Carb idle problem [urgent]

Post by **vincent9993** » Thu Jul 13, 2006 3:08 am

So here I am in the city with my dune as my sole transportation method to get to work tomorrow morning and my ride no longer idles. It idled fine a few weeks ago and the only thing that changed is I lent it to my brother who assures me he did not touch anything ... humm! Anyhow, here is what I have: Standard 1600 stock engine, PICT 34, SVDA distributor. Everything is connected (vac and electric) The cut off valve is working, ie it engages and de-engage when I connect and disconnect the wire to it. I suspect it's dirt in the carb? Should I try to mess with the adjustment if it was working fine a few weeks ago? I'm 100 miles away from my shop and tools, not sure the wife (who happens to be out of town) would apreciate me overhauling the carb in our city apartment's living room. The though did cross my mind. In anycase, I'm leaving for work in my dune tomorrow 6:00AM. Any suggestion will greatly be apreciated! Thanks.

Lee · Post by **Lee** » Thu Jul 13, 2006 7:26 am

We have to give you SOMETHING to try... Make sure the cut off valve is tight. If it's loose, you will have an air leak in the idle circuit, even though the solenoid still actuates. There are a lot of things to check, too many if you are trying to get to work. You might be able to cheat and get some sort of idle by turning in the screw on the throttle arm (the screw that contacts the cam on the choke). This should allow the engine to idle by opening up the throttle plate slightly. It's not the right way to do it, but it might work until you can do a proper repair. Good luck.

Post by **vincent9993** » Thu Jul 13, 2006 10:38 am

I'll check the valve and try to give it more fast idle. Luckily, it's almost all highway to get to work and I wont get too much trouble. Thanks again.

Post by **vincent9993** » Thu Jul 13, 2006 12:19 pm

But the idle issue still persists. It really is dirt in the carb, I'm 90% dure of it. It looks like the acceleration pump is the only thing that keeps it going idle, whenever I open the throtle a little it revs up but will still die even at if I put the arm on the choke's step cam. This happened to me last time when the solenoid failed on me. Looks like I'll be heal and toe-ing this week-end. Thanks

newmanx59 · Post by **newmanx59** » Thu Jul 13, 2006 12:31 pm

Here is something else for you to try..... * Remove the air cleaner * Start the engine * With one hand rev the engine to around 4000 rpm then block off the top of the carb with the other hand until the engine dies. * Repeat this a few times. The engine will be a little tough to start after doing this because it floods the engine, so hold the throttle pedal to the floor until the engine restarts. It will hopefully suck the dirt from the idle circuit and leave you with a buggy that idles. Good luck..

fubar · Post by **fubar** » Thu Jul 13, 2006 1:18 pm

I used the "handover method" on my sand buggy before I got the air plenum sand resistant. I would try to choke it near death but keep it running so the plugs would not fowl. It worked most of the time. Good fuel and airfilters get most of it but not everything.

Post by **vincent9993** » Thu Jul 13, 2006 2:59 pm

You my friend Newmanx59 have a cold case of beer sitting in my fridge! Did exactly as stated and like you said, I now have an idling buggy! Very happy! Thanks to Lee and Fubar as well!! This has just made my manx club membership pay for itself! Not that it already had not! Have fun buggying all!

Lee · Post by **Lee** » Thu Jul 13, 2006 4:13 pm

Jerry, Good show! I had forgotten all about the "99 cent tune-up"!!! Good tip!

newmanx59 · Post by **newmanx59** » Thu Jul 13, 2006 9:58 pm

I'm always glad to help. Although, I think it's probably a $2.98 tuneup by now.

Manx Club

Carb idle problem [urgent]

Carb idle problem [urgent]

Thanks Lee!

Made it to work...

Eureka!