400ex slip-on
#5
I put an HMF on my wife's 400ex and it really made a big difference.
I bought it off eBay and it included new jets too.
I also propped open the back of the airbox lid by removing the lid, flipping the two rear lid clamps into the box and then reinstalled the lid. This left about a 1/4" gap along the back of the lid and it works great with the jetting and pipe.
I bought it off eBay and it included new jets too.
I also propped open the back of the airbox lid by removing the lid, flipping the two rear lid clamps into the box and then reinstalled the lid. This left about a 1/4" gap along the back of the lid and it works great with the jetting and pipe.
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