Juddy's 05 CRF 450 conversion
Balaclava wrote:^^^post up those pics, that could be really useful for me...thanks bro! don't hurt yourself like me right away...My bike feels like a 450 with a 2 strock engine in it for sure and it's very enjoyable...almost too enjoyable...your bike makes my bike horny...
I didnt worry about tapping a thread into the lower mount as it is hard up against the subframe once it bolts up at the rear and the rubber grommet should take up some vibration.Also the hole centre lines up exactly on the wall of the subframe tube so you wouldnt get much of a thread.I spent hours tilting the engine back and forth and trying different ways and trying to use stock parts but that was the best I could come up with.I did weld that semi circle of ally onto the subframe though for the grommet to land on fully.Hope this helps.
juddy wrote:Balaclava wrote:^^^post up those pics, that could be really useful for me...thanks bro! don't hurt yourself like me right away...My bike feels like a 450 with a 2 strock engine in it for sure and it's very enjoyable...almost too enjoyable...your bike makes my bike horny...
I didnt worry about tapping a thread into the lower mount as it is hard up against the subframe once it bolts up at the rear and the rubber grommet should take up some vibration.Also the hole centre lines up exactly on the wall of the subframe tube so you wouldnt get much of a thread.I spent hours tilting the engine back and forth and trying different ways and trying to use stock parts but that was the best I could come up with.I did weld that semi circle of ally onto the subframe though for the grommet to land on fully.Hope this helps.
lovely job, where is your cdi mounted? any pics
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- Posts: 678
- Joined: February 22nd, 2008, 8:18 pm
I don't think that the solid cradle has to be more work.
Once you get a jig set up for bending the cradle, you never have to do it again.
And you can peel the old stuff out of the pockets with a chisel, I haven't actually done that with the bottom part myself but I think with a little practice it wouldn't take that long.
Once you get a jig set up for bending the cradle, you never have to do it again.
And you can peel the old stuff out of the pockets with a chisel, I haven't actually done that with the bottom part myself but I think with a little practice it wouldn't take that long.
03 CRF450/85 500
- dannygraves
- Posts: 8020
- Joined: June 1st, 2007, 2:03 pm
- Location: Las Vegas, NV
That tinypic website seems to be a bit different so got sick of trying to figure it out.The pics I have already posted should be enough really though.I used the 02 cr 250 boot,which is a different part number to the 00 model.Also the gen 1 125,and gen 1 250 are both different part numbers again.Basically my boot ended up with a gap of about 15mm from the 450 airbox on the left,and 22 mm on the right.So I used 20 mm neoprene for a spacer and drilled and tapped 15mm into it from each side.I also used the steel backing on the 250 boot to help pull it up tight and siliconed it as well to the spacer.If you have a look at previous pics you can see how I got rid of the existing studs in the 450 filter cage,and countersunk the holes that bolt into the spacer so the filter would sit flush on that surface.Hope this helps....jws696 wrote:hey juddy, can u throw up a couple more pics of ur air box mod , im doing the same conversion , bought a 2000 250 air boot it misses buy a mile ,
Someone asked how it handled. I have only ridden it twice so far as its been a warm summer here in Perth so cant really comment yet.The suspension has been set up by Terry Hays who is one of OZ's best tuners so Im sure once I get some time on it,it will handle well.
thanx juddy, ye the first pics u put up were pretty much all i needed , was interested on how it looks on air boot side , my gap is 20mm top 15mm bottom.
think i just got a bit panicy in that post just moked it up and it seemd worse than it was !!
was going to do more tonight but it was 43 degrees today so iv lost interest !
think i just got a bit panicy in that post just moked it up and it seemd worse than it was !!
was going to do more tonight but it was 43 degrees today so iv lost interest !
- dannygraves
- Posts: 8020
- Joined: June 1st, 2007, 2:03 pm
- Location: Las Vegas, NV
not at all, the 250 and 125 boot are quite different, the 125 hugs the frame and clears the spring better, but the opening is harder to slide over the carb. my gen-4 has the gen-1 250 boot and marshalls gen-4 that I built for him has the 125 boot and his came out much nicer, but mine still works.Balaclava wrote:ugh isn't it the exact same boot?dannygraves wrote:gen-1 125 boot worked out the best for me on the 2 gen-4s I did.
Last edited by dannygraves on January 27th, 2009, 6:50 am, edited 1 time in total.
'09 kx450f 4-Poke
Gen-4 trail bike --SOLD--
Gen-3 badass trail/mx bike --SOLD--
Gen-1 built dunes bike --SOLD--
'05 klx110 --SOLD--
'95 pw80
Gen-4 trail bike --SOLD--
Gen-3 badass trail/mx bike --SOLD--
Gen-1 built dunes bike --SOLD--
'05 klx110 --SOLD--
'95 pw80
- dannygraves
- Posts: 8020
- Joined: June 1st, 2007, 2:03 pm
- Location: Las Vegas, NV
I nigyvered it cut up and old 927 bottle, cleaned it really well, scuffed both surfaces and melted a couple 10cmx10cm patches overlapping in different directions and got it so hot the plastic fully stretched over the tank surfaceand settled in the wrinkles for the first layer, then again with the 2nd layer. worked great and actually came out cleaner than before I did it since it smoothed out the bottom of the tank. I had a pin sized hole that developed between some wrinkles while I was shaping the tank and fixed it up just fine.juddy wrote:Thanks oggo.Hey Danny you had problems with the tank leaking too didnt you ? I used loctite stuff,a blue and white strip that you bind together.It didnt work.I also tried devcon 2 pack stuff and that is leaking now too.What stuff worked for you ?
'09 kx450f 4-Poke
Gen-4 trail bike --SOLD--
Gen-3 badass trail/mx bike --SOLD--
Gen-1 built dunes bike --SOLD--
'05 klx110 --SOLD--
'95 pw80
Gen-4 trail bike --SOLD--
Gen-3 badass trail/mx bike --SOLD--
Gen-1 built dunes bike --SOLD--
'05 klx110 --SOLD--
'95 pw80