Converting a fly wheel to Electronic Ignition
 

I went to BCMA home page and see that they have a CDI Auto Advance Electronic Ignition for 85 bucks.. I like that.... I talk to him on the phone and said that I can put this on any gas engine.. I have a us 35 I want to put it on but I need make the fly wheel work with it.. I need some good ideas on how to do this.. I do not have a lath or know were one is at.. and I need to know were I can get a magnet that I can put in the fly wheel...

Thanks
Paul

RE: Converting a fly wheel to Electronic Ignition
 

You can cut the flywheel down with a hole saw and then dress it up chucked in a drill, by using correct size bolt as a mandrel. The cut down wheel can then be drilled for a small magnet (radio shak, 1/4x1/8" neodymium) Use the instructions on BCMA site for timing. You will also have to make a mount for hall effect sensor on the engine. I use these CDI units. They are compact and work well. Good luck, red

RE: Converting a fly wheel to Electronic Ignition
 

Yes a flywheel can be cut down. However I don't think it will run true without using a mandrel that has a taper to match the taper in the flywheel. Should be easier to machine a new hub and timing ring. Make a plate to glue the sensor to and use a case bolt to mount it. This way the sensor can be located anywhere and timing is a breeze as the ring rotates 360 degrees and is held in place by a set screw. Check out the Echo 2400 thread and the Lathe For conversions thread. Here is a picture of an Echo 16cc I did showing my work. You will need a plug adapter also to use Adams ignition for the CM-6 plug, CH can sell you a box for about the same money if you want to use the regular plug. Ralph at RC Ignitions can fix you up since you don't have a lathe.

RE: Converting a fly wheel to Electronic Ignition
 

Timing kit only, $39.95... includes new flywheel, magnet, sensor bracket and sensor. We have ignitions too..:D]
CH Electronics 307 857 6897

RE: Converting a fly wheel to Electronic Ignition
 

Terry can he use the hub he has to match up to your flywheel? By the way did you get my box in yet?

Tim

RE: Converting a fly wheel to Electronic Ignition
 

Yes a flywheel can be cut down. However I don't think it will run true without using a mandrel that has a taper to match the taper in the flywheel. Should be easier to machine a new hub and timing ring. Make a plate to glue the sensor to and use a case bolt to mount it. This way the sensor can be located anywhere and timing is a breeze as the ring rotates 360 degrees and is held in place by a set screw. Check out the Echo 2400 thread and the Lathe For conversions thread. Here is a picture of an Echo 16cc I did showing my work. You will need a plug adapter also to use Adams ignition for the CM-6 plug, CH can sell you a box for about the same money if you want to use the regular plug. Ralph at RC Ignitions can fix you up since you don't have a lathe.





You have a link for RC Ignitions or a phone # I cant find them.

RE: Converting a fly wheel to Electronic Ignition
 

Check out post number 4 here also. Terry may have the things you need in stock and you can re-use your prop hub. Ralph's name here is Rcign1 his number is 928 635 2455.

RE: Converting a fly wheel to Electronic Ignition
 

I will be going with terry.. I talked to him to day and he is grate to work with.

RE: Converting a fly wheel to Electronic Ignition
 

Yes they are good to deal with. Welcome the conversion club.