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2007 Yamaha YFZ450
General Specifications
| Year | 2007 |
| Make | Yamaha |
| Model | YFZ450 |
| Disp | 449 cc |
| Bore | Stock mm |
| Stroke | Stock mm |
| Comp | 13:1 |
| Delivery | Carbureted |
Jetting Settings
| Main | 175 |
| Pilot | 42 |
| Needle | 3 clip |
| Screw | 4 turns |
Gallery
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Modifications
| Engine | GTThunder |
| Exhaust | Curtis Sparks | X-6 Big Core |
| Intake | Pro Design Pro Flow | With dual stage foam filter |
| Piston | GYT-R | 13:1 |
| Crank | WR Crank |
| Head | GTT Ported | Oversize CV4 valves, 5 angle valve job |
| Cam | Hot Cams | Stage 2 Adjustable Timing |
| Carburetor | GTThunder | Modded spring, Boyesen Powershot, bored |
| Clutch | YZ450F Setup |
| Gearing | Renthal | 14/38 |
| Chain | D.I.D. X-ring |
| Frame | Gussetted and Powdercoated |
| Subframe | Powdercoated | Ockerman subframe braces, 24v mount |
| Front Arms | ATV Four Play | MGC Standard Travel |
| Tierods | GTThunder Heavy Duty |
| Swingarm | ARS/FX w/ LT linkage |
| Front Suspension | GTThunder Revalves | Stock springs |
| Rear Suspension | Custom Axis LT |
| Linkage | ARS/FX LT |
| Steering Stem | ATV Four Play | +1 anti-vibe, GTT steering flag |
| Handlebars | Fasst Co Flexx | 15* Quad bend |
| Handlebar Clamp | Houser |
| Nerfs | AC Racing | Pro Peg w/ heel guard |
| Bumper | Pro Armor |
| Grab Bar | AC Racing Wide |
| Skidplate | Tag Metals |
| Tires | GBC | XREX/Race Rex |
| Levers | ASV | Pro C5 |
| Rotors | Tusk | Wave rotors |
| Brake Pads | EBC |
| Brake Lines | Streamline | Braided front and rear |
| Stabilizer | GPR |
| Grips | Oury |
| Plastics | Maier | Red |
| Bar Pad | Fasst Co |
| Fuel Tank | IMS | oversized |
| Hand Guards | Powermadd | w/ wraps |
| Frame Guards | Works Connection |
| Numbers | BRM Offroad |
| Number Plates | BRM Offroad |
| Hood | Maier Racing |
| Other | Douglas Wheel | Shamrock front beadlocks |
| Other | Ockerman Rock Guards |
| Other | Pro Armor killswitch |
| Other | Custom Fender Mounts |
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