06 yz450f reliability?

Just curious because im looking at buying a 06 yz450f in the next week, and im wondering what are the known issues with the 06 yz450f's, especially engine wise.

Driveways, manhole covers, and sundials are more reliable, but that's about it.

 

There were very few "issues" that ever really came up with the '06.  One was an apparently small batch of bad bearings on the roller end of the shift indexing lever under the clutch.  Only a few were affected, and it never amounted to a major problem.

 

Use a good oil, change it often, and keep the air filter fresh, timing chain once a year.  In 300 hours, I used a piston, rings, one valve adjustment, and the center intake valve.  Still runs strong.

So there about as reliable as they get then,  and hows the handling and power on the '06 compared to a '02 426?  Is there alot of bottom end? how would the bottom end grunt and throttle response compare to my '02 426?    

My 06 was very reliable. I had to replace the water pump seal twice (I replaced the water pump shaft and bearing the second time as well), but I have had the water pump seal go bad on many bikes I have owned. Other than that it was rock solid.

So there about as reliable as they get then, and hows the handling and power on the '06 compared to a '02 426? Is there alot of bottom end? how would the bottom end grunt and throttle response compare to my '02 426?

Handling is night and day better. As far as the power, you asked that question already.

Ive got an 07 ive had it since 2009 and had no problems with it im onto my second top end rebuild because I ride it hard but dependant on how you ride they can last for years if they are well maintained ie oil changed every so often

My friend has on 08 and he doesnt smash it like I do and he hasnt had to rebuild it and his runs fine no smoke or anything and its all stock so id say there pretty reliable bikes.

I have really enjoyed mine so far.... Just routine maintenance and you'll be a happy camper.

Power everywhere.

Sorry, I can't compare to anything except the 05 yz 250 2 stroke I came off of..... And other than reliability there is no comparison.

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