- Local time
- 4:27 AM
- Jan 5, 2020
Get another compression washer and add it to the one already there, give you a little more clearance.The new rings should be close to broken in after a couple of tanks of gas. That hill I used to peddle assist to climb? It climbs without peddling. Compression tested when cold is 92 psi. I don't want to remove the spark plug when hot but if I start the bike too slow on dirt the rear tire skids so I'm sure the compression is higher when hot.
When I took out the chinese plug to do the compression test I replaced it with a NGK BR6HS. It's too long for this head. The electrode tapped the piston and closed the gap. Luckily it didn't cause any damage other than to the plug. Is there a shorter NGK plug for these engines?