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specialk6r

Did I suck dirt in my engine?

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So after I took my WR450 on it's maiden voyage and slid out in an ankle deep muck/mud pit. The engine stayed running, and was only down for about 3 seconds. However, there was visible mud on the inside of the bottom of the breather hose. Does anyone think dirt made it to the top of my engine? I immediatly rode back the the truck and changed the oil. Should I warm it up and flush it again?

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You should be fine. Re route the breather hose to the airbox to save it in the future. It would be a miracle for it to travel all the way up that pipe and get into the cambox.

Out of interest, are the 450's 4 or 5 speed? I have a 400 at the moment but want to upgrade it sometime.

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Thanks guys, that's good to hear. I was planing on rerouting before riding but got impatient. I'm going to Ace to pick up the fitting now.

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Cool!

Are the 450's as robust as the 400's or do their motors need a little more maintenance? Are they much more powerful?

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You should be fine. Re route the breather hose to the airbox to save it in the future. It would be a miracle for it to travel all the way up that pipe and get into the cambox.

Out of interest, are the 450's 4 or 5 speed? I have a 400 at the moment but want to upgrade it sometime.

1. Already done from factory.

2. 5 speed wide ratio. Nice spread for the gears. :thumbsup:

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Cool!

Are the 450's as robust as the 400's or do their motors need a little more maintenance? Are they much more powerful?

Compared to the suzuki 's 400 (that I assume you have), they have a lot more power, but need a pipe to unleash the fury.

The Yamaha 450's don't really need more maintenance (than a DR-Z400), just frequent oil changes. :thumbsup:

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