Author Topic: Poulan 3450 Carb issues  (Read 1293 times)

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Offline Eccentric

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Re: Poulan 3450 Carb issues
« Reply #50 on: January 05, 2015, 02:59:51 am »
Are you removing the rear handle cover and trigger/linkage when R/R'ing the carb?  Makes it MUCH easier on these saws in my experience.  That cover is held down with a phillips screw (from the bottom) at the rear and two lugs at the front....

Offline rockfishon

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Re: Poulan 3450 Carb issues
« Reply #51 on: January 05, 2015, 06:51:41 am »
It pulls right off without doing that with the shorter carb bolts.  I have probably removed the carb over 10 times now in total.  It helped me to get a little more room to push the carb bolts in by slightly prying with a large screw driver between the top of the cylinder head and the handle bar.  Remember that the top left anti-vibration hex bolt needs to be removed for this movement.

Offline Eccentric

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Re: Poulan 3450 Carb issues
« Reply #52 on: January 05, 2015, 03:29:24 pm »
Pushing in those bolts might allow the intake boot to slip out of position.  Remember that the boot flange is clamped in a 'sandwich' that includes the metal bracket (closest to the cylinder.........bolt heads seat in it), the tank body, the boot flange, the metal carb plate, the carb gasket, the carb, and the AF bulkhead....

Offline rockfishon

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Re: Poulan 3450 Carb issues
« Reply #53 on: January 05, 2015, 07:04:18 pm »
Removed the rubber intake boot this evening.  It looked fine and didn't have any cracks.  It was still very flexible.  The clamp that attaches it to the cylinder seemed a little loose, not as tight as I would like to see it, but the screw on the clamp was as tight as it would get.  Tried another hose clamp even though it was a little bigger and tightened it down.  Started the saw and had the problem.  Spraying starting fluid on the right side of the intake boot at the cylinder made it run rich. 

Is there any chance that the cylinder can be ****?  If I take the cylinder head off do I need to replace the gasket or can it be reused?  I don't know where to go from here.

Thanks for the tip on the handle cover.  I will look into the rear handle cover again.  I might have saved me from cutting the bolts if it gives me the extra access.

Offline rockfishon

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Re: Poulan 3450 Carb issues
« Reply #54 on: January 05, 2015, 07:47:33 pm »
Reading other messages... can a bad the impulse line cause this?  Kind of odd because it is on the other side of the motor where I spray the starting fluid.

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Re: Poulan 3450 Carb issues
« Reply #55 on: January 05, 2015, 07:52:11 pm »
Reading other messages... can a bad the impulse line cause this?  Kind of odd because it is on the other side of the motor where I spray the starting fluid.

Oh yea.   Better check it.
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Offline Cut4fun .

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Re: Poulan 3450 Carb issues
« Reply #56 on: January 05, 2015, 07:56:07 pm »
I have had several **** impulse lines and a bad **** cylinder base gasket. K.I.S  first checking impulse etc.
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Offline rockfishon

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Re: Poulan 3450 Carb issues
« Reply #57 on: January 05, 2015, 08:09:36 pm »
Can anyone remember if the clamp is suppose to be tightened all the way down with no room left to tighten?  Seems a little odd to me.

Offline rockfishon

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Re: Poulan 3450 Carb issues
« Reply #58 on: March 11, 2015, 05:48:25 pm »
Thanks for all the suggestions.  I replaced the pulse line... no help.  Still having the same problem.  Then I took the cylinder off.  The base gasket was ****.  Time to order a new gasket.  Is there anything else I should do no that I am this deep?  Any specs on the for the tightness of the cylinder once I put it back together? 

Offline rockfishon

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Re: Poulan 3450 Carb issues
« Reply #59 on: March 11, 2015, 06:32:15 pm »

 

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