Newb Fuel question - Kawasaki KLR 650 Forum
1987 to 2007 Wrenching & Mods For maintaining, repair or modifications of Generation 1 KLR's. 2007 and earlier.

Reply
 
LinkBack Thread Tools Display Modes
post #1 of 12 Old 05-14-2009, 02:21 PM Thread Starter
 
Join Date: May 2009
Posts: 9
Newb Fuel question

Bought a 98 ran great for a day took it to the shop had the carb cleaned, ran great for a day. Ran kinda crappy for a couple days. Ran great today so I took a ride and found a really cool public dirt road which is summer access only. It was really fun blasting my 98 KLR 650 over bumps, rollers and through some mud. When I got back to the road it died. I assumed it was flooded, so I let it sit for a bit (after unsuccessfully trying to start it) gave it some juice and it fired back up. Rode it towards home, and it died a couple more times before I got home. Flooded each time. Once I was parked I adjusted the idle screw to see if it was just not idling correctly. I had to hold the throttle keep it running. While I was down there I noticed gas streaming out of a hose pointing down towards the ground coming off of the left side of the carb. I quickly shut it off and the gas stopped comming out. I cant find where its supposed to go. Did the road gremlins attack? My clymer is in the mail. After some posts on The ADV forum we think its an over flow hose, and the float is stuck open. Any more ideas would be helpful. This is my first bike and I like doing my own work so I'm trying to learn.

Thanks for any advice.
Brian

here are some pics of the hose that had gas coming out.
http://usera.imagecave.com/subafly/m...e/IMGP0083.JPG
http://usera.imagecave.com/subafly/m...e/IMGP0085.JPG

Also, before today I was having problems with not getting enough fuel, I would be cruising and the engine would stumble (sorry thats the best I can put it) but it would accelerate fine. thats why I had the carb cleaned.
subafly is offline  
Sponsored Links
Advertisement
 
post #2 of 12 Old 05-14-2009, 03:31 PM
Pretty in Pink, dunno why
 
Tom Schmitz's Avatar
 
Join Date: Feb 2009
Location: Redondo Beach
Posts: 7,549
Garage
Subafly-

That's the carb vent hose. It's job is to make sure that hte carb bowl remains at atmospheric pressure so that fuel will flow. When it get's blocked off, the engine starves for fuel and runs like crap. There's a mod (T-Mod) to fix that, but that's another story 'cause it ain't your problem today.

If stuff is coming out of it then your inlet valve is definitely stuck (or the floats are gas-logged and won't float anymore) and she's floodin' like the mighty Mississippi. Best bet is to remove the carb and give it a good cleaning.

You may be able to get away with removing the float bowl and jiggling things about a bit, or you might even set thing right by tapping the bowl with a screw driver handle. But, it's a 10 year old bike. If the carb is in a state where the inlet valve is sticking, the rest of the carb probably isn't that far behind.

While you're waiting for your Clymer's to come, you might want to look at this site:

https://www.johnsmotorcycleparts.com...uning_tips.htm

And this one:

http://www.gadgetjq.com/keihin_carb.htm

Tom

Last edited by Tom Schmitz; 05-14-2009 at 08:08 PM.
Tom Schmitz is online now  
post #3 of 12 Old 05-14-2009, 04:35 PM Thread Starter
 
Join Date: May 2009
Posts: 9
Thanks. I just got the bike back from the shop from having the carb cleaned. So its should be good. I dont know what they actually did to it but I paid 208 bucks to get the thing cleaned. I will try that other stuff. And thanks for the links!
subafly is offline  
 
post #4 of 12 Old 05-14-2009, 08:10 PM
Pretty in Pink, dunno why
 
Tom Schmitz's Avatar
 
Join Date: Feb 2009
Location: Redondo Beach
Posts: 7,549
Garage
Quote:
Originally Posted by subafly View Post
Thanks. I just got the bike back from the shop from having the carb cleaned. So its should be good. I dont know what they actually did to it but I paid 208 bucks to get the thing cleaned. I will try that other stuff. And thanks for the links!
Oh. I missed the part about "just got it back from the shop". I need to work on my reading comprehension...

I'd say they need to fix it up for you. If you had a shop work on the carb and you now have carb issues, that is still their responsibility. Take it back (for the last time - from now on you work on yer own bike) and have them set it right.

Tom
Tom Schmitz is online now  
post #5 of 12 Old 05-15-2009, 01:51 AM Thread Starter
 
Join Date: May 2009
Posts: 9
ya your right. I would have done it myself the first time but I really needed a vehicle. To bad I still dont have one thats reliable. My room mate took his bike there too and when he got it back the choke was stuck open. I almost want to take it somewhere else but they should fix it.
subafly is offline  
post #6 of 12 Old 05-16-2009, 03:27 AM Thread Starter
 
Join Date: May 2009
Posts: 9
Well I drained the bowl and tapped it with a crew driver handle. Sure enough a little chunk of black stuff came out. I dont know it could have been in the cup I drained it into already but it fixed it. So its no longer flooding. Im going to ride tomorrow and see what goes down. Also added the proper size allen wrench to my tool wrap!

