lizart95

Hi everyone ,
Last time you guys were really helpful at pinpointing the problem I hope that you can help again.A piece of the tensioner broke along with the chain guide and the metal peace broke the engine sprocket wheels.The crankshaft and the two little sprockets at the bottom are almost untacked but the others are in bad shape.
the questions are :
How to remove the sprocket wheel market with red ?
Is something needed to lock the wheels marked with yellow dots ?