QuestionQUESTION: I have a craftsman 5.0HP snow thrower. Model #536.886141. The engine would
die with thick snow, if it started at all. I replaced the carburetor kit (part
640084B from Tecumseh). It leaks gas out the side by the carb when I press the
primer button. I didn't inspect where the gas was leaking from, but I didn't
know where I should start looking. Any main problem places to look?
ANSWER: Ed
You may have a carb problem when it wont run under a load here is a list of what you can check.
Problem: Engine lacks power (possibly after warmup).
Possible causes:
Old gas, bad spark plug, very thick/dirty oil.
Choke is partially closed.
Carburetor needs adjustment or service.
Ignition not timed correctly.
Air filter is clogged.
There is a lack of lubrication.
Valves are not sealing properly.
Piston rings are not sealing properly.
Head loose or head gasket blown or damaged.
if this is a new carburetor then a gasket is missing or bad.
---------- FOLLOW-UP ----------
QUESTION: As a follow-up, what is the possible source of the gas leak when I press on the
primer button?
AnswerED
Sorry about the delay I was out of town.
The primer button may have a bad gasket or a defective bulb.
You may have a gasket missing,have you checked the float bowl to see if the bowl is on tight and that the o-ring is in place. You may also want to check the float to make sure it is place and didn't come loose or get out of adjustment when it was shipped.