Thanks,
Brian
subafly is offline  
post #7 of 12 Old 05-31-2009, 09:53 AM
 
Join Date: Oct 2007
Posts: 94
Bought a Gold Wing from my brother many years ago, it had sat in his garage with gas in the tank and no Stabil, but Stabil only lasts for 2 years, so they say. I rode the gold wing back to Joliet, Illinois from Thornton, Colorado, nightmare ride, wouldn't idle or anything, but did run, fairly well at expressway speeds, if you could handle it jumping all over the tar strips, anyway, to cut the story down, when I got home, I found the carbs full of wax, gelled gasoline, cleaned them, still bad, the tank was full of rust, rust will pass by filters(?), used an acid formula, from Yamaha, to clean the tank, a sealant and the bike ran great, the dancing on the tires was bad sidewalls from old tires, still lot of tread, just age. If you have stuff going into your carb and the bike had been sitting check out the condition of the inside of the tank. It will be a continual nightmare if it is rust and gelled gas.
erbie is offline  
post #8 of 12 Old 06-01-2009, 08:02 AM
 
Join Date: Apr 2009
Posts: 79
Quote:
Originally Posted by subafly View Post
ya your right. I would have done it myself the first time but I really needed a vehicle. To bad I still dont have one thats reliable. My room mate took his bike there too and when he got it back the choke was stuck open. I almost want to take it somewhere else but they should fix it.
Hate to say it, but you may need to find a new shop.
hippiebrian is offline  
post #9 of 12 Old 06-01-2009, 02:04 PM
4th Gear
 
vatrader's Avatar
 
Join Date: Sep 2008
Location: Virginia
Posts: 1,263
In all fairness to the shop, they have no way of controlling what will flow into the carb. A fuel filter will aid in filtering the fuel before it gets into the carb, a mechanic can not. He just can not control what is in the gasoline.
You described a "black chunk" that came out of the bowl. Since there are "supposed to be" screens on the inlets to the petcock [inside the tank], and their job is to screen impurities from the fuel, there is only one other place the "black chunk" could come from. Inside the petcock assembly, to the very rear, is a black rubber bushing / gasket. With time, it begins to deteriorate and allow small black chunks to flow into the carb bowl, causing the float to stick and flooding the bike. You can buy the "Tap Valve Gasket", as it is called, from Ronayers.com. Part # 11009-1188 for $2.54 before shipping. There is also an "O" ring gasket in the petcock assembly that should be replaced while you are in there, part # 92055-1085 and will set you back $2.02.
In the mean time, if the bike should flood out again, you can flush the little black invaders out of the bowl by backing out the drain screw on the bottom of the carb. As the gas runs out, tap on the carb bowl area to assist the contaminants out of the drain hole. Just carry something with you to back that drain screw out with. You will be going in a few minutes.
If your bike is still using the vacuum actuated fuel system, you will have to crank the bike a bit to fill the fuel bowl up enough to start the bike. The only time gas will flow from the tank to the carb is when the engine is turning over, supplying vacuum. I prefer to convert the systems to gravity feed. Rarely does gravity fail, require parts or a manual in three languages. It also limits places to look when troubleshooting a fuel delivery problem. If you think vacuum actuated systems are good, I will bet good money you never drove a car with vacuum actuated windshield wipers. You speed up, the wipers went faster. Slow down...

Anyway, based on what you have shared, I'll bet the root of the trouble is in the petcock.
vatrader is offline  
post #10 of 12 Old 06-01-2009, 02:16 PM
 
Join Date: Apr 2009
Posts: 79
Good point. How do you switch to gravity feed?
hippiebrian is offline  
Sponsored Links
Advertisement
 
Reply

Tags
fuel, gas, stall, stalling

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Kawasaki KLR 650 Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in










Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Similar Threads
Thread Thread Starter Forum Replies Last Post
Newb from BC 3rdengineer Introductions 3 04-25-2009 03:48 AM
KLR Newb carb question trail70 1987 to 2007 Wrenching & Mods 13 09-26-2008 05:28 PM
Fuel shutoff valve w/n pass fuel Stephen.s1 1987 to 2007 Wrenching & Mods 4 07-12-2008 08:16 AM
Newb Questions.... HELP! mjkmarine1277 1987 to 2007 Wrenching & Mods 3 03-03-2008 04:42 PM
Bay Area Newb dirty_t Introductions 7 02-28-2007 10:52 AM

Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome