Walbro WT 17 B Carb and Husqvarna 40

JD Guy · February 11, 2023, 05:40:34 PM

I think I have diagnosed my no fuel problem to the carb on my 1985ish Husquvarna 40. Google hasn't found any, or a substitute. I'm not opposed to buying a carb kit and rebuilding it but no joy there either. I have other saws to use but like to grab this old gal for small quick jobs. Thanks for any and all suggestions!

sawguy21 · February 11, 2023, 06:18:55 PM

Are you looking for a replacement carburetor? Why not refresh the current one??

donbj · February 11, 2023, 08:37:31 PM

Discount Marine has a kit for that. Google Walbro WT 17 B Carb kit and you'll find it in dicarbparts. Can't put the link to it here.

JD Guy · February 12, 2023, 09:03:54 AM

Quote from: sawguy21 on February 11, 2023, 06:18:55 PM
Are you looking for a replacement carburetor? Why not refresh the current one??

No joy on finding a kit either...so far.

JD Guy · February 12, 2023, 09:08:52 AM

Quote from: donbj on February 11, 2023, 08:37:31 PM
Discount Marine has a kit for that. Google Walbro WT 17 B Carb kit and you'll find it in dicarbparts. Can't put the link to it here.

Thanks! Can I find them with a google search? Also saw your reply on other site.

donbj · February 12, 2023, 06:28:37 PM

Yes google search. dicarbparts

5ubtle · February 14, 2023, 11:54:48 PM

Walbro rebuild kit K10-WAT says that it works for most WA and WT series carbs. I use it for a WT324 and it comes with lots of extra parts that I don't need.

Carefully compare your parts to the pictures.

JD Guy · March 18, 2023, 01:38:13 PM

Quote from: donbj on February 11, 2023, 08:37:31 PM
Discount Marine has a kit for that. Google Walbro WT 17 B Carb kit and you'll find it in dicarbparts. Can't put the link to it here.

Thanks, finally got back to this project and did in fact order the kit from dicarbparts. Hopefully get the old gal running well again

DHansen · March 18, 2023, 01:53:15 PM

Looking forward to your post that the 40 is up and cutting again. Best of luck on the carburetor rebuild. I have an old 45 that I gave to my future son in law. It is a great saw and easy to maintain.

JD Guy · March 28, 2023, 02:01:28 PM

OK, So carb kit came in and got carb out fine. Fuel line is toast so went to local shop and the new fuel line (black) recommended by them will not go back in the hole to fuel tank. Tried making a "long point", used some oil, nothing works for me. Should I try a different fuel line? I have changed fuel lines in my Stihl saws and wasn't a problem. Any tricks or hints would be welcome.
Thanks!

Hilltop366 · March 28, 2023, 03:36:09 PM

I find soap works better than oil.

JD Guy · March 28, 2023, 07:48:54 PM

OK, I did get enough into the tank by making a looong thin strip and was able to grab it with some needle nose pliers and pull it into the tank. Sure didn't think the hose would hold up to that much tension but it did work! The Stihl saws seem much easier to me.

DHansen · April 04, 2023, 06:43:10 PM

So is the Husqvarna 40 up and running again?

JD Guy · April 04, 2023, 06:58:10 PM

Quote from: DHansen on April 04, 2023, 06:43:10 PM
So is the Husqvarna 40 up and running again?

Howdy, Thanks for asking! No, unfortunately not

. The carb kit came in great and the carb is rehabilitated but troubles with the throttle cable end breaking off on reassembly have me on hold. I have another throttle cable coming so that's good. The way that cable (really just a sheathed fine wire) attaches to the carb is a joke and you have to be a contortionist to hook it back up. I sure wish that I could get a picture of exactly how the cable is attached on the carb but alas no amount of searching has turned up anything. I should have taken a picture before I took it off but unfortunately did not. (Lesson learned) If anyone here can help me out I would be extremely grateful 8)

DHansen · April 04, 2023, 09:36:24 PM

Does the throttle cable run from the trigger back to the rear of the handle, then through the bottom pad of the handle to the main body. Then comes up from the bottom of the saw to the right-hand side of the carburetor?

DHansen · April 04, 2023, 10:14:43 PM

pencil is pointing to were cable passes through the air filter housing support.

DHansen · April 04, 2023, 10:20:55 PM

pencil pointing to carburetor end at the throttle arm on right hand side of carburetor. Not an easy to assemble cable. Lots to line up. Keep carburetor free from engine until the cable is routed and in the plastic slot on air cleaner housing. Then line up base gasket and two carb mounting bolts. then the last base screw for the air filter support. I bet Spike60 has tricks for doing this one.

DHansen · April 04, 2023, 10:26:37 PM

The cable passes through the metal arm that the idle speed adjustment screw is through. So, cable is between the carb body and the metal arm. The sleeve or cover on the cable has to go on the bottom of the plastic air cleaner housing that was only the cable is above the plastic and behind the metal arm. I hope this helps and is the same design as yours.

DHansen · April 04, 2023, 10:38:42 PM

JD Guy · April 05, 2023, 11:14:27 AM

@DHansen I am so thankful for those pictures, you have no idea! I have received the cable this morning so "fingers crossed" the old 40 will be cutting once again! It does seem odd that the cable rides up and over the front of the carb though, seems like it would be a serious wear point on the cable. Or maybe I am looking at it wrong. I'm going out in a bit and will see if I can master this :D

DHansen · April 05, 2023, 11:22:49 AM

The cable does not go over the top of carburetor.

DHansen · April 05, 2023, 11:25:14 AM

If you need better photo or different angle let me know. Cable comes up from bottom of saw. Through plastic air filter housing (slot in plastic) behind idle screw arm and connects to carb.

JD Guy · April 05, 2023, 11:29:42 AM

OK, after looking more closely at the picture I see what looks to be a screw driver shank under the cable. Now it all makes sense to me. I'm very grateful for your help and patience. If I were closer dinner and drink's would be on me!