Author Topic: Another Leaky Carb Question  (Read 1006 times)

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Offline mkramer1121

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Another Leaky Carb Question
« on: July 08, 2006, 04:07:18 PM »
Just confirming that its time for a rebuild of the carb.  Recently (within the last week) the furthest left carb started to trickle fuel out of the overflow.  So this morning, I pulled it apart, cleaned it, and reset the clearance for the floats.  It was fine for 5 hrs, until I went to double check it.  Seems its not coming out of the overflow now, but is leaking into the pod filter.  After squeezing that out (unifilter foam filters) I checked this here forum for some help.  Found Raul's post similar to mine, and pulled the overflow tube, spurted carb cleaner down it, and sure enough it was clogged (must've flipped a couple upon reassembly).  Read the rest of his post, and couldn't really find what he did to fix the leak.  Haven't looked yet (this was 10 minutes ago) but I assume that it will leak out of the carb overflow now.  Here's the kicker, and I need to get an opinion on this.  I have a non-stock petcock on the big.  Its just a brass valve that has a twist open valve.  The original owner was going to use the tank for a chopper build and thus drilled my tank out.  When the valve is off, it still trickles a small amount of gas out.  When I worked on the carbs this morning, I set the fuel line from the tank into a gas can.  It trickled(more like drips) enough to leave a noticeable amount of gas in the tank.  Now, I know I should replace the petcock, or find something that will work/fit.  This explains the problem with it flowing out when the petcock is off, right?  Now, for confirmation, I need to rebuild this carb, correct?  I don't want to go through all this trouble only to find that it wasn't the problem.  Thanks!

Offline 750goes

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Re: Another Leaky Carb Question
« Reply #1 on: July 08, 2006, 04:46:57 PM »
Seems you need to fix that leaky fuel tap first.

For overflowing carbs, check the float valve/needle to be sure it's not sticking, then maybe adjust the float height if required.

No need to pull the carbs yet if only one has a problem, and you can get to work on it without too many problems.. :)

Offline mkramer1121

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Re: Another Leaky Carb Question
« Reply #2 on: July 08, 2006, 11:05:56 PM »
Yeah, tonight I was out w/ Proteal on the Chicagoland Midnight tour, and on I-294 at 80mph my fuel line got air bubbles in it because of the *custom* petcock, and my bike wouldn't rev over 4k rpms.  That's the first thing I'm replacing, then worrying about everything else.  Thanks for the help.