Search results

Arborist Forum

Help Support Arborist Forum:

This site may earn a commission from merchant affiliate links, including eBay, Amazon, and others.
  1. kurt

    920 jonsereds won't fire ?

    well its gettting a 42 inch bar and a mill setup mounted to it here soon
  2. kurt

    920 jonsereds won't fire ?

    got saw running today cylinder took hours to clean but good as new new vec piston. only problem i had was the saw was not run for years the pull starter lobes on the flywheel one of the clips gave out i broke 2 fins off unfortuneatly. i cut a new bolt set on my lathe lastnight starter engages...
  3. kurt

    How much Compression is needed for a old Jonsered to run?

    yea i have a 920 good spark fuel compression at 95 psi is a no go. im waiting for my new piston to come in the mail old piston was chewed up from a 50:1 mix being run in it. the manual calls for 40:1 on older saws i usually run 35:1 in my 2 strokes with additional lucas fuel stabilizer in it so...
  4. kurt

    will jonsereds 920 accept a 2094-2095 top end and piston ?

    need info guys what can you give me here
  5. kurt

    920 jonsereds won't fire ?

    yea the rings are melted into the piston in a 1/8 inch section of the piston the cylinder still is cross hatched hopefully it will clean up ok
  6. kurt

    920 jonsereds won't fire ?

    I've only got 93 psi compression
  7. kurt

    920 jonsereds won't fire ?

    Mechanic in the navy for 4 years, I built a 1978 GS 750 motor ported polished milled and have good mechanical understanding. But I don't know everything that's why I'm posting
  8. kurt

    920 jonsereds won't fire ?

    I found the saw on Craig's list I'm planning on mounting it to a chainsaw mill setup. I have a lathe in my shop cylinder heads are hard to find I might cut and sleeve the cylinder . I'll check compression today. But my gut says spark issue are there any coils that will retro fit it
  9. kurt

    920 jonsereds won't fire ?

    I will have to do that the exhaust side of the piston does have some scaring. I don't have a compression gauge in my shop I'll check these things tomorrow. I got the saw cheap if it needs a new cylinder and ignition I won't be to heartbroken. Smart thinking on the tdc mark
  10. kurt

    920 jonsereds won't fire ?

    Checked key its just fine re set charging pickup with feeler guage . Exhaust is free flowing. My spark looks good I'm wondering if it could be the coil ?
  11. kurt

    920 jonsereds won't fire ?

    I purchased a 920 last night for 250 bucks. It has great compression cleaned carb new lines it has spark as well thing will not fire or anything. Need advice
Back
Top