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Thread: Petcock, carb or something else!?!? Reply to Thread
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  Topic Review (Newest First)
04-09-2014 09:24 PM
justjeff
Quote:
Originally Posted by foofoo7777 View Post
Know what you are saying but a high capacacity filter should be ok?
The higher the capacity the better but you don't really need one. There is a very fine screen filter in the tank on the petcock inlet tubes that are more than up to the job. Self cleaning too. The screen mesh is finer than any jet orifice in the carb so anything that can go through the mesh will flow right through any orifice in the carb too.
Regards....justjeff
04-09-2014 09:06 PM
foofoo7777 Know what you are saying but a high capacity filter should be ok?



Quote:
Originally Posted by justjeff View Post
Being gravity flow the KLRs don't take well to inline fuel filters. When the fuel level gets lowish there isn't enough head pressure to overcome the natural restriction of the filter. I recommend ditching it.
jj
04-02-2014 11:46 PM
Damocles Steering head bearings o.k.; adjusted properly?

Front fork oil serviceable and set at proper levels?

Would an Eagle Mike fork brace help?
04-02-2014 10:55 PM
Renimus Glad to report that bike finally runs good again. Eagle Mike said it's one of the trickiest issues he had to fix. Even after replacing petcock, float needle, adjusting valves, putting back stock jet - it still kept dying. We finally replaced the whole carb, and it's been running fine ever since. Looks like it was some sort of internal blockage.
Very grateful for Mike's help, one of the nicest guys I ever met.

Unrelated to original post; I crossed Mexican border today and started experiencing bad front end wobble again. This has been an issue few weeks ago, but it seemed like it went away after replacing front tire, and truing front wheel. However, I haven't had all my gear (about 110lbs) on me since that was done until today. I have progressive rap rear shock and it seems like it's appropriately adjusted. I've set rear to 38psi and front to 35psi. Any suggestions?
03-26-2014 11:17 PM
Scrapper sorry we couldn't get it done for ya. i'm sure with a little more persistance we could have gotten it noodled out. i'm sure mike will get it figured out and fixed.
03-26-2014 11:08 PM
justjeff Hi Renimus,
I believe the petcock EM is selling IS the Raptor one. Works great on both my bikes. I have a gen 1 with a IMS tank and a gen2 with a stock tank.
Running issues like yours can be hard to diagnose over the internet. Almost sounds like some debris in the carb. Hope EM gets it fixed for you.
Regards....justjeff
03-26-2014 10:42 PM
Renimus Thank you all for your input. I'm done messing with it as problem is still there, and taking it to eagle mike this saturday. I'm sure he'll know what the issue is.
03-26-2014 10:11 PM
Damocles Before you replace petcocks, you might check to see if yours is working.

Disconnect fuel line at carb, stick hose end in glass jar. Crank engine, observe whether fuel flows. If so, chances are you've no vacuum petcock problem; functioning petcock is either in OPEN or CLOSED position, depending upon carb vacuum.
03-26-2014 02:09 PM
Spec
Quote:
Originally Posted by Renimus View Post
After quick test drive, this is what happened; petcock in off position - bike started ok. Put petcock on reserve, bike died after 3 blocks. It died as I was slowing down, just downshifted in 2nd gear. Opened the cap for vacuum - nothing. Turned it back on with lot of cranking and fully open throttle and left tank cap slightly open, it died again after few block, again as I was slowing down.
Closed tank and rode it for a bit always maintaining a little open throttle, even when slowing - bike runs. As soon as I let go of throttle while slowing (usually when downshifting to 2nd) - bike dies.
Doubt I can take bike like this to San Diego today. Suggestions?
Also, was wondering what's the opinion on Yamaha rapator 660 petcock? I've seen some guys use it on klr. I can get my hands on that one locally here today.

Have you looked at the vacuum line on the back of the petcock?

When it dies open up the float bowel and see if there's gas in there.
03-26-2014 01:44 PM
DPelletier like I said on the other site; the Yamaha petcock works great.

Dave
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