Which way is on ?

[woodfarmer]

Thanks ato you all, I will now try to start it with the "I/1" depressed.

 

[Random Orbital Bob]

How did you get on?

 

[Bluekingfisher]

It would appear from your posts you are having trouble starting the saw which ever way round you try it??

Chainsaws and other lawn tools can be tricky to start (as you are finding), assuming there are no electro/mechanical problems or varnishing problems the simple way to start it is this-

From cold - apply the choke full open, pull the cord until you hear it try to start, usually one or two pulls of the cord. At this point knock the choke to either half way or close. Pull the cord again, It should now start OK. Just let it run for a short time before you start to use it. Most starting problems are caused by flooding the engine, generally because, it doesn't start so I'll keep pulling and pulling on the starter cord in the belief it will eventually start, it won't. The problem is you will have flooded the plug with fuel. If this does happen. Take the plug out, dry it with a rag and proceed again as described above.

Always start with the simple solutions first before you start to strip it all down. The points mentioned earlier by contributors are good maintenance procedures, such as draining the fuel and letting the engine run until it stops. I do this every time I use a 2 stroke power tool. It only takes a second to charge the tank and saves you all this grief when starting

Good luck

David

 

[RogerS]

.....
In the uk a light switch is on when the toggle is down. ....

That depends on the electrician! And what about two-way switches !!!

 

[custard]

Mafell have a very clever device on their tools, if the tool is switched on when it's plugged in (admit it, we've all been there!) the tool fails to start.

I don't own any Mafell tools, but I wish I did as I've used a few of them in various workshops and they're just that bit above Festool and Lamello in quality and design terms.

 

[Random Orbital Bob]

more years ago than I care to remember, I owned a somewhat classic moped called a Yamaha FS1-E (or Fizzy) as they were known. Most of the time was usefully spent with your chin on the tank desperately trying to prove you were faster than the Suzuki AP-50 that lived 2 doors down, and that downhill, with the wind behind you, you swore it reached 50mph!

Anyway, said moped had little more than a lawn-mower/chainsaw 2 stroke and when (inevitably) it wouldn't start, the trick that worked more than any other was this:

- remove supressor cap and HT lead from plug
- remove plug with plug spanner.
- pick up plug in oven gloves and light gaz blow lamp
- heat electrodes (after checking gap is correct) with blue part of flame to avoid sooting it
- while red hot replace in cylinder and replace supressor cap
- now start as though a warm start ie no choke and 9 times out of 10 it will defeat the gremlins

If it still doesn't start you absolutely must test that its sparking with my earlier test in this post because your diagnostics need to take in the electric system. If it is (but wont start) I would next check the fuel system and I'd start with the carbs and filter, looking for tiny blockages.

 

[paulm]

more years ago than I care to remember, I owned a somewhat classic moped called a Yamaha FS1-E (or Fizzy) as they were known. Most of the time was usefully spent with your chin on the tank desperately trying to prove you were faster than the Suzuki AP-50 that lived 2 doors down, and that downhill, with the wind behind you, you swore it reached 50mph!

I had an AP50 Rob, and it always started, and I'm pretty sure it got to 53mph downhill with a following wind 8) :lol: :lol: :lol:

Cheers, Paul

 

[Random Orbital Bob]

haha...I knew an ex Ap owner would come on and claim that...in fact, I'm surprised you didn't say 60 Paul

Yeah I know I know, you removed the baffles and "de-coked" it with caustic soda then filed the ports

Remember the Honda SS-50 (or sewing machine as they were known)

 

[dickm]

One other tip with recalcitrant 2-strokes is to take out the plug and rub the electrode with a graphite pencil, preferably a 2b or similar then pop it back in and start as normal.
But +1 for all the other suggestions.
Two strokes are wonderful machines - there are only a couple of things you can adjust, but still the little beggars won't work (hammer)

 

[paulm]

haha...I knew an ex Ap owner would come on and claim that...in fact, I'm surprised you didn't say 60 Paul

Yeah I know I know, you removed the baffles and "de-coked" it with caustic soda then filed the ports

Remember the Honda SS-50 (or sewing machine as they were known)

I did take the baffles out now that you've reminded me, and added drop handlebars :lol: :lol: :lol:

Those Fizzies never stood a chance

Cheers, Paul