Husqrvana snow blower

[ryan]

Half rant, half not sure what my plan is.

I have a 3 year old Husqrvana and it's been used once. Last year I go to start it for the season, and it won't fire, has spark, is getting fuel. I pulled the carb off to clean it, found both of the gaskets are rotten and blown apart. When I'm putting it back together I broke the stud off just using a 3/8 ratchet. I kick it a few times, and we never got any snow, so now it sits for until this season. I put the new stud on, to go fire it again, same issues. But now I'm looking at the fuel line is cracked and leaking. What a total piece of shit

Now I've got a snow blower I've used twice that won't turn over, even on starting fluid. Just get some backfiring from it on that. I feel like I had to have missed something obvious, but I'm too full of rage at it to look at it calmly and rationally. Anyone has any suggestions, I'll take em

 

[bobbywalter]

buy a new 20 dollar carb on amazon. get 2.

use real gas....and pickle it when you are done.... our fuel is a fucking joke. i will load it with wd 40 if i have to when they are gonna sit

if you can get real gas it wont matter ... that shit will keep for years.

 

[Shran]

I swear there is something in the metal or gasket material that makes fuel go bad sooner. I have a little Shindaiwa weed eater that can sit for years with 2 stroke gas in it and it'll fire right up like the day I put it away. My old Monkey Wards tiller...same deal.. ZFG. But my Honda mower will not start at all if it sits for more than a month or so unless I feed it a bunch of ether. Same deal with my wood chipper and the larger generator. I have pulled the carbs apart and they're always full of green goo.

Anything I don't use a lot (several chainsaws, concrete saw, post hole auger, pole saw, water pumps) get the fuel dumped out right after use and I leave the gas cap off to dry the tank out. If they have a primer bulb, push that till it's totally empty. Pretty hard to do that with a snowblower though, maybe you need to add a drain valve in the fuel hose somewhere.

Most of my 2 stroke equipment gets used so infrequently that it's worth buying a gallon of premixed fuel and running it off that entirely or dump the tank and run a bit of that through it before it's put away. That has helped a lot.

 

[ryan]

Backfiring like crazy

Fresh gas, cleaned out the carb

 

[Shran]

That makes me wonder if your intake valve is sticking. Or the woodruff key on the flywheel has sheared off and the timing is off just a hair. Not many other good reasons that it would backfire through the carb like that on a single cylinder engine.

 

[ryan]

My next thought was to pull the valve cover off and see if there's something obviously wrong, but beyond that I'll be pretty lost

 

[ryan]

This explains some more. Done with this for today

 

[ryan]

That is a very stuck intake valve

 

[bobbywalter]

also a thing that shit gas does to oil...

 

[bobbywalter]

This explains some more. Done with this for today

well, mechanical issues are mechanical issues...


i need to make a mechanical decompress for my john deere before winters out.


how did the carb look port wise?

i was using mob and ez oil diesel aid for a long time...but this shit she is doing seems pretty good so far.

 

[scotts90ranger]

I had that exact problem on my boat! Some jackhole rebuilt the engine (351W) and put oversize stem valves in it that weren't stainless and they rusted in the guides which is dumb... I ended up with a free 350 and they're painting and marinizing it at work for me (awful convenient... very convincing) so for that price I'm converting to GM... will get the 351 working as a spare for good measure but the vortec 350 will outrun the 351 even with the same carb I'm sure...

I was going to suggest kicking it and cussing at it but I'm VERY sure you've already tried that and finding a stuck valve kinda negates that method...

 

[bobbywalter]

351? probably 3 bar heads.

 

[scotts90ranger]

351? probably 3 bar heads.

It used to could, but it lost the hipo heads in the rebuild apparently because they are definitely not the 3 bar... life got busy, was discouraged since I would need to find a machine shop (not common anymore) to put in valve guides and get new valves and an old coworker was repowering his boat from the TBI 350 and just gave me the old one... it's in MUCH better shape than the 351 and it's a bolt in 50 hp boost pretty much... I'm going to have very little cash in the swap... and it's gonna be a pretty purple

Not to threadjack Ryan, you know how it goes around here

 

[sgtsandman]

This explains some more. Done with this for today

I had similar issues with my Stihl string trimmer. I was about to suggest looking at the valve lash, since that is a known issue with the Stihl engines. But it looks like you found the issue.

 

[bobbywalter]

utv winz KOH? did i hear that right?