420a engine INTERNAL diagrams?

[Matthew Hamilton]

Hey guys, was looking through the forums and trying to research any kind of internal diagrams of the 420a engine. Im attempting to fix my engine and just kinda was hopeing if there was a diagram showing where like the rods are the pistons just a diagram of the internal part. If anyone knows of one or where i can find it please respond, thanks a bunch fam

 

[bmxunderground]

I'm sure by "internal diagram" you are referring to a service manual. So what I would suggest is view the sticky posts for links to the factory service manual. You will be able to find all of the information you need regarding tolerances and specifications during your tear down and rebuild.

On a personal note, I would suggest developing a relationship with your local machinist. They often times have a wealth of knowledge to share and many times enjoy the energy of a budding enthusiast.

Good luck! Welcome to the rest of your life as a DSMtuner!