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Motor Running Rich After Valve adjustment
http://mudmotortalk.com/mmt_v2/viewtopic.php?f=3&t=29405
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Author:  Bubby83 [ Tue May 22, 2012 7:35 pm ]
Post subject:  Motor Running Rich After Valve adjustment

I just set my valves on my BD 4500 the other day. they were way out. .008 on the intake and .015 on the exhaust. I set them all to .006. Since the adjustment I have notice that my motor seams to be running rich. Plugs are black, and if I run for a while, shut it down, then try and start it a couple minutes later, it is hard to start. Is this a common thing? how would I go about adjusting my carb to lean it out a bit?

Author:  dguidry [ Tue May 22, 2012 8:17 pm ]
Post subject:  Re: Motor Running Rich After Valve adjustment

Does TDC mean anything to you?

Author:  richard nagon [ Tue May 22, 2012 8:41 pm ]
Post subject:  Re: Motor Running Rich After Valve adjustment

does burnt fingers mean anything to u. dguidry :lol: bubby83 try setting ur valve lash on the back side of the lobes it is in my opionion a better way of setting lash do a search.

Author:  dguidry [ Tue May 22, 2012 8:47 pm ]
Post subject:  Re: Motor Running Rich After Valve adjustment


Author:  Bubby83 [ Wed May 23, 2012 11:19 am ]
Post subject:  Re: Motor Running Rich After Valve adjustment


Author:  dguidry [ Wed May 23, 2012 12:33 pm ]
Post subject:  Re: Motor Running Rich After Valve adjustment


Author:  cb5331 [ Wed May 23, 2012 1:15 pm ]
Post subject:  Re: Motor Running Rich After Valve adjustment

What was wrong before you "fixed" it?

Author:  Woodiebuster [ Wed May 23, 2012 2:26 pm ]
Post subject:  Re: Motor Running Rich After Valve adjustment

running to lean :lol:

Author:  Bubby83 [ Wed May 23, 2012 5:08 pm ]
Post subject:  Re: Motor Running Rich After Valve adjustment


Author:  cb5331 [ Wed May 23, 2012 5:17 pm ]
Post subject:  Re: Motor Running Rich After Valve adjustment

Yeah, I saw where you posted that but the motor wasn't running like shit before you messed with it, right? What else has changed?

Author:  Bubby83 [ Wed May 23, 2012 6:35 pm ]
Post subject:  Re: Motor Running Rich After Valve adjustment

no more valve clatter.....

Author:  cj [ Wed May 23, 2012 8:16 pm ]
Post subject:  Re: Motor Running Rich After Valve adjustment

if you set your valve lash to exact specs. i would think that your rich problem was already present.you might be just noticing it after the fact. i would rejet your carb install new plugs and run a test on it.

Author:  cb5331 [ Wed May 23, 2012 8:26 pm ]
Post subject:  Re: Motor Running Rich After Valve adjustment


Author:  cb5331 [ Wed May 23, 2012 8:27 pm ]
Post subject:  Re: Motor Running Rich After Valve adjustment

Maybe your prop too. That could cause it. :lol:

Author:  cj [ Wed May 23, 2012 8:32 pm ]
Post subject:  Re: Motor Running Rich After Valve adjustment

i'am i missing something here. or are u in one of your moods :lol: cb.

Author:  cb5331 [ Wed May 23, 2012 8:38 pm ]
Post subject:  Re: Motor Running Rich After Valve adjustment

No problem other than a little clatter...set valves...PROBLEMS...

Only one thing changed on this motor to make it start running like shit...I'd start with rechecking the only thing that changed...

Think simple, stupid! :lol:

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