Lightweight Flywheel Install/Won't Start

[thorn14]

I've got a 2002 Ducati Monster that I attempted to install a lightweight flywheel on, when going to start it however, it won't.

When I go to start the bike, all I get is a click from the starter, then the check engine light comes on.

I've taken it apart twice to verify that the sprague clutch was oriented the correct way, as well as reread instructions. From what I know, the clutch should allow the flywheel to rotate freely in the clockwise direction, while it should lock when going counterclockwise with the crankshaft.

Also, in the instructions, it was stated that when assembled properly, the order of assembly is ring-clutch-flywheel. With this the clutch should supposedly not be able to come out as it has a flange type lip on it. So as far as I know I did assemble it correctly.

I checked the battery and had 13.2v and when cranking it dropped down to 8-ishv. I also put the bike in gear and CANNOT move the wheel. This seems strange to me, which makes me think somethings wrong, but aside from the sprague clutch, Everything else was clear and simple.

So I'm completely lost as to why my bike won't start. My immobilizer is disabled, kickstand up, and in neutral. It last ran on Thursday on 300 mile trip and hasn't had any issues for over 10k miles. The battery was purchased in April and has done about 15k. Fuses all seem fine. I removed the shim from the airgap thing as I'm using a cacycleworks gasket.

So what can I check before having to rip open the alternator side, lose more oil, and torch away the red locktite?

[ducpainter]

Is it possible the 3 gears aren't properly aligned/meshed?

The fact the motor is locked says something is definitely wrong.

[thorn14]

Well I checked them before putting the case back on and they all spun. I had to really work hard to get the flywheel to turn when I installed the two lock nuts. So is it possible I tightened them too much?

Edit: I think I was between gears or something. I can now spin the wheel and managed to get it back into neutral. So I'm still stuck.

Another Edit: Double checked everything including the airgap, battery, and fuses. The wheel also is unstuck. So I tried firing it up again and got it running but it sounded very weird and kinda of metallic. I normally have earplugs in when I start it so that might be part of it. I only had it running for maybe 30 seconds. The noise seemed to be coming from the right side of the bike and not the left. I'm almost due for a valve check (4,000 miles since last check at 38k) could poor clearances be aggravated from a new flywheel?

When I killed it, I saw faint smoke out of the right tailpipe, should I be concerned about this? And does a new flywheel make a completely different sound aside from revving up and down quicker?

Lastly, since the crankshaft has two marks on the end, and retracing steps, one is supposed to have a second notch close to the flywheel, is it possible I got it 180 degrees off?

[ducpainter]

The smoke is a non issue.

If you didn't move any other gears there is no way a flywheel swap can affect the engine 'timing'.

The torque on the flywheel is a non issue unless it's loose.

I don't think the valves are the problem...

and the flywheel could totally change what you're used to hearing.

[koko64]

A light flywheel can certainly change the rhythm of your clutch noise. You may need to up your idle speed a little to compensate. I hope that's all it is. Pull the clutch lever to quieten it and listen again.

[scduc]

I did my S2R last year, and if I recall correctly, it is very important how the "bearing" goes in. One way and the flywheel will lock, and the other, the flywheel will spin freely.

[thorn14]

I think after it wouldn't start I got extremely paranoid so the sound took me by surprise and I wanted to make sure nothing was out of the ordinary. I triple checked everything minus removing the case again and started it up and adjusted the idle and took a short ride and everything seems fine now. Thanks.