Unfollow valve clearance to stop getting updates on your eBay Feed. You'll receive email and Feed alerts when new items arrive.The first time I adjusted my valves I took mine back apart just to check it all again. Here's a Google Search of how to do the adjustment. You'll need to be careful on which ones you use as some of these engines use different clearances. Google 150cc GY6 Valve Adjustment Read up on it and don't be afraid to ask a lot of questions.
Fits all GY6 150cc 157QMJ engines, or 125cc engines that were upgraded to 150cc. The cover does not have an SAS connection. Note: Make sure that the valve clearance is fine after mounting the rocker arm.
Head comes with performance springs, retainers and keepers intake valve is 27 mm, exhaust is 23 mm. Performance A9 cam included. Your current cylinder must be style A for this kit to work. If the fins on your cylinder look different than the one in the picture then the kit may not work. May require the case to be milled.