Hi This is my first post, so bear with me. I am converting a Homelite 33 cc engine that I took out of the Homelite Bandit chainsaw. Everthing is going pretty good except with the carburetor, when I looked for the needle adjustment screws, all I could see were two recessed round rods with flats on one side. It is a Walbro carb, the only other markings were the numbers 1394 and WT 707. I will attempt to upload a picture that illustrates the problem. Is there a special tool that I need to adjust them? If so where do I find one? I hope someone can help me with this, I' stuck.

Yes, those are the adjustment screws. If you can, grab them with a pair of needle nose pliers, or a pair of hemostats, and count the turns to gently close them. Write this down, and then unscrew them all the way out. Then use your dremel tool with a cutoff wheel, and grind some screwdriver slots in them.

Hope this helps,
Good luck,
AV8TOR

Thanks for the suggestion I am going to try it.

Crazymanted,

If you you just bought that chainsaw recently it might not have any adjustment screws. A guy in my club who works a lot with lawn tractors and small engines said that the $#@%& EPA is making small engine mfrs. sell them with no adjustment screws, which screws us!! The weedies and chainsaws used to have both adj. screws, then they plugged the idle screw, and now it looks like they're plugging both of them!

Your only solution might be to get an aftermarket carb from Carrprecision or wackerengines.com, or a repair shop. Unfortunately, that will cost you another $40.

Jim

Now that I looked at your carb picture closer it looks like the screws can be turned. Please let us know if you are able to get them to adjust. I would like to know for future reference. Thanks.

Jim

Hi, The good news is that they are the needle adjustment screws, the bad news is that you have to work to get at them. After spending quite a bit of time on the phone with a great guy at the Walbro distributor in Ohio, I found out that this is a new design mandated by environmental concerns. The guy I spoke with also found out that there is an adjustment tool, however it will not be available for anywhere from two weeks to two months. I then took my dremel with a cutoff wheel and cut back the casting around the needle screws and then cut slots in the top of the screws. It works just fine and I don't have to worry about any special tool, any slot head screwdriver will do. I hope this helps anyone else that runs into this problem

Thanks. It's good to know that the carbs can still be adjusted. I guess the EPA decided the old plastic caps weren't tough enough to prevent us from breaking them off![sm=lol.gif]

Jim