03 440ex tick after rebuild. New parts so I’m lost
Just rebuilt my 400ex with a new 89mm piston (10:1) and a new jug. Adjusted the valve lash to stock specs with a HotCam Stage 2. Also has a FCR-39mm carb.
After firing it up the first time this is the noise it was making. I have read up and it shouldn’t be piston slap (new piston), timing chain seems to be good. Maybe go to .13mm/.15mm valve lash? Any ideas are appreciated. I know these all have a bit of top end noise but mine seems excessive. Really don’t want to blindly tear this whole thing down again…
Couldn’t the video to embed for some reason. Link is below: https://youtu.be/oZC1-6pJJY4
03 440ex tick after rebuild. New parts so I’m lost
Just rebuilt my 400ex with a new 89mm piston (10:1) and a new jug. Adjusted the valve lash to stock specs with a HotCam Stage 2. Also has a FCR-39mm carb.
After firing it up the first time this is the noise it was making. I have read up and it shouldn’t be piston slap (new piston), timing chain seems to be good. Maybe go to .13mm/.15mm valve lash? Any ideas are appreciated. I know these all have a bit of top end noise but mine seems excessive. Really don’t want to blindly tear this whole thing down again…
Couldn’t the video to embed for some reason. Link is below: https://youtu.be/oZC1-6pJJY4
03 440ex tick after rebuild. New parts so I’m lost
Just rebuilt my 400ex with a new 89mm piston (10:1) and a new jug. Adjusted the valve lash to stock specs with a HotCam Stage 2. Also has a FCR-39mm carb.
After firing it up the first time this is the noise it was making. I have read up and it shouldn’t be piston slap (new piston), timing chain seems to be good. Maybe go to .13mm/.15mm valve lash? Any ideas are appreciated. I know these all have a bit of top end noise but mine seems excessive. Really don’t want to blindly tear this whole thing down again…
Couldn’t the video to embed for some reason. Link is below: https://youtu.be/oZC1-6pJJY4
