Honda TRX ATV Forum banner
1 - 1 of 1 Posts

·
Registered
Joined
·
1 Posts
Discussion Starter · #1 ·
Hello everyone, I’m new here.

I bought a 2004 Honda 400ex not running. I have found out that the intake valves are barely hitting my piston. I can see marks on my piston and valves. Everytime the intake valves gets pushed down it locks up and I can’t spin the motor over. I have the bike in time correct. It’s at Top dead center (T), cams lops facing down, the two lines on the sprocket are horizontal, I have the intake valves set to 0.10mm and exhaust valves set to 0.12mm. I thought maybe the valves are bent so I bought another head cylinder with new valves and I still have the same problem. I even thought the piston was in backwards but it looks like the valves matches with the valves reliefs on the top of the piston. It has a stock piston and a stage 2 hot cams.

Does anybody know my problem is? Thanks!
Wheel Tire Automotive tire Rim Cylinder

Automotive lighting Motor vehicle Automotive tire Rim Automotive wheel system

Automotive tire Motor vehicle Grey Alloy wheel Rim
 
1 - 1 of 1 Posts
Top