HrcRacing's Gen 4 ('05 CRF250R) Build
Posted: January 23rd, 2010, 8:00 pm
First of all, thank you to Bob and others for posting their builds. Thank you to Adam (Roostius Maximus) for hooking me up with some 1" stock and for all of his advice. Danny has been very helpful too - thanks bro!
I'm only really starting this build but wanted to give credit where credit is due.
I'm starting with just a eBay frame that I got for $215.00 shipped. Came with a BOS but I was able to get it titled for an additional $65.00. Have a member here possibly hooking me up with a roller so I'm crossing my fingers that that works out.
Here the Y is removed. As you can see in the pics, I followed the angle of the bottom of the Y.
Mounts removed. I won't bother cleaning these anymore than this.
Drilled out the plug welds with a 1/2" bit and cleaned the Y up.
Removed the engine guard mount from the left side and cleaned up the frame rail. I'll reuse the mount later for the pipe mount.
I placed the Y underneath and estimated how much I would need to cut the downtube to be around where others have placed their Y and scribed the downtube. I left my Y full thickness and only relieved the downtube.
The Y basically where I want it with some relief around it for welding. The sides are thin so, thankfully, required very little work. The back is a bit thicker but roughly half as thick as the front. With that in mind, more work was done on the front.
In the pic above, the Y looks a bit low since I followed the original shape of the Y when I cleaned it out. If you look at the pics below, you get a better idea of how high it is. I'm going to notch the frame by the right footpeg so I "think" that this should be good.
Well, that's it for now. Like Bob, I'll use some 1" stock from Home Depot for mocking up the extensions so I plan to get that tomorrow. My 3/4" stock is a bit proud of that so I'll need to trim that down some before it's ready.
I'm only really starting this build but wanted to give credit where credit is due.
I'm starting with just a eBay frame that I got for $215.00 shipped. Came with a BOS but I was able to get it titled for an additional $65.00. Have a member here possibly hooking me up with a roller so I'm crossing my fingers that that works out.
Here the Y is removed. As you can see in the pics, I followed the angle of the bottom of the Y.
Mounts removed. I won't bother cleaning these anymore than this.
Drilled out the plug welds with a 1/2" bit and cleaned the Y up.
Removed the engine guard mount from the left side and cleaned up the frame rail. I'll reuse the mount later for the pipe mount.
I placed the Y underneath and estimated how much I would need to cut the downtube to be around where others have placed their Y and scribed the downtube. I left my Y full thickness and only relieved the downtube.
The Y basically where I want it with some relief around it for welding. The sides are thin so, thankfully, required very little work. The back is a bit thicker but roughly half as thick as the front. With that in mind, more work was done on the front.
In the pic above, the Y looks a bit low since I followed the original shape of the Y when I cleaned it out. If you look at the pics below, you get a better idea of how high it is. I'm going to notch the frame by the right footpeg so I "think" that this should be good.
Well, that's it for now. Like Bob, I'll use some 1" stock from Home Depot for mocking up the extensions so I plan to get that tomorrow. My 3/4" stock is a bit proud of that so I'll need to trim that down some before it's ready.