first 4 stroke!help please.


11 replies to this topic
  • rangz

Posted October 20, 2009 - 10:19 PM

#1

hi guys im new to tt and have just brought a 03 yz450f great bike im just going to service it before i ride it and i got the oil and filter from yamaha but have no idea witch bolts to undo to drain old oil out?and will i also need a torque wrentch to tighten up the bolts with?sorry if these questions sound simple but i just dont know.thanks in advance.

  • grayracer513

Posted October 21, 2009 - 08:18 AM

#2

Start by downloading a manual here:

http://www.yamaha-mo...ice/manuals.jsp

You should also understand that the motorcycle has a dry sump oiling system, wherein the oil is stored in separate area, the frame in this case, and pumped to the lube points, then picked up and returned to the tank. Thus, the dip stick is located on the left side of the frame near the steering head. The engine must have been run within 10 minutes prior to checking the level, or the oil will have begun to drain back into the crankcases, and your reading will be inaccurate.

Read also:

http://www.thumperta...903#post5221903

Simplified oil change procedure:

Do Not remove the oil line or frame screen. You may want to inspect it once, but it's mostly unnecessary.


  • Start and run the engine for about one minute and shut down.
  • Turn the front wheel to one side, and remove the drain bolt from the bottom of the square frame down tube. HOLD A PAN UP CLOSE to the drain port! Replace the bolt.
  • Remove the oil filter cover and replace the filter (or clean it if using stainless mesh. do not reuse brass mesh filters) Replace the cover.
  • Remove the drain bolt from the crankcase, located on the bottom of the transmission, angled toward the rear. Replace when it finishes draining.
  • Refill the system at the fill port on the left crankcase cover. Refill with 1.1 liter if you changed the filter, or 1 liter if you didn't :bonk:
  • Start the engine, run for one minute, shut down and check your oil level.
Torque wrenches should not be necessary if you have a reasonable level of skill and common sense.

You should also read:

http://www.thumperta...ad.php?t=575367

and:

http://www.thumperta...ad.php?t=634724

...and check out the Common Threads sticky in general.

  • Aka.Goose

Posted October 21, 2009 - 09:55 AM

#3

Be very careful tightening the oil bolts...If they don't have them already I'd recommend using copper washers on them, hand tighten, then just a very small amount more with the wrench...The copper is really soft so if you over tighten a little it will "squish" a bit and feel real tight before you strip anything...

  • KrenzyRyan

Posted October 22, 2009 - 03:08 PM

#4

I believe per yamaha spec, you should run the engine for about 3 minutes, not 10 (when checking oil level).

  • grayracer513

Posted October 22, 2009 - 03:54 PM

#5

I believe per yamaha spec, you should run the engine for about 3 minutes, not 10 (when checking oil level).

Who said 10?

Three minutes is better than one, but one is adequate for the purpose, and unless you can ride it, or at least blow air over the radiators, you'll overheat it running much longer than one.

  • rangz

Posted October 22, 2009 - 05:04 PM

#6

thanks heaps to the guys above lots of help! i downloaded the manual and its gona help alot so thanks grayracer513!!!!
have a new oil filter and oil and rubber o rings for oil filter bolts and copper washer so will be in the shed tonight gettin it ready for riding in weekend!cant wait!
and thanks again!

Visit the ThumperTalk Store for the lowest prices on motorcycle / ATV parts and accessories - Guaranteed
  • Aka.Goose

Posted October 22, 2009 - 05:07 PM

#7

I believe per yamaha spec, you should run the engine for about 3 minutes, not 10 (when checking oil level).

Nah, he was just saying you need to check it within ten minutes after turning it off...not run it for 10 minutes...

  • sro2004

Posted October 22, 2009 - 05:11 PM

#8

Grayracer...that may have been the best reply I've ever seen. Very cool of you...

  • mkporn

Posted October 23, 2009 - 07:15 AM

#9

Grayracer...that may have been the best reply I've ever seen. Very cool of you...



Seemed a bit long winded for a oil changing post.....:bonk::bonk:

  • KrenzyRyan

Posted October 23, 2009 - 03:01 PM

#10

Nah, he was just saying you need to check it within ten minutes after turning it off...not run it for 10 minutes...



I see :bonk:

  • mustangGT87

Posted May 31, 2011 - 11:17 AM

#11

can someone tell me where too put the oil in.... in the frame or in the case???? and also.. should i use gear oil in the case or will 10w30 be fine?

  • grayracer513

Posted May 31, 2011 - 01:03 PM

#12

Maybe you could provide a little information about what year/model you have?





Related Content

Forums
Photo

100 hrs on 2014 yz450f, shim valves or replace them? by ttr230rider6


Dirt Bike   Make / Model Specific   Yamaha   YZ 400/426/450
  • Hot  79 replies
Forums
Photo

Megabomb Fitment by 288yz450


Dirt Bike   Make / Model Specific   Yamaha   YZ 400/426/450
  • 1 reply
Forums
Photo

Michigan Motocross Tires by 288yz450


Dirt Bike   Dirt Bike Regional Discussion   North
  • 1 reply
Reviews

Yamaha YZ450F 2017 by Chris.GVS


Yamaha YZ450F 2017
  • - - - - -
  • 0 reviews
Wiki
WR Camshaft Swap Info - last post by jamesm113

WR Camshaft Swap Info


Articles
  • 0 replies
 
x

Join Our Community!

Even if you don't want to post, registered members get access to tools that make finding & following the good stuff easier.

If you enjoyed reading about "" here in the ThumperTalk archive, you'll LOVE our community. Come join ThumperTalk today!

The views and opinions expressed on this page are strictly those of the author, and have not been reviewed or approved by ThumperTalk.