Kr engine

Hey guys I'm having problems timing up my kr engine . I had it running with all marks lined up. But I needed to put new belt on but now I can't line all the marks up. I've even tried putting old belt back on with no joy. I've search google n forums for a step by step but can't seem to find 1 . My main problem is when I tighten the tentioner the bottem end moves
Spent few hours now pulling my hair out lol

Do you have the tensioner fitted the right way round?

If its moving, can you do a 'trial' tension-up, see how much it moves by, then figure out how many teeth its out by. Then loosed it up, click along the required number of teeth, and tighten it up again.

I've tried that seems to be 1 tooth to far n 1 tooth not enought if u not what I mean .

I don't think you'll get it perfect, you'll be half a tooth out at the worst. Just flip a coin and decide which way you want it. One will give you slightly more torque at lower revs and less at higher; the other, the reverse. Whatever you do, once you've tensioned it, turn the engine over a couple of times as a sanity check that you're done it right, before you try starting it on the starter motor - and check the timing marks again.

I've had it half a tooth out …. Lol so that is normal and it will be ok

Hi,

Out of curiosity which mark on the gearbox are you lining up with?

Thanks Paddy

Hehe the little 1 I've done it now with help from a friend to hold the bottom end