Flywheel material?

[football55center]

Hello all! I recently bought a 2000 johnson 25 hp. Model number j25rlsse. It only has pull start option. Would like to have both electric and pull start. I want to weld the tabs from the original flywheel onto a toothed flywheel but I dont even know what material it really is. Does anybody know what kind of steel it is? Thanks

 

[racerone]

Cast iron.----I do not believe welding is the best option.

 

[Shawnfish80]

Why not buy the right flywheel???

 

[F_R]

Modifying flywheels must be one of the most dangerous things you can do. I used to know a man that had one explode in his face. Resulted in skull and brain damage.

 

[Sea Rider]

Flywheels are darn expensive for what they are, surely the integrated magnets accounts for skyrocketing the final price, check at a scrap yard second, third hand ones it's the best option.

Happy Boating​

 

[dingbat]

One would assume cast steel... but I see lots of comments about cracking. Pretty tuff to crack cast steel.

Either way, pretty sure nothing good can come from rotating a #25 unbalanced flywheel at 5000 rpm

 

[racerone]

There may be a way to fit an older steel ring gear onto these new cast iron style flywheels.----Will get you the end result you seek.