'05 YZ450F-what do you guys think about it?


30 replies to this topic
  • tricksta400

Posted October 23, 2004 - 07:35 PM

#1

im about to pick up my 05 yz450f and was wondering what you guys thought about this beautiful blue beast? the goods, the bads, and the uglies please!

  • mxerhale

Posted October 24, 2004 - 08:10 AM

#2

The only bad is the cheap chain, replace it and the rest is all good. Great motor and suspension, you're going to love it.

  • undrdog

Posted October 24, 2004 - 03:18 PM

#3

You"ll love it. And yes, ditch the chain. Has tractor like power and better suspension. I geared mine lower because the tracks I ride are on the smaller side. This is the first 450 I"ve had. Just came off a 250f which was also a very nice bike. I ride open class and needed a little more torque when the gate drops. Have fun !!!

  • Thumper38

Posted October 25, 2004 - 04:39 AM

#4

So far it is a great bike, alot better than my 03. the only thing I did notice is that it seems to be a little lean so check the jetting when you get her! the chain is wimpy and that front tire does not work around my neck of the woods. Other than that it is awsome!!!!!!!!!! :cry: :cry: :cry: :cry: :cry:

  • bzakk

Posted October 25, 2004 - 08:34 AM

#5

I love it! Mine also was a little lean. Like everybody said the chain sucks. I put a dr. d pipe and header on it and it rips!!!!!You wont regret it. :cry:

  • tricksta400

Posted October 25, 2004 - 11:01 AM

#6

HOW DID YOU BREAK IT IN? MOTOTUNE OR MANUAL WAY? WHAT IS THE BEST WAY TO DO IT AND HOW TO DO IT? I NEED IT FOR A RACE ON WEDNESDAY, HOW CAN I PULL OFF A BREAK-IN IN JUST A DAY?

  • condog_aus

Posted October 25, 2004 - 11:16 AM

#7

Do the reccomended break in from the handbook. Its about 2 hours work and that includes cooling time.

My 250 handbbook says
Start it up and check controls then stop it
Start it up and let it run for no more then 5 minutes
Operate the machine in low gears with moderate throttle for 5-8 minutes
Check how the machine operates 1/4 to 1/2 throttle for about 1 hour at low to medium speed (make sure air is moving over the engine).
Restart the engine and check the operation throughout the entire reve range. Restart the engine and operate it for 10-15 minutes.
The machine is now ready for races.

  • SureBlue

Posted October 25, 2004 - 11:23 AM

#8

Do the reccomended break in from the handbook. Its about 2 hours work and that includes cooling time.

My 250 handbbook says
Start it up and check controls then stop it
Start it up and let it run for no more then 5 minutes
Operate the machine in low gears with moderate throttle for 5-8 minutes
Check how the machine operates 1/4 to 1/2 throttle for about 1 hour at low to medium speed (make sure air is moving over the engine).
Restart the engine and check the operation throughout the entire reve range. Restart the engine and operate it for 10-15 minutes.
The machine is now ready for races.


WRONG! YOU HAVE TO BREAK IT IN HARD, but you have to cool it down every 10 mins of riding. FORGET what the manual says.

  • Sparky_So_Cal

Posted October 25, 2004 - 11:29 AM

#9

Awsome bike, Raced it sat and sun at Glen Helen. Pulled two holeshots, a second and fourth w/ +25 guys on the gate. Very fast and easy to ride.

  • tricksta400

Posted October 25, 2004 - 11:31 AM

#10

WHAT DO YOU MEAN?
WARM IT UP
RIP ON IT
LET IT COOL

AND DO THIS IN LIKE 20 MIN RIDE 10 MIN COOL DOWN? IM CONFUSED AND I DON'T WANT TO BREAK IT. HOW LONG SHOULD I DO THIS FOR?

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  • tricksta400

Posted October 25, 2004 - 11:33 AM

#11

what do you mean by hard?

  • tricksta400

Posted October 25, 2004 - 11:35 AM

#12

anyone got an aim screen name so we can chat about this thing so it would be faster?

  • SureBlue

Posted October 25, 2004 - 11:45 AM

#13

WHAT DO YOU MEAN?
WARM IT UP
RIP ON IT
LET IT COOL
AND DO THIS IN LIKE 20 MIN RIDE 10 MIN COOL DOWN? IM CONFUSED AND I DON'T WANT TO BREAK IT. HOW LONG SHOULD I DO THIS FOR?



Yes, yes, yes.
Check everything is OK, oil and coolant levels, warm it up on idle, never rev it cold, it is not a 2-stroke. When warm, run for 10 mins, cool down for 10-15 mins. Do it 6 times and change oil and filter.
Let the engine rev up and use all powerband, do not reach rev limiter. Allow engine braking with all gears, accelerate, decelerate, play with it hard. Don't run it too hot.
Replace the stock chain, it is junk.
Also, before race, put in some decent thick tubes (and tires) It is ready for race. There are plenty of posts about this, do the search "break-in".

  • SureBlue

Posted October 25, 2004 - 11:59 AM

#14

IM CONFUSED AND I DON'T WANT TO BREAK IT.


You are not going to break it. The piston rings need to be broken in with the cylinder correctly, and this is the way. If there is something wrong with the machining tolerances, the bike will seize anyway how you break it in. With today's advanced production techniques you should not worry about tolerances. They say the engines are already pre-run hard in production lines. Do not baby it.

http://www.mototuneu..._in_secrets.htm

  • Sparky_So_Cal

Posted October 25, 2004 - 01:46 PM

#15

anyone got an aim screen name so we can chat about this thing so it would be faster?



There is a chat room here on thumpertalk. Maybe you could organize a group chat w/ any 05 450 owners who wanted to participate.

  • tricksta400

Posted October 26, 2004 - 12:23 PM

#16

todays the day!!!! in about two hours actually!! is there anything else i have to do to make this thing ripe the head off of all the hondas out there? is it alright to run it hard right after break-in and to do like 75 foot triples?

  • Thumper38

Posted October 26, 2004 - 01:11 PM

#17

Let her rip! she is ready hold on and enjoy! :cry:

  • BBRguy

Posted October 26, 2004 - 01:18 PM

#18

The bikes ready, i guess the question is, are you ready to hold on??? BRAAAAAAAAAAAP let us know how the race goes chief. Congrats on the new purchase.

  • machoman_#618

Posted October 26, 2004 - 03:09 PM

#19

I love my 05 450f. I only added a Motoman 393 sticker. Thats all the mods it needs :cry:
Hey BBR guy did you race the GMB at Splendora this year?

  • SureBlue

Posted November 03, 2004 - 05:16 PM

#20

todays the day!!!! in about two hours actually!! is there anything else i have to do to make this thing ripe the head off of all the hondas out there? is it alright to run it hard right after break-in and to do like 75 foot triples?


Hey Ryan,
how did it go? Pls report.





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