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GNCCYZ400

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About GNCCYZ400

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    TT Bronze Member

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  • Location
    North Carolina
  1. One of the guys on our race team has a 2002 CRF450R. He is looking to purchase a set of 2004 CRF 250X forks. Being a Blue rider, I have no idea if they will fit. Are the outter tubes the same size? Are the internals the same with diffrent valving? The more info about the diffrences the better. If the trees of the X will fit the R that would be good info also. Thanks for the help, Jeff
  2. GNCCYZ400

    I need fork help.....

    One of the guys on our race team has a 2002 CRF450R. He is looking to purchase a set of 2004 CRF 250X forks. Being a Blue rider, I have no idea if they will fit. Are the outter tubes the same size? Are the internals the same with diffrent valving? The more info about the diffrences the better. If the trees of the X will fit the R that would be good info also. Thanks for the help, Jeff
  3. GNCCYZ400

    Fork info needed....

    One of the guys on our race team has a 2002 CRF450R. He is looking to purchase a set of 2004 CRF 250X forks. Being a Blue rider, I have no idea if they will fit. Are the outter tubes the same size? Are the internals the same with diffrent valving? The more info about the diffrences the better. If the trees of the X will fit the R that would be good info also. Thanks for the help, Jeff
  4. GNCCYZ400

    Chain & Sprocket Setup 05YZ250F Offroad

    Yak...You heard me right 14/48. The gearing is PERFECT for tight woods riding. The few mph on top doesn't hurt either. Running 250A, I tend to go a little faster than I used to. I can ride the taller gear no problem without stalling, usually second gear in the really nasty stuff. Jeff
  5. GNCCYZ400

    Chain & Sprocket Setup 05YZ250F Offroad

    I have been running 14/48 since 01. I have tried several diffrent ratios, the 14/48 works best!!! I run mostly east coast tight stuff. Good luck, Jeff
  6. Does anyone know the difference between the 04 and 05 head? I have 2 F's and I want to rebuild one with the head from the other. thanks for the help, Jeff
  7. If anyone knows anybody that has a '03-05 YZ250F that they are parting out, I need the frame. I was out riding at NC motorsports park yesterday and broke my frame. I was exiting a turn in the woods came out of the corner in 2nd, shifted to third, pinned it and a few seconds later the backend kicked out and went off the trail. I tried to reel it in, but it was too late. I hit a rather large birch tree right on the foot peg (I did manage to get my leg off the bike first). Well the impact tore off the footpeg (clevis and all), left a 3" square hole where the foot peg used to live. It also bent the frame just after the footpeg (where the brake lever mounts). I tried to "bent" it back last night, It wouldn't budge with a 48" pipe wrench. On a good note though, my brake snake did save the brake pedal (it was streched tighter than ...well you know). The bottom line is, I need a frame. At over a grand for a new one, that aint happening. I will be talking to a very good welder this evening, but even if it can be welded, I will not be able to fix the brake mount. So please keep your eyes open for an 03-05 frame. Thanks, Jeff Shearin jms003@aol.com
  8. GNCCYZ400

    To sell or not to sell.....

    Randy...I'm not sure if it will fit, I don't have my 04 yet. I actually have an extra tank (used),seat (new cover, your choice)and radiator shrouds(VERY used). PM your phone# and I will call you. Jeff
  9. I have just bought another 250f (2004). Now my wife says 3 are too many. Should I move into the shop or sell my 01's? If I sell, should I sell all the goodies (about 10g's worth) together, or part out here or on ebay? Some of the goodies will fit the 04, but most will not. Thanks, Jeff
  10. GNCCYZ400

    280 kit and BAD handling

    9.3mm does expose the top ring, not quite the second. After adjusting sag last night I rembered I had to change shocks when I put the big bore in this frame (I hate getting old...I can't rember anything ). So, it would appear that the shock has been the problem all year( although I haven't ridden it yet). I will need a heavier spring, I am just past min spring height at 100mm. O well, I'm just glad I found something wrong . David37....thanks for the info, but I have checked all that. I think it turned out to be something VERY simple (incorrect sag), and I was so frustrated I was "over thinking" the problem.
  11. GNCCYZ400

