Nik's Poulan Thread

[2many2count]

Govenor valve on tillotson carb

Question for all the carbueretor guru's,I have some tillotson HS carbs on some of my poulans.Is it my understanding that these valves limit over revving or they just prevent saw from over leaning mixture?I have a 5200 that I use in competitions.Is there a way I can swap out carbs or change govenor valve to get a edge on competition?

 

[redunshee]

Quoting myself seems funny but I am adding to the "DATA". If all else fails read the instructions right??? Right on the saw it says you have to choke AND hold the throttle. When I tried this it pops right off and at first I kept hold the trigger and it runs real bad. Then I slowly let off the trigger and it winds up so high may hand about vibrated off (modified mark said I would like this saw). When I completely let off the trigger it runs really fast then eventually dies...Do I just have the metering lever not quite right? The Tillotson instruction page I have doesn't really describe this problem. The fuel filter and line are both new in case that matters, I can see through the hole in the gas cap, nice and clean.

Foolish question but I presume after it popped with the choke on you push in the choke and started it with chole off. After starting w/o the choke did it still do what you described? If metering lever is to high saw will normally flood out. Or it could be caused by a sticking needle valve.

 

[briantutt]

Foolish question but I presume after it popped with the choke on you push in the choke and started it with chole off. After starting w/o the choke did it still do what you described? If metering lever is to high saw will normally flood out. Or it could be caused by a sticking needle valve.

Yes I did shut the choke off. Needle valve is new When I rebuilt my 70E it was flooding and that was the reason as you suggest so I do agree with that.

 

[Modifiedmark]

Question for all the carbueretor guru's,I have some tillotson HS carbs on some of my poulans.Is it my understanding that these valves limit over revving or they just prevent saw from over leaning mixture?I have a 5200 that I use in competitions.Is there a way I can swap out carbs or change govenor valve to get a edge on competition?

Good question, wish I had the answer. I myself don't think I have seen a governer on my older HS's.

 

[2many2count]

HS govenor

it is brass plug behind choke lever on carb

 

[Justsaws]

I think they prevent over reving by allowing more fuel through the carb when the governor ball vibrates at a certain frequency.

A lot of them are beyond their days and leaking failure can mimic an ignition problem. Block them off with a piece of gasket seems to be how most get "fixed".

 

[Modifiedmark]

it is brass plug behind choke lever on carb

I forgot about that, and that might explain something. I'll check and report back later.

 

[knockbill]

did you check for air leaks, with the high reving problem?

 

[lawnmowertech37]

did you check for air leaks, with the high reving problem?

could be the cause i was going to suggest that but wanted someone else to do it to get the credit

cause air leak = serious issues

could be a gasket somewhere that has a tear in it that will cause a vacuum issue air leak

 

[briantutt]

Or is it this from the tillotson manual?

"Welch plug covering the idle discharge ports does not seal. This causes the engine to idle with idle mixture shut off."

I swear I did this right because I used an arbor press to neatly press the new plug in. But idles high until screw is about 1/8 turn from all the way in...

 

[rms61moparman]

did you check for air leaks, with the high reving problem?

could be the cause i was going to suggest that but wanted someone else to do it to get the credit

cause air leak = serious issues

could be a gasket somewhere that has a tear in it that will cause a vacuum issue air leak

Sounds like time for a pressure/vac test.


Mike

Brought that up WAY back!

 

[knockbill]

Brought that up WAY back!

yep,,, sometimes there are so many replys and info,, you forget the basics...........

 

[Applehead]

Handle assembly ?

Looking to replace the rear left side handle on my 4000.
I cannot find this part anywhere online, all the sites I've tried say "part not available" I did get the pn #11826 from the diagram but still no luck.
Can anyone suggest a place to look?

 

[redunshee]

Looking to replace the rear left side handle on my 4000.
I cannot find this part anywhere online, all the sites I've tried say "part not available" I did get the pn #11826 from the diagram but still no luck.
Can anyone suggest a place to look?

Yup. If one side brakes its the left side as its not really attached to much unlike the right side. You'll have better luck looking for the entire rear handle for a 3400 or 3700( same handle)on Ebay, etc.

 

[lawnmowertech37]

Looking to replace the rear left side handle on my 4000.
I cannot find this part anywhere online, all the sites I've tried say "part not available" I did get the pn #11826 from the diagram but still no luck.
Can anyone suggest a place to look?

can you take a picture of the handle you need and post that image in here using photobucket and the url to the picture on photobucket
that way if i had a image of the part i may be able to find something

 

[rms61moparman]

:agree2::agree2::agree2:

And be aware that those handles aren't all the same.(i.e. all rights and lefts do not interchange)
If you don't find one let me know. I have an orange one that I'm not using.

 

[redunshee]

:agree2::agree2::agree2:

And be aware that those handles aren't all the same.(i.e. all rights and lefts do not interchange)
If you don't find one let me know. I have an orange one that I'm not using.

Are you referring to the fact that some have differant size AV mounting holes? I have some that use a long metal rod to attach the handle to the saw with small exterior screws and some that have a hexagonal middle bar which requires a larger hole in each handle half. Oops. Forgot to mention that..Good heads up! Bob

 

[rms61moparman]

Are you referring to the fact that some have differant size AV mounting holes? I have some that use a long metal rod to attach the handle to the saw with small exterior screws and some that have a hexagonal middle bar which requires a larger hole in each handle half. Oops. Forgot to mention that..Good heads up! Bob

No I figured everyone that fools with these old saws knew about that.

I'm referring to the fact that sometimes the handles look the same and when you bolt them together they don't fit worth a damn!

Mike

 

[redunshee]

No I figured everyone that fools with these old saws knew about that.

I'm referring to the fact that sometimes the handles look the same and when you bolt them together they don't fit worth a damn!

Mike

Hmmmm! Didn't realize that. Thanks for the heads up!

Bob

 

[Applehead]

can you take a picture of the handle you need and post that image in here using photobucket and the url to the picture on photobucket
that way if i had a image of the part i may be able to find something

Thanks, I will do this.