Hi guys, need your help again please....

I just finished doing my valve clearance adjustment. When I tried to start the bike, it cranked like one/half cycle very slowly and then the fuel pump prime again.

The headlight, turn signal, horn, all working properly. The gear was in neutral. The kill switch is on. No FI lights

Could this be the battery? Is it possible that the battery can power headlights, horn etc, but not enough voltage to crank the engine?

Or can this be engine issue? As this was my first time doing something as big as valve clearance, I was just worry that I messed up with the placement of camshaft or anything, but as far as I check it with the manual, it's all good. I checked the timing and the rotation, it circled OK. Anyway, even if I miss one tooth, the engine will still turn over, right?

I attached pic of the camshaft timing placement before I closed the head cover just for reference.

Any help would be appreciated. Thanks

 

Anyone please?

 

Does the engine roll over by hand?

 

Absolutely. It requires a lot more power to crank the engine than it does to operate the lights, etc.

As Demon suggested, you might try rotating it manually to make sure there's not something bound up.

 

Updated:

@74demon Tried to rotate it from the timing rotor hole (bottom right), nothing stuck.

There was something tho, after every 2 circles or so, i heard a faint flow of liquid (or something like that) inside the crankcase.

I tried using jump start battery, still won't do.

When I did manual adjustment, I remember turned the timing counterclockwise but no more than 180 degree to get the IN and EX marks level. Could this cause such big problem like this?

 

Could it be oil in the cylinder? When I lubricate my camshaft I was quite generous

 

Looks like this is a big problems judging from the number of replies per view that I got

OK, I gave up and take it to the mechanics.

Thanks anyway guys

 

Update:
All good now. The battery turned out to be critically flat, and my jump starter was old and useless.
Mechanic told me to remove all spark plugs after valve clearance job and try cranking by hand. It happenned that the pressure prevent it to turn.
Expensive lesson.