Confused over year

[David boad]

Ok ive seen a few of these on here but none have help ok my vin says its an 06 its got the high brake reservoir for rear and blue a arms, I bought this bike brand new im confused because my research has told me the front and rear grab bars should be ally but they steel, the rear brake is supposed to be twin piston and mines single what I really wanna know is where do I find the cc markings on the engine any help would be awesome

[nickmell]

What kind of screws are holding the oil filter cover on? hex or allen heads?

[Spoolin250]

umm hex and allen are the same thing Nick.

[dylan450yfz]

^^way to be a dickhead.

hex.. http://www.palmerbolt.com/product_im...de_5_zinc1.jpg

allen.. http://screwdrivertypes.com/wp-conte...Head-Screw.jpg

[blown54]

Does your swingarm have 4 allen bolts or no bolts on the carrier for adjustment?

[yamirider453]

Originally Posted by dylan450yfz

^^way to be a dickhead.

hex.. http://www.palmerbolt.com/product_im...de_5_zinc1.jpg

allen.. http://screwdrivertypes.com/wp-conte...Head-Screw.jpg

You beat me to it

[nickmell]

Originally Posted by dylan450yfz

^^way to be a dickhead.

hex.. http://www.palmerbolt.com/product_im...de_5_zinc1.jpg

allen.. http://screwdrivertypes.com/wp-conte...Head-Screw.jpg

Thank you

[Terse]

Originally Posted by David boad

Ok ive seen a few of these on here but none have help ok my vin says its an 06 its got the high brake reservoir for rear and blue a arms, I bought this bike brand new im confused because my research has told me the front and rear grab bars should be ally but they steel, the rear brake is supposed to be twin piston and mines single what I really wanna know is where do I find the cc markings on the engine any help would be awesome

You have a 06 frame.

You are supposed to have aluminum bumpers, and two pinch bolts holding tension for the axle carrier.

The 06 also has a resistor on the right hand front down frame tube, where the 04-05's do not.

[David boad]

The swing arm has 4 allen keys across the back and the oil filter is held on by 3 hex head bolts ill check for tje resistor tonight thanks all for the help

[kb motorsports]

Originally Posted by David boad

The swing arm has 4 allen keys across the back and the oil filter is held on by 3 hex head bolts ill check for tje resistor tonight thanks all for the help

You have a 2006 or newer YFZ!

[Terse]

Well the swing arm is 06+.

Can you post pictures?

[dylan450yfz]

Model Year Changes

2004

• First model-year, introduced all-new

2005

• Banana pipe introduced
• Hot start level plug changed from rubber to aluminum

2006

• New crankshaft with increased stroke to 63.4mm (up from 62.0 mm. This made it a true 449 cc. Previously a 439 cc engine
• Larger capacity radiator
• Titanium heat-shield
• Longer steering stem, revised handlebars, and thicker padding in seat
• Aluminium rear grab-bar replaces steel design
• Aluminium front bumper to replace steel design
• Replaced the twin-row bearing carrier swingarm with a round-housing swingarm which made adjusting the chain easier
• Twin-piston rear brake calliper
• LED taillight
• Revised head design (very slight difference, parts interchangeable among years 2004-2008 )
• Revised carburetion, and ignition timing
• New tire design
• Longer travel rear shock
• New front suspension settings

2007

• ProTaper aluminium handlebars
• Revised front brake master cylinder and lever
• Drilled rear brake disc
• Internal oil jet to lubricate piston bottom
• Improved clutch
• better shocks with high and low speed adjustment.

2009

• 2009 YFZ 450R for MX
• Fuel injection
• Better suspension 80% bigger reservoirs longer travel
• Aluminium steel hybrid frame
• 405 lbs wet weight

2010

• 2010 YFZ 450X for XC
• less suspension travel
• 400 lbs wet weight
• dropped the YFZ 450

[David boad]

Thanks all I sent the vin off to yamaha it is bike number 5 for 2006 I sent them pics of the hot start and the caliper and front and rear grab bars I got a very apologetic phone call and overnight shipment of replacement parts plus extras to say sorry something to do with a factory screw up

[kmc_a55]

Originally Posted by David boad

Thanks all I sent the vin off to yamaha it is bike number 5 for 2006 I sent them pics of the hot start and the caliper and front and rear grab bars I got a very apologetic phone call and overnight shipment of replacement parts plus extras to say sorry something to do with a factory screw up

No way! That is awesome. Very glad to hear you got taken care of in a very good and professional way.

[Terse]

Originally Posted by David boad

Thanks all I sent the vin off to yamaha it is bike number 5 for 2006 I sent them pics of the hot start and the caliper and front and rear grab bars I got a very apologetic phone call and overnight shipment of replacement parts plus extras to say sorry something to do with a factory screw up

Wow that's awesome. My 06 is 499 for 06

[blown54]

Originally Posted by Terse

Wow that's awesome. My 06 is 499 for 06

How do you find that out?

[David boad]

Im guessing u must have stroked it im stoked my bikes like new they even included a steering damper and a heap of gytr stuff