 #$%@ Carbs... |
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| yeahmag |
 Oct 13 2010, 02:45 PM
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#1
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Advanced Member  Group: Members Posts: 2,422 Joined: 18-April 05 From: Pasadena, CA Member No.: 3,946 Region Association: Southern California 
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Not getting enough fuel to one cylinder at idle. Did all the normal tricks:
* checked idle jet (clean) * ran idle mixture screw in and out * removed idle jet and mixture screw and blew out * removed idle jet and "plugged the hole" with finger (this should give me a *very* rich mixture, only got down to 15:1 or so) So, it's time to pull the carb. I suspect something is blocking the mixture screw area... Of course I have a race this weekend. Sigh. |
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| yeahmag |
Oct 13 2010, 09:10 PM
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#2
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Advanced Member Group: Members Posts: 2,422 Joined: 18-April 05 From: Pasadena, CA Member No.: 3,946 Region Association: Southern California
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OK. Popped the carb off and R&R'ed the idle mixture screw and it's bits and pieces, verified my plugs (damn... they look good! Light brown! A testament to an LM-1), and put it all back together. Re-sync'ed the carbs and it ran great in the driveway. As soon as I pulled away it was stumbling all over the place.
FML So, I need to verify my fuel pressure (CB's rotary pump) and then if that checks out it's down to a full rebuild of the carbs. |
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Posts in this topic
yeahmag #$%@ Carbs... Oct 13 2010, 02:45 PM
Root_Werks Just for giggles and because it's cheep anyway... Oct 13 2010, 03:32 PM r_towle Check your valve settings on that cylinder and do ... Oct 13 2010, 04:02 PM Vacca Rabite I second trying a new spark plug or even just clea... Oct 13 2010, 04:58 PM yeahmag It's got a Mallory 6AL, Bosch Blue Coil, and ... Oct 13 2010, 05:04 PM Brett W Sounds like trash. PUll the carbs off and take th... Oct 13 2010, 07:18 PM jmill Vacuum leak? Oct 13 2010, 07:58 PM tscrihfield Not questioning your ability to inspect the Jets, ... Oct 13 2010, 08:04 PM yeahmag I should mention that I also checked the screen at... Oct 13 2010, 09:39 PM john rogers How long did the car sit? If it had pump gas and w... Oct 13 2010, 11:02 PM Vacca Rabite Check you timing too.
I have been fighting a stumb... Oct 14 2010, 06:26 AM yeahmag Not the fuel pump. Steady 2.5 psi no matter what..... Oct 14 2010, 07:55 PM yeahmag I think we have a winner....
john rogers - step r... Oct 14 2010, 10:27 PM john rogers You can try spray cleaner BUT you'll end up be... Oct 15 2010, 12:56 PM indianmort if it has not been mentioned earlier, fill tank wi... Oct 15 2010, 01:48 PM
Razorbobsr
Not getting enough fuel to one cylinder at idle. ... Oct 15 2010, 02:46 PM |
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