|
|
Post by ken8831200 on Oct 17, 2020 7:20:05 GMT -5
I have two Super 2 saws, one since the 1970's and one I just bought this summer. I like them a lot, good size for the wood I have to cut.
But I have one problem with both of them, might be a problem they have with me?
They will run great while cutting right up till the tanks are dry, but if shut off, say at half a tank it is just about impossible to get them to start back up.
The one I have had since the 1970's has been this way since new so I don't think it has anything to do with age of saws.
And I have tried several different things, like choking, choking with throttle off or on, no choke throttle off or on but have never found a method that worked.
Not really sure if this is just the nature of a 2-stroke saw or something to do with the design of the Super 2. It's usually not a problem as if saw won't restart I'm usually ready to a break myself so might be the saw is telling me we both need to call it a day!
|
|
|
|
Post by edju1958 on Oct 17, 2020 9:18:54 GMT -5
I'm wondering if your saws are somehow vapor locking?I don't really know that much about the Super 2 model other than they're a PITA to work on (any saw IMO where you have to pull the engine out of it's case to work on is a PITA).
|
|
|
|
Post by forester76 on Oct 17, 2020 14:01:13 GMT -5
Sounds like vapor lock. Remove the spark plug and pull the starter cord a few times, then replace the plug and see if it starts. I have a super 2 and this works for me. Although, I don't have the problem routinely
|
|
|
|
Post by ken8831200 on Oct 17, 2020 14:19:59 GMT -5
Sounds like vapor lock. Remove the spark plug and pull the starter cord a few times, then replace the plug and see if it starts. I have a super 2 and this works for me. Although, I don't have the problem routinely I'll give that a try next time I'm using one of them. I almost thought my 1970's saw was heading for the scrap bin when it was almost impossible to start and if it did it smoked like an old freight train. Then I found out the pressure line to the oil tank was missing the duck-bill, that tends to let it suck a bit of oil into the crankcase!  |
|
|
|
Post by undee70ss on Oct 17, 2020 21:54:46 GMT -5
If the low mixture screw is set to lean, that will also cause hard starting.
|
|
|
|
Post by ken8831200 on Oct 18, 2020 8:02:16 GMT -5
If the low mixture screw is set to lean, that will also cause hard starting. Thanks, I'll give that a try too! |
|
|
|
Post by rowdy235 on Oct 18, 2020 22:54:51 GMT -5
When was the last time you had the case apart? I had a super 2 do something similar, I think a lot of the issue was so much packed sawdust it was causing the heat to transfer into the fuel tank/hose causing vapor locked. Cleaned it out and no issues.
|
|
|
|
Post by ken8831200 on Oct 19, 2020 18:37:07 GMT -5
When was the last time you had the case apart? I had a super 2 do something similar, I think a lot of the issue was so much packed sawdust it was causing the heat to transfer into the fuel tank/hose causing vapor locked. Cleaned it out and no issues. Both of these have been cleaned often and did not seem to make a difference. Not sure when I will be doing any major cutting as I have at least two years of firewood in the shed right now. But if weather stays cool and dries up some there are a few dead trees I have marked to come down. Now with weeds dying down and leaves off the live trees it is a bit easier to get in there and cut out the dead ones. |
|
|
|
Post by onlyhomelites on Oct 21, 2020 20:30:26 GMT -5
You've gotten some good advice about cleaning everything out. You could also have a stiff metering diaphragm in the carburetor...this would hold the needle open and allow the saw to flood out. If they've never been apart, a good cleaning, carb kits, hoses & duckbill valves might be in order!
|
|
