Installing A Big Bore On A Zuma BWS 125 (155cc)

Ever wonder what it takes to install a simple 155cc bog bore, upgraded camshaft, and larger injector

Well watch this video it will show all the steps to install one. You will still need to look in the service manual for more detailed instructions, and torque specs.



Special tools needed
Torque wrench capable of doing 15ft lbs
Slide hammer
impact driver
P3 philips screwdriver and driver tip for impact gun
feeler gauges, special valve adjuster tool (part# can be found in service manual $4)

along with basic socket set, hammer, rubber hammer

I do use small scissor lifts around $60 on ebay
highly recommend at least 1 for supporting the bike as you can adjust the height very easily to match the centerstand height

And a way to strap down the front of the bike you dont want to risk it falling over during the work.