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View Full Version : honda 400ex rebuild



jcole1988
04-11-2011, 11:25 PM
i would like to put new piston rings, and install a new carburator in my '01 honda 400ex. could anyone give me instructions on the piston rings, i can already take the plastics off, i just need some instruction on the engine dissassembly and re assembly part...thank you.

kt1148
04-12-2011, 06:16 AM
I think the best thing is to get a Clymer service manual and go from there....

SamC8
09-06-2012, 01:50 PM
There's a entire DIY on this, I just rebuilt my 400ex using it. Let me find it and share the link.


http://www.hondaatvforums.net/forums/repair-maintenance/21959-how-rebuild-top-end-400ex-fourtrax.html#post221864

Drifterboy3
03-28-2013, 10:13 AM
get a yfz450 carb bigger for more power, and an easier swap thanthe 450r carb

Atvers
08-12-2013, 08:25 PM
First of may I ask if you are an experienced mechanic, and do you have the tools on doing it? If not better to have it done in a shop to avoid messing it out. If your a mechanic I agree get a Clymer service manual to guide you in doing this. Good luck.