this is my first yamaha and first time ever rideing a raptor. I like big power and lots of torque and this one has it also i real like the EFI or so yamaha calls it YFI. now i know the yfz is a quicker machine ( i just dont like it) but what about top end, at all out top speed which one is faster?

 

Congrats on your new machine! Those YFZs are quick machines, no doubt but these two are fairly close in a drag. I do think the 700 has a higher top speed....enjoy!

 

im not talking about drag races. yes the yfz will win. im saying all out top speed... over time. take for exp.. you don't see many 450s raceing the baja 1000. but lots of biger bores, like the xr650s, ds650s, kfx700, even brp800s. you see what im saying..........like over a long distance / period of time. im shure that 686cc displacment can out haul that 449cc.

 

i think why theres the big bores running the baja is because they have more bottom end to turn taller gears, and because they can turn taller gears they run at lower RPMS which increases fuel millage and reliability. i sure as hell woudlent want to rely on any form of YFZ for 1000 miles straight.

to get a sence, the Trophy trucks run through about 1000 gallons of Race Gas in the Baja 1000

 

This may answer your question:

2005 Baja 1000 results
PRO ATVs
CLASS 25 (over 251cc)—
1. Wayne Matlock, El Cajon, Calif./Chad Prull, Honda TRX450R, 18:06:53 (39.13mph);
2. Wes Miller, Fallbrook, Calif./Dan Creech, Honda TRX450, 18:52:37;
3. Mike Cafro, Carlsbad, Calif./Danny Prather, Ramona, Calif./William Yokley, Honda TRX450R, 19:24:36;
4. Joel Leal/Israel Reyes/Indalecio Jimenez, Mexicali, Mexico, Bombardier Baja 650, 20:22:41; 5. Francisco Ruano/Gerardo Sepulveda/Rafael Pinedo, Tijuana, Mexico, Honda TRX 450R, 21:32:18;
6. Nick Nelson, Rosarito, Mexico/Nick DeStout, Oceanside, Calif./Jason Greenhaw, Bakersfield, Calif., Honda TRX450R, 21:38:23;
7. Josh Frederick, Moapa, Nev./Cyle Chislock, Murrieta, Calif./Levi Marana, Hemet, Calif., Honda TRX450R, 24:33:18;
8. Joselito Muro, National City, Calif./Carlos Juarez, Tijuana, Mexico/Luis Hernandez, Chula Vista, Calif., Honda TRX450R, 24:37:13;
9. Ricardo Lopez/Hemet, Calif./Rene de la Rocha, Tijuana, Honda TRX450R, 26:15:13. (16 Starters, 9 Finishers)
CLASS 24 (under 251cc)—1. Glen Walraven, Dallas, Ga./Hans Luenger, Cleveland/Richie Brown, Dahlonega, Calif., Honda TRX250R, 27:03:10 (26.20mph). (1 Starter, 1 Finisher)