    280 kit and BAD handling

    ok...just checked my sag and it is way off...almost 5" (4 7/8). I am in the process of adjusting it, but I think my shring is going to be too soft. If so, I have another shock I can try. Forks are set at 9.3mm from the top of the cap to the triple clamp. I can raise or lower according to what the sag adjustment does. I will keep ya'll informed, Jeff
  12. GNCCYZ400

    280 kit and BAD handling

    your are exactly right, that IS what is happening, but only after a short time in the woods. I can normally "think" my bike around "things" (roots, rocks and turns). I know my bike will suck-up the nasties on the tail and I know it WILL turn when I tell it to. I focus on the trail about 30' in front of me and set-up for anything the trail and other riders throw at me, and all is well in the world... Here's what happens NOW....I am on the line with a positive attitude waiting for the flag to drop. 10 seconds...now were off. Hey I finially got a good start (3rd in the woods. 4stk A class). I am staying up front, but the bike is all over the place and wont hold a good line. It is pushing in the corners, and causing me to have to correct comming out of the turn, now I am off line and the leaders are leaving me. This continues untill I'm not racing anymore, I'm just trying to get back to the truck without killing myself. I have lost ALL confidence in the bike. When this happens, you can't race the bike, you are out for a very bad "trail ride". The harder and more aggressive I tend to ride the better the bike reacts (well, used to anyway) You are correct in that I have tried to step it up a notch. I moved to 250A for the last 2 races of the year last year and during thoes races my bike was handling better than ever. I wound up taking 7th and 5th at thoes races. The reason I decided to move up this year was based upon how good the bike felt. Now this was on the wore out motor. It wasn't going to last a few more races, much less another season. Hence the "new" used bike and the big bore kit. Thats where we stand today, riding like a spode, and getting passed by guys I was lapping last year. Needles to say, that is why I am so frustrated. I know what myself and the bike are capable of, I just can't make it happen..... Jeff
  13. GNCCYZ400

    280 kit and BAD handling

    I have yet to install the "bad" motor in the other frame. I had planned to rebuilt it while it was out. I don't see how it could be any of the bearings or "binded" forks (pinched axle), the bike was perfect before the motor swap. Nothing else was changed, only the motor and gearing. With 2 fingers (loose on fingers) at the end of the "slider", the slack measures ~1 3/4" from the hold down bolt to the centerline of the chain. I forgot to mension the bike that had the big bore kit in it, handled very well before I put the kit in. I purchased the bike from a friend of mine and raced it a couple of times before I installed the kit. I even won the first race I ran it in... I couldn't believe how much more power it had than my wore out bike (before the kit). I will attempt (again) to check my sag tonight and measure the fork height. Thanks again guys, Jeff
  14. GNCCYZ400

    280 kit and BAD handling

    The only way I can think of for the power to effect the handling if for the bike to "pull" me farther back on the seat put more weight on the rear of the machine and "lighten up" the front end. But this will only happen when I am against the throttle stop. The bike handles poorly under ALL riding conditions, even coasting. This is why I am so confused.... I have 2 01's. one with a bad motor, and the big bore. The old one (bad motor, but still runs) is ridable and handles perfect. So, my thinking is to swap motors and see if that does anything. I did and now the old bike handles like $hit. All I did is swap the motor and change the gearing (the big bore does not like stk gearing). I have the motor set-up for low-end power. With the stock gearing 1st gear is usless and the motor revs so fast the other gears are VERY short, and I am constantly shifting to keep the motor from blowing up. Late in the races(3+ hr mark)I have run with the stk gearing, I can't rember what gear I'm, and bad things start to happen.... I will check my sag again tonight, and let you know where it is. Chain is at 2 fingers at the end of the guard. Jeff
  15. GNCCYZ400

    280 kit and BAD handling

    How can you run the stock gearing? When I run with the 13 on front I can't keep the front wheel on the ground. The motor trurns up so quick I am always on the rev limiter, even in 5th. The 280 wants more gear and can pull it with no problem. I will try the stk gearing again this weekend, and see if that effects the handling in any way. Thanks for the input, Jeff
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