Install Ignition Chip on a Chainsaw

In this video I show how to replace the ignition points and condenser with a modern electronic chip. Excruciating details on how coils work too ... you've been warned.
#chainsaw #ignition #homelite
Homelite 150
Oregon 33-053 Chip

[@jonparkmac]

Follow up. She runs great in the wood. I cut up a bunch of fallen trees and ran perfect full rpm.

[@astakiotis]

Could you please be so kind to advise the name and link where we can find that modification spare? Thank you in advance

[@jonparkmac]

Oregon 33053 Oregon 33-053 Ignition Parts, Black/Grey a.co/d/0aBPk7Zi.

[@astakiotis]

@@jonparkmac thank you very much.

[@simonwiggle1791]

Hi, interesting video. Could you tel me how the chip 'knows' when to spark now the points aren't running on the flywheels cam lobe ? There isn't any magnetic point of reference on this older design of flywheel is there.. Many thanks from the UK..

[@jonparkmac]

I had the same question. My theory is it's triggered by the shape of the current curve as the magnetic field builds up in the primary coil. When it reaches a certain point, it grounds the coil and the energy built up is induced into the secondary coil. It's the only way it can work. And it does appear to work real good. It runs very smooth topend.

[@simonwiggle1791]

@@jonparkmac Hi again, thanks for your reply.. Interesting theory, but I still don't get how it gets it's trigger point anyway near 2mm from TDC etc. I've sent the same question to a supplier of these chips on Ebay. I will let you know what they say.. You may well turn out to be right..lol..

[@jonparkmac]

​​​ @simonwiggle1791 only 2 wires ..ground and coil. So the only possible signal comes from the coil. I believe it Darlington resistors. www.foxvalleykart.com/timing2.html

[@simonwiggle1791]

@@jonparkmac Thanks for the link. The Ebay seller couldn't really answer my question. However they said that these chips won't work with 'multiple magnet' flywheels or any Stihl hand held equipment ! Make of that what you will. Thanks again for your interest and help..

[@dennisharrison4744]

Iv got crasftman 3.7 / roper made them some one has a chip on it I zapped the coil with a 2amp battery charger it wasn't firing fires now iv did a bunch of saws that way some guys bakes the coils I zap them iv got realy strong runing super xl I did that way

[@jonparkmac]

I believe you. I'd wonder why it makes it work and how long that will last. Usually a failed coil is short in the winding

[@deandepew7455]

😂😂😂😂😂

[@NordicDan]

I recently dug out my old 150 that has sat in pieces in a box since 2013 (shocked it wasn't hucked into a dumpster while my ex wife still lived here during our divorce) and decided since I still haven't put it back together I'd go ahead and convert the ignition. Looking through my old papers and printouts I had with it, I had referenced a John Deere M70114 chip that looks very similar to the chip you use (though definitely not identical). Have you run it much since your first follow up with this Oregon chip? If yes, are you still liking it?

[@jonparkmac]

@NordicDan yep, she's been running real good after about 2 hours on it. I also have another video on the rest of the rebuild for this one

[@Prepper1872]

Will this fix no spark

[@jonparkmac]

Yes it can. But so can a bad coil or bad magneto gap. You can test the coil with an ohmmeter. Gap it with a thin business card