flywheel weights

[KXcam22]

Sometimes an oil filter wrench is the right size.  I use a generic strap wrench. That nut should be normal thread (not left hand).  Cam.

[hughes]

Oil filter wrench is not a bad idea . I was thinking of a c-clamp because that's kind of what the special tool looks like but with a handle.

[kshackle]

After some careful consideration, I replaced the front sprocket, dropping a tooth.  I took her for a trail ride, and the difference was definitely noticeable.  I was able top let her bog down, and with a twist of the throttle, get on it in a hurry. 

I also purchased an 11oz flywheel weight.  I'm having a tough time getting the nut off the crank.  Any suggestions as to removing the nut. 

My 2001 KX 250 is a woods bike, and I also changed my gearing....from 13/49 to 12/54. The change was dramatic and all for the better. I also have the Steahly 13 oz flywheel weight....another excellent purchase...no more stalling and the bike is far more manageable at the low rpm.

I removed my crank nut with an impact wrench. For installing and torquing the flywheel weight...I put my bike in 5th gear, and I crammed on both brakes while sitting on the bike and pulling on the torque wrench.....it was a little ungainly....but it worked.

I have also spent a fair bit of time getting the jetting just right...the bike starts first kick every time and it idles great....and has awesome throttle response too.

I still have the stock pipe with an FMF muffler [turbine-core]....once the pipe gathers a few more dents, I will be buying the FMF Gnarly.


Oh...almost forgot...I just put on a new rear tire.....it's amazing how the traction improves with some new rubber.

Ken

[Polar-Bus]

The reason I'm asking is I do a variety of riding types.  For example back in mid November I went with a group to a local track. (This track had 2 full size MX tracks, one for the little kids, not to mention 400 acreages of trails.)  I had a ball "pretending" to be and MX star...  I then went riding with a friend through the wood.  The week prior to our ride, a hare scramble was at this facility, so all of the markers were still up.  Unfortunately after riding the track for several hours, I was pretty tired, and my friend races GNCC events.  After about an hour, I told him to go do his thing and I'd see him back at the pits...  (He was just tooooo quick through the woods.)

The following weekend I went with a different group (all quads) except for me on a 20-mile ride.  The trails were ruff, very ruff.  Even the detours around the deep stuff were very difficult.  At one point we had to winch a 4-wheel drive out of the mud.  The trails probably have not been used in years.  I think I made it into 2nd gear twice in the trails, and up to 5th once on an open road.  

Because I ride such a variety of terrain, I'm thinking of playing with the gearing.  I?m planning on adding 2 teeth to the rear anyway.  But if I know I'm going to the track/trails, I'd go with standard gearing, and If I know I'm going to be trail busting with quads, swap the front sprocket for one with one less tooth.  I've never added weight to the flywheel, so I was wondering about the effect.

Any and all info greatly appreciated.

I rode my KX500 stock for about a month. For the type of riding I do, which is varied trails, to casual MX'ing. I decided to try a flywheel weight. I added a Steahly 14 oz. weight. I must say what a HUGE improvement on ridibility and traction put to the dirt. My bike now "almost" feels like it has "4 stroke" like behavior. This is SO advantagious in slippery dirt and mud. Gone is the brutal voilent snap right off the bottome end. Contrary to when many people believe, you DON'T loose hp, you actually gain more upper rpm's because the engine is spinning so fast, the added weight prolongs the overrev on top end. I added 2 teeth to my rear sprocket, added the weight, a Moose torque spacer, and I have an FMF Gnarly pipe. My 500 is a fantastic woods bike now. (I wouldn't race a 500 in the woods, but at least now its fun, and manageable in technical trails) Itried the bike on an MX track with the weight also, and to my surprise, my bike was awesome, especially in the corners, the relaxed torque hit down low, allowed me to be so much smoother, and "chug" through the corners, rather than the typicall hard throttle "point-n-shoot" method.

[Mudshark]

Does anyone have a 9oz they want to sell??

[gwcrim]

Does anyone have a 9oz they want to sell??

Someone on Dirtrider.net has one for sale.

[Mudshark]

Thanks!