How To Fix A HUSQVARNA 235 Chainsaw That Leaks Gas--Oil Line Replacement
Gas leaking is a common problem on chainsaws. Before your chainsaw catches fire, you need to take a good look at it and find out what is wrong with it.
The most likely reason for a chainsaw to leak any gas from the engine is a carburetor issue or a fuel line problem.
Step 1: The first thing you need to do is to remove the top cover to check the fuel line condition. If the problem is the return line from the primer bulb to the fuel tank has broken off, you can just replace the single fuel line but it’s best to replace all the lines at once.
Step 2: Unfortunately, on Husqvarna 235 chainsaw, you need to take a portion of the saw apart. You have to remove the handle assembly first and disconnect the throttle linkage from it. After that, there is a part of the case that you also need to remove to get full access to the carburetor. Remove the air filter retainer, the air filter itself, and the screws and the nuts that hold the filter base and the carb to the engine.
Step 3: Now you can disconnect the fuel lines and slide the carburetor off the studs. After the carb out of the way, you can remove all the fuel lines and start installing new lines. To help install the line, it is better to cut the line at an angle and use some bent pliers. If you need to install a plastic splice after pulling the line out, you can cut the angle piece off and insert the plastic splice, then pull on the line until it stops. You can use the same procedure for the fuel filter line, except make sure that the line is long enough that the fuel filter will reach the far side of the fuel tank.
Step 4: Before sliding the carburetor back on the stud, make sure the gasket is still on the engine otherwise the engine may not start or it will run poorly. And you also need to make sure you will connect the fuel filter line to the right side port, then you can slide it back and connect the line from the carb to the prime bulb.
Step 5: Check the fuel system is working as it should. Put some fuel in the tank and then try primate to make sure it flows from the tank to the carburetor then the primer bulb and then right back to the tank through the return line.
Step 6: Put everything back on.