Super XL Auto help

[SteveA]

Greetings:
Great site, I'm glad I stumbled upon it. My problem....... I have an older Homelite Super XL Auto (UT-10045A). Before I assumed ownership, it sat around for a while and needed the usual 2-stroke fuel system clean-up etc. After the cleanup and replacing the ignition module, the saw starts and seems to run OK. But after it warms up, it stalls when I pull the throttle trigger and does not want to re-start. Note: The stall only occurs after I return to idle and then attempt to increase the throttle when it's hot. If I start it cold and keep it at full throttle, it will continue to run. As I mentioned above, the carb was cleaned and the fuel is fresh. Any ideas? Thanks.

 

[RaisedByWolves]

Sounds like an issue with your needle settings.



Lightly colse them to their seats and open them one turn. Set your high needle at WOT till is has a nice burble/4 stroking sound. Then set your Low screw till you get a nice, consistent idle, while having good responce off idle.(no stumblimg/coughing/dying)


The Idle setting is usually a balance between the L needle and the idle stop screw.


Changing either screw can give a good idle, but if your too far off either one it will do what yours is doing, among other things.




BTW, Welcome to AS!

 

[twoodward15]

That'll do it. Make sure you turn the screws in lightly as you can damage the seats. I usually start with making sure it idles. I adjust the low speed screw to get the highest idle possible, then adjust the idle down. I then adjust the high speed screw with the saw at WOT until it is 4 stroking, then let it return to idle and readjust the low speed screw. It only takes a few minutes and you'll be surprised at how much better it will run. Either way you do it will work just fine, that's just how I do it. 6 of 1 half a dozen of another.

 

[oldsaw]

Replace the fuel line and filter while you are at it. Else, that is a great saw, one of my favorites.

Mark

 

[SteveA]

Super XL

First of all, thanks for the quick replies. After reading your comments, I examined the fuel line from the carb to the tank. I found that it was somewhat squashed and cracked at the grommet leading from the carb housing. The ID was substantially occluded. I then pulled the line through the grommet at the tank and could not find a filter at the end. Nothing rattling around inside. It appears that the bare line was just dropped to the bottom of the tank. My next step will be a trip to the power equipment store to get some fuel hose and a filter. I might as well pull the carb and make sure it's clean.

 

[RaisedByWolves]

Hah, just had the carb out of one of these today!



You will have to back out the carb screws about 5/8-3/4" and remove the carb, reed cage and reed spacer as one unit.


Most likely you can simply tear the carb down and clean it with carb cleaner and it will be OK.

Check both diaphrams for pin holes by holding them up to the light.


DO NOT let the needle get soaked with carb cleaner!


It will cause it to swell up and will take a week for it to resume its normal size, and often it gets ruined altogether.


Other than that just be carefull with the gaskets and shell be singing in no time.

 

[SteveA]

It runs!

Since I posted here last, I purchased new fuel line / fuel filter / air filter and a new SDC carb kit from an EBay dealer.
All of the carb parts matched except for one of the diaphragms. The original one (with the wheel) had a notched post which connects to the needle clip. The replacement only had a rivet holding the wheel to the membrane. The original looked OK so I reinstalled it. The inside circular screen looked like it had grass growing out of it??
Anyway after putting everything back together, the saw started right up and so far, runs like a champ.
Thanks for the help.

 

[RaisedByWolves]

Thats good to hear Steve!


Thats a hard saw to kill, its usually something simple with them.

 

[oldsaw]

Great, now go play and keep us posted. Don't forget about us now that we solved your problems.

mark

 

[CrazyCarl]

Carb Kits

I have original homelite carb kits for that carb.As long as there are no holes in the diaphram and its not hard,then i would try to use it.If not,and you have a problem (which I doubt with all these chainheads in here)Give me a holler and i'll see what i can do

 

[bsjonny520sp]

how much carl?

 

[Indiana John]

The big problem with these saws is the coil failing, at least with the electronic coils. I've got one that needs a coil, and have yet to find one at a reasonable price. From what I've heard they are good saws, but mine is probably gonna wind up on eBay. If I really needed it, I'd probably spend the money, but I've got plenty of other saws that run so for me it's just not worth it.