groove9028
New Member
- Local time
- 5:46 AM
- Joined
- Aug 31, 2010
- Messages
- 4
Hi,
I'm a proud owner of an 80cc zb engine. GREAT LITTLE THING. I've been riding her for the past week. Runs great, leaned her out with the needle, threw in an NGK. Running 40:1. When riding, it accelerates smoothly but occasionally the exhaust goes from a smooth purr to a raspy BRR. I've been made aware i might be 4 stroking. Since leaning out the mixture with the pin is at the leanest, (top notch) can i drill holes into the black air filter cover to promote better air flow, perhaps leaning out the mixture? Any recommendations would be GREAT!! HAPPY RIDING!
I'm a proud owner of an 80cc zb engine. GREAT LITTLE THING. I've been riding her for the past week. Runs great, leaned her out with the needle, threw in an NGK. Running 40:1. When riding, it accelerates smoothly but occasionally the exhaust goes from a smooth purr to a raspy BRR. I've been made aware i might be 4 stroking. Since leaning out the mixture with the pin is at the leanest, (top notch) can i drill holes into the black air filter cover to promote better air flow, perhaps leaning out the mixture? Any recommendations would be GREAT!! HAPPY RIDING!