Front forks in a bind '04 crf250x
Posted June 13, 2008 - 05:16 AM
Posted June 13, 2008 - 07:43 AM
Pete - you aren't being affected by any of that flooding, are you? Saw that on the news this morning and my thoughts go out to those who are in the middle of that mess.
Posted June 13, 2008 - 07:53 AM
Posted June 13, 2008 - 10:08 AM
1.) Install both forks and set fork height using calipers or a ruler. It is important that fork height be exactly the same for both sides. Tighten pinch bolts to the proper specs (Top: 18 Ft-Lbs | Lower: 15 Ft-Lbs).
2.) Install the axle and tighten the axle nut to proper spec (75 Ft-Lbs). If the axle turns while tightening, tighten one right side axle pinch bolt to hold axle in place.
3.) Tighten both left side axle pinch bolts to spec (17 Ft-Lbs).
4.) With the left side axle pinch bolts and axle nut tightened, loosen the right side axle pinch bolts. Take a small flathead screwdriver and carefully tap it into the slot between the two right side axle pinch bolts. This will enlarge the axle hole. You will then be able to grab the bottom of the right side fork tube and push it in and pull it out freely. The fork will settle naturally into position on the axle without binding.
5.) Remove the screwdriver and tighten the right side axle pinch bolts to spec (17 Ft-Lbs).
If you're wondering if your forks are currently bound up, put your bike on a stand and start this procedure at Step 4.
Plus if the bike has been ridden long with the R/S axle bound up that R/S guide bush will be worn lopsided and more than the other side.
Posted June 13, 2008 - 11:42 AM
Posted June 13, 2008 - 12:04 PM
Posted June 13, 2008 - 06:07 PM
doug are you sure that torque for the axle bolt(75lbft) is correct? i ask as they are a very light alloy and thin across the threads.
Well, it has been quite awhile since I wrote that up on my website and if I remember right I think I looked it up in a CRF and YZF service manual, but I really can't say for sure off the top of my head at this moment.
Wouldn't be the first time I made a mistake....
I'll check it out for sure when I get a chance.