that? What does that line at the rear of the fuel tank do? How about fuel line routing (I don't have a fuel filter installed)? I am also suspecting moving the carb around when I drilled out the pilot mixture screw plug may have contributed to this problem, but it ran fine for about 50 miles or so at fairly low speeds on a couple of trips after I did that mod last weekend. Mods I've done include the carb vent T-mod and setting the pilot screw at 1.5 turns out. Prior to this problem, it had been running great with fuel mileage at 57-60 MPG. The bike has about 6K miles on it. I got it used in April and have put the last 1K miles on it. Any troubleshooting suggestions would be greatly appreciated. Thanks, John Wishart 2000 KLR650 Checkout Dual Sport News at http://www.dualsportnews.com Be part of the Adventure! Visit the KLR650 archives at http://www.listquest.com/lq/search.html?ln=klr650 Post message: DSN_klr650@yahoogroups.com Subscribe: DSN_klr650-subscribe@yahoogroups.com Unsubscribe: DSN_klr650-unsubscribe@yahoogroups.com List owner: DSN_klr650-owner@yahoogroups.com Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/

millerized_2000
Posts: 174
Joined: Fri Feb 15, 2002 2:26 pm

apparent fuel starvation problem

Post by millerized_2000 » Fri May 31, 2002 6:19 am

I sure hope that it was brass or copper chain. That makes a really nice picture, making sparks in a gastank about 10 inches from your head. millerized
--- In DSN_klr650@y..., Joseph Simoneaux wrote: >I put a length of chain in the tank with a bit of gas and shook it around, repeated several times til all the rust and gunk were removed.

mnron2002
Posts: 160
Joined: Sun Mar 10, 2002 9:35 pm

apparent fuel starvation problem

Post by mnron2002 » Fri May 31, 2002 8:12 am

--- In DSN_klr650@y..., "millerized_2000" wrote:
> I sure hope that it was brass or copper chain. That makes a really > nice picture, making sparks in a gastank about 10 inches from your > head. > millerized > > > --- In DSN_klr650@y..., Joseph Simoneaux wrote: > >I put a length of chain in the tank with a bit of gas and shook it > around, repeated several times til all the rust and gunk were > removed.
I was taught to use vinegar, not gas, when doing this process. What we used to do is get some ball bearings, throw some vinegar in the tank, and shake-rattle-and-roll. I believe that the vinegar neutralized the gas, or something. Not a scientist, but have had my share of rusty tanks. Of course, YMMV and IMHO, and of course, just my $.02 worth. Enjoy the weekend!! MNRon

Joseph Simoneaux
Posts: 7
Joined: Thu May 30, 2002 6:11 pm

apparent fuel starvation problem

Post by Joseph Simoneaux » Fri May 31, 2002 8:33 am

Actually it was chrome over brass. All I had was a couple of 24in choke chains that my incredible growing lab out grew. Worked great! I don't really see how this would be any different than using nuts and bolts as I've seen suggested before. I did get it hung up on something inside though. somewhere in the tank where it meets the seat. Probably part of the venting setup. It worked loose though with a little effort. Joe S
On Fri, 31 May 2002 11:19:14 -0000 millerized_2000 wrote: I sure hope that it was brass or copper chain. That makes a really nice picture, making sparks in a gastank about 10 inches from your head. millerized --- In DSN_klr650@y..., Joseph Simoneaux wrote: >I put a length of chain in the tank with a bit of gas and shook it around, repeated several times til all the rust and gunk were removed. Checkout Dual Sport News at http://www.dualsportnews.com Be part of the Adventure! Visit the KLR650 archives at http://www.listquest.com/lq/search.html?ln=klr650 Post message: DSN_klr650@yahoogroups.com Subscribe: DSN_klr650-subscribe@yahoogroups.com Unsubscribe: DSN_klr650-unsubscribe@yahoogroups.com List owner: DSN_klr650-owner@yahoogroups.com Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/

Joseph Simoneaux
Posts: 7
Joined: Thu May 30, 2002 6:11 pm

apparent fuel starvation problem

Post by Joseph Simoneaux » Fri May 31, 2002 8:35 am

Thanks for the tip Ron, I'll try that the next time I run into this one. Joe S.
On Fri, 31 May 2002 13:12:51 -0000 mnron2002 wrote: --- In DSN_klr650@y..., "millerized_2000" wrote: > I sure hope that it was brass or copper chain. That makes a really > nice picture, making sparks in a gastank about 10 inches from your > head. > millerized > > > --- In DSN_klr650@y..., Joseph Simoneaux wrote: > >I put a length of chain in the tank with a bit of gas and shook it > around, repeated several times til all the rust and gunk were > removed. I was taught to use vinegar, not gas, when doing this process. What we used to do is get some ball bearings, throw some vinegar in the tank, and shake-rattle-and-roll. I believe that the vinegar neutralized the gas, or something. Not a scientist, but have had my share of rusty tanks. Of course, YMMV and IMHO, and of course, just my $.02 worth. Enjoy the weekend!! MNRon Checkout Dual Sport News at http://www.dualsportnews.com Be part of the Adventure! Visit the KLR650 archives at http://www.listquest.com/lq/search.html?ln=klr650 Post message: DSN_klr650@yahoogroups.com Subscribe: DSN_klr650-subscribe@yahoogroups.com Unsubscribe: DSN_klr650-unsubscribe@yahoogroups.com List owner: DSN_klr650-owner@yahoogroups.com Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/

Devon Jarvis
Posts: 2322
Joined: Thu May 10, 2001 9:41 am

apparent fuel starvation problem

Post by Devon Jarvis » Fri May 31, 2002 9:28 am

The acetic acid probably helped clean the tank, in addition to reducing the risk of fire. There are much stronger acids for rust removal, but none of the useful ones are idiot proof like vinegar. Devon mnron2002 wrote:
> > --- In DSN_klr650@y..., "millerized_2000" > wrote: > > I sure hope that it was brass or copper chain. That makes a really > > nice picture, making sparks in a gastank about 10 inches from your > > head. > > millerized > > > > > > --- In DSN_klr650@y..., Joseph Simoneaux wrote: > > >I put a length of chain in the tank with a bit of gas and shook it > > around, repeated several times til all the rust and gunk were > > removed. > > I was taught to use vinegar, not gas, when doing this process. What > we used to do is get some ball bearings, throw some vinegar in the > tank, and shake-rattle-and-roll. I believe that the vinegar > neutralized the gas, or something. Not a scientist, but have had my > share of rusty tanks. > > Of course, YMMV and IMHO, and of course, just my $.02 worth. > > Enjoy the weekend!! > > MNRon

monahanwb
Posts: 749
Joined: Tue Dec 04, 2001 10:14 pm

nklr rode a zx12r today

Post by monahanwb » Mon Jun 03, 2002 10:24 pm

--- In DSN_klr650@y..., "ridecaptan" wrote:
> Took a ride on a 2000 ZX12R today. All I can say is WOW. What a
bike.
> Yeah it's fast all right, and so so smooooth. I was very impressed > with the bike. The owner told me he had it dynoed, something like
160
> some odd ponies at the rear wheel. I never rode anything that fast > before. Sweet bike.
Nice. Been wanting to ride one of them myself. Hoping for the 02 model.

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