There are a few tricks when installing the flywheel if you have the small taper version?
Been playing around with these for close to two decades now and learned the hard way.
Hi Leino,please share
Ok, some of these tips I learned from a now gone but not forgotten Pro Stock mechanic who really knew his way around Suzuki's and Kawasaki's of the roller bearing era.
Use 12.9 bolts on the starter clutch and loctite them.
Before you start lapping the tapers, make sure they are a good pair. Permanent marker helps.
If they are a decent pair, start lapping. If not, they are not gonna hold together what ever you do, at least on a high performance engine.
After lapping, clean everything really well, make sure you have a good pair of gloves close, warm the flywheel taper (small taper, NOT THE LATER MODEL BIG ONE!!!) to 80 celcius, throw it in and tighten the nut with a power wrench. Air or electric which ever you prefer, just tighten the damn thing
Make sure your starter clutch gear is still turning loosely and has some slack in it. If you end up lapping the tapers a lot, it will sit deeper and if that happens you must take some stuff off the bronze spacer and reinstall.
Let it cool, remove the nut, use loctite and retighten. I usually let it sit for a couple of hours before doing this.
I have never ever used anything between the tapers and to my believe it is better to have good contact between the two surfaces and NOT to fill it with a chemical of any kind. Friction is the key here, not glue.
I hope I didn't forget anything.
Feel free to ask if my writing didn't make sense