I'm getting 140 lb compression. Is that enough and if not can I upgrade to 46mm and make it super?
Thanks all.
Jason.
Thanks all.
Jason.
Can you pull the muffler and get some pics of the piston and cylinder?That is my next question. I've never dealt with the older style that has points. I see a ton of aftermarket ignition modules that seem to bypass the point setup, if I go that route do I have to replace the flywheel?
The 028's came with one of three size Pistons 42, 44, 46mm. What is the best way to tell what I have?
And third. I inherited the saw so know nothing about its past. When I got it was froze up, or when you pulled the rope it would not turn. I sprayed a decent amount of Arokroil through the spark plug hole and let it set for two days. Took the starter off too examine than reinstalled. The piston freed up and seems to hold that 140 pretty well.
No need to change flywheel, just clip the wire going to the points and hook up the kill wire to the electronic coil,
Get a good used oem coil off of a ms290, avoid the chinese junk.
That is my next question. I've never dealt with the older style that has points. I see a ton of aftermarket ignition modules that seem to bypass the point setup, if I go that route do I have to replace the flywheel?
The 028's came with one of three size Pistons 42, 44, 46mm. What is the best way to tell what I have?
And third. I inherited the saw so know nothing about its past. When I got it was froze up, or when you pulled the rope it would not turn. I sprayed a decent amount of Arokroil through the spark plug hole and let it set for two days. Took the starter off too examine than reinstalled. The piston freed up and seems to hold that 140 pretty well.
The wires going under the coil are to the points/cond.Top of the piston looks flat. It has a small dimple stamped in the middle and an arrow pointing towards the exhaust port. I tried to get a picture but without breaking it down I couldn't.
Here is a better picture of the coil.View attachment 557494
So would mine having the flat piston indicate a 42mm?You need to measure the diameter of the bore or let us see the very top of the piston, the Super has a pop up on the piston dome, the regular 44 mm has a domed piston.
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