Bansheeman1121 Posted March 9, 2005 Report Share Posted March 9, 2005 I no these questions come up way to much but im thinkin about puttin some money on a race with a bone stock 4 stroke yfz 400 yamaha dirtbike anyone no how fast these bad boys are Quote Link to comment Share on other sites More sharing options...
1800bigk Posted March 9, 2005 Report Share Posted March 9, 2005 (edited) I no these questions come up way to much but im thinkin about puttin some money on a race with a bone stock 4 stroke yfz 400 yamaha dirtbike anyone no how fast these bad boys are 335910[/snapback] dirt bikes are hard to beat, but if you have a lot of power you can win. race him on pavement. dirt bikes are very hard to beat on dirt or a field. do you have a full drag port? Edited March 9, 2005 by 1800bigk Quote Link to comment Share on other sites More sharing options...
Bansheeman1121 Posted March 9, 2005 Author Report Share Posted March 9, 2005 Naa i belive its a mild port when i bought it the guy just told me it had some port work, so when i took my cylinders to get bored out the guy said it looks like someone just slightly gave it a bit of port work so i guess a very mild port job Quote Link to comment Share on other sites More sharing options...
rocketboy Posted March 10, 2005 Report Share Posted March 10, 2005 from your sig i would say probably not, though it should be fairly close.unless youve got some topend dune porting and taller gearing its pretty common for a 250cc/yf450 newer bikes to win against a setup like yours .now a highreving port with right compression and intake oughta smack these bikes down if riders are equal . the 400 and 426 were pretty close in power and 450's were a hair faster torquier then theywere so.you might get a yf400 if you hook up perfect and dont miss a shift ,your porting is just too vague to say for sure,porting is where the power is at! Quote Link to comment Share on other sites More sharing options...
trail rider Posted March 12, 2005 Report Share Posted March 12, 2005 what ever you do, don't put money on that race, cause more 'n likely you will lose. Have you ever even rode one of those big bore 4 stroke race bikes? I rode a 426 w/ a white bros pipe and some other stuff for the first time ever yesterday and all I can say is, gobbs of torque, gobbs of power, and it fuckin hooks up all the time . When I would hammar down on it, the front end would raise in every gear, and I was sittin on the gas tank too! The only thing that sucks is if you stall it, then it is you have to do 5 different things to get it started and you'll wish you had a 2 stroke If your one of the type of guys here who think 4 strokes are for pussys and wussies, go ride a 450 and you will change your mind It scared me more riding this then it did the first time I rode my banshee. And there is know way my banshee would beat one of these in a drag, cause i am geared to low and all I do is spin on take off while that 426 is bye' bye Quote Link to comment Share on other sites More sharing options...
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