Snowblower stalls out when warm/hot?

[Howie]

I have an old (25++ years old) Canadiana 10 HP Snowblower with a Tecumseh motor (HM1001590130). It runs ok for a while but after I have used it for a while (20-30 minutes), it wants to stall out. I can keep it running if I engage the choke before it stalls, but it mis-fires fairly bad and is tough to keep running... It is an old machine but still has pretty good power, until it wants to stall out... Each time I use the blower, I get most of my snow cleared before it stalls out....Any ideas?

[Oren]

SPARK PLUG

[S. Barker]

i'd be checking the venting on the fuel tank. next time it does it, take and loosen the fuel cap. see what that does.

s

[Tony Hwang]

Hi, Does it have ignition module? If it does, it may be heat sensitive. Right after it stalls out,see if it has good spark.

[Howie]

It has electric start, not sure about an ignition module... it is 25++ years old, if this help...

[Howie]

will do...

[Howie]

I changed the spark plug last year and it still stalls and misfires when warm...

[Oren]

I've got a nickel. Bad plug..

I can be wrong...simple enough to exchange.

[Oren]

Change it again and be happy....

[Bubba]

Work faster removing the snow. Bubba

[ransley]

It sounds electrical, after 20 minutes its warm, ignition modules failing often do so when hot, see if spark is bad when it happens.

[PaPaPeng]

This can happen if the engine overheats where the metal parts expand and seize up the piston. If 4 stroke check your oil level. If two stroke be rigorous in follwing the oil fuel mix ratio. Mine is a two stroke 50:1 mix ratio. It was sensitive to too much oil (guesswork when adding the oil) in the fuel and developed the symptoms you described among other annoyances.

[Howie]

it is a 4 stroke...so see if the oil is low? I don't think so...

[Howie]

I'll will check the spark the next time I use it...

[Howie]

LOL... good one!

[Howie]

LOL... good one!

[Howie]

While I'm talking to you guys, would it be a good idea to run synthetic engine oil in this old girl? If yes, what grade?

[Howie]

While I'm talking to you guys, would it be a good idea to run synthetic engine oil in this old girl? If yes, what grade?

[Howie]

While I'm talking to you guys, would it be a good idea to run synthetic engine oil in this old girl? If yes, what grade?

[Howie]

While I'm talking to you guys, would it be a good idea to run synthetic engine oil in this old girl? If yes, what grade?