Ce tutorial aims at you help change the chain kit of your boxed 50cc thanks to pics and explanations associated. In this example, this is a typical motorcycle kit AM6 et Derbi Senda but the installation principle is similar on most of the metabots. Don't forget to order the right one chain kit for your bike.
1) Loosen the rear wheel, relax the chain tensioners and remove the brake caliper
2) Remove the wheel
3) ANDLift the chain from the crown.
4) Remove the crown fixing nuts
5) Replace the crown
6) Replace the retaining nuts. To avoid loosening the nuts, put a drop of thread lock on each nut, then retighten.
7) Wind up the wheel, replace the chain on the crown,
8) Loosen the chain tensioners completely
9) For engine AM6, remove the sprocket cover
11) Remove the circlip from the front sprocket
11) Remove the sprocket
11) Place the new sprocket
11) Replace the circlip.
9) In order to DERBI, remove the speed selector.
11) Remove the pinion cover.
11) Remove the two screws from the pinion and then the retaining plate.
11) Replace the pinion. Replace the retaining plate
11) Replace the two screws on the sprocket and replace the chain.
11) Remove the quick coupler and remove the link
11) Connect the new chain to the link
11) Spin the wheel that drives the chain around the pinion and crown.
11) Remove the old chain
11) Close the chain with the quick coupler.
11) The quick coupler must be positioned in the opposite direction of rolling
11) Tension the chain by tightening the tensioners
11) Tighten the wheel. To avoid unwinding the tension when tightening, slip a key between the chain and the crown.
11) Refit the sprocket cover. For the Derbi, forget to reassemble the speed selector.
Replace the brake caliper. Remember to operate the brake pedal to put the circuit under pressure.
Remember to grease the chain carefully
Installing a new chain kit on your box is fairly straightforward but takes time and patience. This replacement is part of the routine maintenance of your machine.
Composed of a pinion, a crown wheel and a chain, the chain kit wears out over the miles and leads to a loss of power. To determine when to change your motorcycle chain kit, a check on these elements should be carried out frequently.