31
Photos & Videos / Boobie''''''''''''''''''''''''''''''''s, Bike''''''''''''''''''''''''''''''''s & more Boobie''''''''''''''''''''''''''''''''s
« on: July 13, 2013, 01:24:22 PM »
Cool
News:
Like the Phoenix rising from the ashes Two Stroke Motocross is reborn!
Show Posts
This section allows you to view all posts made by this member. Note that you can only see posts made in areas you currently have access to.
32
Open Forum / race here sunday! 7/14/13
« on: July 12, 2013, 04:36:05 AM »
I grew up at frozen, since I joined the army and moved I haven't been there since '04
33
Riding Spots / Has anyone been to KTM world in Georgia?
« on: July 09, 2013, 07:46:41 PM »
Highland Park has the MXGP track that I cant wait to ride. Let me know when you're all going.
35
General Two Stroke Talk / yz 325
« on: June 27, 2013, 12:56:44 PM »Insert waston and Gorr cylinder failure.
Got a link to that?
36
General Two Stroke Talk / yz 325
« on: June 26, 2013, 02:36:38 AM »
Advanced Sleeve makes aluminum sleeves for CR500s. I'm sure they could whip up one for this.
37
General Two Stroke Talk / yz 325
« on: June 26, 2013, 01:32:08 AM »http://www.eddie-sanders-racing.com/product_p/yz250%20325%20kit%20big%20bore.htm
any thoughts on this?
I'm glad to see somebody's offering this, but I don't know if its for me. I'd love to see a review.
38
General Two Stroke Talk / The REAL inside the Outdoors
« on: June 25, 2013, 03:25:32 PM »
I want to see something on the everyday wrenching, data gathering, tuning, modifying, and dialing in of your bikes for your myriad of riders.
39
General Two Stroke Talk / CRF Redemption: The 500 Project Part 2
« on: June 16, 2013, 02:28:41 PM »Top stuff love ya work
Just out of curiosity, why do all the other conversions either replace the bottom rail or, like Service, most of it?
Thanks guys, I was pretty nervous cutting into a frame but it turned out easy.
I believe most replace the cradle because it looks (and maybe behaves) the most like a stock setup. Mine is the most professional looking for the cost, as I'm not a metal fabricator, just a guy who knows a good welder.
I'm buying some dremel bits and an angle grinder wheel tomorrow.
40
General Two Stroke Talk / CRF Redemption: The 500 Project Part 2
« on: June 15, 2013, 12:10:11 PM »So the strategy for the clutch case is to divit/hack on the frame for clearance? If so are you reinforcing the notch locations somehow to make up for the lost strength or to spread the load past the notches?Yeah thats what i was thinking. Do all the conversions require grinding for clearance?
X3.
Those lower rails will not be more then 2.5-3mm thick. Any grinding there will weaken it badly.
Would it be easier to just lower the rail instead.
I am sure you know more on these conversions then me, just curious.
Rest of the build is looking good.
Thanks guys. I understand your concern, but I wont be touching the actual cradle rail as it is paper thin. The cover actually rests on the beefier weld that connects that rail. This is a very common modification/concession when making these, and as long as its done right will not be a problem.
41
General Two Stroke Talk / CRF Redemption: The 500 Project Part 2
« on: June 15, 2013, 02:19:24 AM »Talk about a clean and well done conversion! Make sure you have confidence in that welder, you don't want to find out that his welds are crap when you're 40 feet in the air.
He does Joe Gibbs Racing's Radiators and roughly half of the factory teams bike stands. I'm not too worried man.
42
General Two Stroke Talk / CRF Redemption: The 500 Project Part 2
« on: June 15, 2013, 01:20:52 AM »
The 500 conversion reached its decisive point today, as I cut the lower engine mounts and Y-piece out of the cradle. I used a Rigid Fuego Reciprocating Saw with a Bi-Metal blade, and will be going over the rough cuts with an aluminum sanding bit a la Dremel.
I am using the Conversion Parts 500 kit (available via eBay). There are several PDF instruction manuals published by this guy, and it has removed virtually all headaches and hassles normally involved with this sort of undertaking. Check them out here: http://www.conversionparts500.com
As for welding, I am NOT the man for that task, so I have enlisted Brett Koufas of ICW Bikestands and Radiator Repairs/Mods to weld my fully jigged CR when the time comes (hopefully a couple weeks). ICW stands for "I Can Weld", so I think he'll do alright. He'll also be doing some big end tanks and new spigots on the already well-sized CRF radiators.
As the bike sat this morning:
First cut:
Both lower mounts off, I cut halfway in from both sides as it is on a slight bend in the cradle:
Now that the chunks are off, I'll go back through with a dremel and make them smooth. I took care to leave a large rectangular pad of material on the frame so there would be a little more meat to weld to than the very thin cradle tubing.
Next came extraction of the Y from the frame (only took one pic):
I'll be replacing the Y with this, a billet piece shot with walnuts to look cast:
In what I consider a backwards technique, I've started a project chassis first rather than engine first. It makes sense here, as while the engine is together I might as well mock up the frame. In order to line the sprocket up correctly, you need to use a set of swingarm collars from a 02-07 CR125. The shorter one is the left side, and the longer one is the right. This lined up the engine perfectly sprocket to sprocket.
The engine in frame, with swingarm pivot bolt through:
The collars:
On the right side of the cradle, the inner clutch cover touches the frame, and needs about 2-3mm of clearance via an aluminum grinding bit on the dremel.
This will allow the engine to rotate into the supplied headstay:
The other bit of clearance-ing needed is almost 4mm off of the rear of the cases, much like how dogger315 has done, to clear the shock spring.
Here's the tool that did it, the old Y, the new Y, and my jig I bought from a vendor on www.bannedcr500riders.com:
...and here's where I left off for the day.
So far I'd like to thank the exceptional dogger315 for providing careful advice on the CR250 clutch conversion via PM, as well as reputable shops and mods on part 1 of this build.
Once I get the mounts all fabbed up, the frame will come completely apart and will be blasted, and the only parts that will be polished are the upper extruded spars that run alongside the tank. The swingarm will be brushed. I will also start the engine tear-down as soon as the frame will permit, as I've been stocking up parts to do it.
Right now I'm using a 2000 CR250 complete ignition; research has proven it to work quite well. The digital ignition is a plus, but I'm not too sure if the light flywheel will be.
Stay tuned!
I am using the Conversion Parts 500 kit (available via eBay). There are several PDF instruction manuals published by this guy, and it has removed virtually all headaches and hassles normally involved with this sort of undertaking. Check them out here: http://www.conversionparts500.com
As for welding, I am NOT the man for that task, so I have enlisted Brett Koufas of ICW Bikestands and Radiator Repairs/Mods to weld my fully jigged CR when the time comes (hopefully a couple weeks). ICW stands for "I Can Weld", so I think he'll do alright. He'll also be doing some big end tanks and new spigots on the already well-sized CRF radiators.
As the bike sat this morning:
First cut:
Both lower mounts off, I cut halfway in from both sides as it is on a slight bend in the cradle:
Now that the chunks are off, I'll go back through with a dremel and make them smooth. I took care to leave a large rectangular pad of material on the frame so there would be a little more meat to weld to than the very thin cradle tubing.
Next came extraction of the Y from the frame (only took one pic):
I'll be replacing the Y with this, a billet piece shot with walnuts to look cast:
In what I consider a backwards technique, I've started a project chassis first rather than engine first. It makes sense here, as while the engine is together I might as well mock up the frame. In order to line the sprocket up correctly, you need to use a set of swingarm collars from a 02-07 CR125. The shorter one is the left side, and the longer one is the right. This lined up the engine perfectly sprocket to sprocket.
The engine in frame, with swingarm pivot bolt through:
The collars:
On the right side of the cradle, the inner clutch cover touches the frame, and needs about 2-3mm of clearance via an aluminum grinding bit on the dremel.
This will allow the engine to rotate into the supplied headstay:
The other bit of clearance-ing needed is almost 4mm off of the rear of the cases, much like how dogger315 has done, to clear the shock spring.
Here's the tool that did it, the old Y, the new Y, and my jig I bought from a vendor on www.bannedcr500riders.com:
...and here's where I left off for the day.
So far I'd like to thank the exceptional dogger315 for providing careful advice on the CR250 clutch conversion via PM, as well as reputable shops and mods on part 1 of this build.
Once I get the mounts all fabbed up, the frame will come completely apart and will be blasted, and the only parts that will be polished are the upper extruded spars that run alongside the tank. The swingarm will be brushed. I will also start the engine tear-down as soon as the frame will permit, as I've been stocking up parts to do it.
Right now I'm using a 2000 CR250 complete ignition; research has proven it to work quite well. The digital ignition is a plus, but I'm not too sure if the light flywheel will be.
Stay tuned!
43
Riding Spots / Durhamtown in GA
« on: June 14, 2013, 01:07:31 PM »
http://motocrossactionmag.com/Main/News/WANNA-TEST-RIDE-A-2014-KTM-125SX-150SX-250SX-250SX-10179.aspx
In addition, there's some info on ktmusa.com. Looking forward to buzzing around the gp track. Hopefully they water it.
In addition, there's some info on ktmusa.com. Looking forward to buzzing around the gp track. Hopefully they water it.
44
Riding Spots / Durhamtown in GA
« on: June 14, 2013, 02:32:05 AM »
Awesome, I`m trying to make it out to Gatorback on Nov. 26 for the KTM ride day out there too.
45
Riding Spots / Durhamtown in GA
« on: June 09, 2013, 08:39:13 PM »Early invite everyone. Heading back first half of thanksgiving week. Anyone who beats me on the GP track gets drinks on me that night. Don't care if I have to serve up the drinks or not, just want to scream our 125's with some other 2 strokes. One caveat. If you beat me on the GP track the next test is how fast to go DOWN the hill climbs and be able to stop before the trees greet you.
I'm in!!!