Posts
793
Joined
1/11/2015
Location
SE
Edited Date/Time
4/7/2020 3:17pm
Tought ill start a build thread here instead.
Picked up a 2001 cr 125 for cheap to work on.
Plan is to make it looking mint, and a complete teardown.
Engine recipe:
Srs head (already got)
38mm Pwk air striker carb
Boysen rad valve
07 air boot (ordered)
Fmf factory fatty or scalvini pipe
Shorty silencer
Abusive clutch
Might send cylinder and cases to gorr to port/polish/match and adjust powervalve etc also, we shall see..
Chassi recipe:
Gold excel rims
47mm showa front fork, also looking around for a used A-kit.
New style front fender and stadiumplate
996 twinwalls
Hpsd damper
And the usual, anodising stuff,new bearings etc etc.
Pictures from the seller, gonna try to start the teardown tomorrow, still on crutches so it will take some time.
Have some ideas..
Is it any idea to use a regular tumbling machine and tumble the gearbox for smoother shifting?
Have seen some people move the electronics, where do they move it?
Other than that, if you have some nice mods and tips, hit me up!
First up will be to tear down and blast frame and Swingarm, and then use scotchbrite to give it factory look. Then make it a roller, and enginebuild last.
Picked up a 2001 cr 125 for cheap to work on.
Plan is to make it looking mint, and a complete teardown.
Engine recipe:
Srs head (already got)
38mm Pwk air striker carb
Boysen rad valve
07 air boot (ordered)
Fmf factory fatty or scalvini pipe
Shorty silencer
Abusive clutch
Might send cylinder and cases to gorr to port/polish/match and adjust powervalve etc also, we shall see..
Chassi recipe:
Gold excel rims
47mm showa front fork, also looking around for a used A-kit.
New style front fender and stadiumplate
996 twinwalls
Hpsd damper
And the usual, anodising stuff,new bearings etc etc.
Pictures from the seller, gonna try to start the teardown tomorrow, still on crutches so it will take some time.
Have some ideas..
Is it any idea to use a regular tumbling machine and tumble the gearbox for smoother shifting?
Have seen some people move the electronics, where do they move it?
Other than that, if you have some nice mods and tips, hit me up!
First up will be to tear down and blast frame and Swingarm, and then use scotchbrite to give it factory look. Then make it a roller, and enginebuild last.
Yeah, he drown the bike, let it sit for too long, didn't change oil and went out ride again, results were broken crank-bearings.
A little elbow grease and blasting will do the trick
Will use these if I don't find a good priced kit suspension.
Hopefully my gf dont go bananas tonight, since I live in her apartment while I'm on crutches.. have not told her about these
The finishers are massive tumblers that use ceramic beads really helpful people
Vapour blast your cases for a great finish
www.novaracing.co.uk
The Shop
Tried on the new front fork.it fits in the clamps and have the same length.
But the caliper doesn't fit, and the wheel axle and spacers are wrong. Axle got the same dimensions, just 10mm too long. Spacer are 7mm too thick.
I'll just order a new axle for a 2004 crf, and I'll order a spacer for that bike also, if that doesn't fit I will machine down the one I have to correct dimensions.
Sorry about the mess, hard to clean when you are 1 legged
Aaaand, I will need a new right case (or both if I can't change 1 of them, are they "milled" together so they just fit each other?
Cylinder and gearbox looks good tough
Srs head also
Hopefully it will be an upgrade also
Funny tough that these 2 bolts were the only ones that was stuck! Everything else loosend up just fine
Got my new Gpi rads also, for the price I'm willing to try them, they look good for sure.
Also tried to mount up an crf 450 2014 rear master cylinder with integrated reservoir, but it rubs against the frame, might work if you grind of a small amount of material from the cylinder, will look into this more when I bolt it together, the c-c measurement is correct anyway.
Parts waiting for blasting, then some hours with scotchbrite! Yes, that's my garage-dog (came with the gf
But the frame and swingarm got some small imperfections, so I'm currently thinking about powdercoat it black.
Also, when I rebuild the gearbox, I have been thinking about removing the 1st gear, since it won't be used..
Toughs?
Gonna take a closer look at the airbox to see if it's good, otherwise I will order a new airbox also, they were pretty cheap here.
New plates, screws, gasket, clamps etc.
Does anyone now if the -02 and up airbox fits the -01 frame? Mine is not in the best shape and I have only found the -02 and up to buy..
Blasted frame, gonna get some powdercoat soon, just need to weld the subframe and remove the footpeg-mounts.
Airbox, anyone have a good idea to get it shiny? Or if the 02-07 fits.. might worth a shot to buy and try.
Can't really understand this tough, my airboot was mounted on the inside of the box, is this correct? What parts should go where? Airboot against inside of the box and the gasket between boot and the metal piece you mount the airfilter to?
Also, are racetech titanium and mettec the same quality? Might go the titanium route with this build.. always dreamt of building a balls out bike
Also, when I'm dealing with aluminum welding, should I reconsider and move the ignition coil to the rear?
Started to Polish the cases, this one is approx 45min in to it.. more to come.
Took the head of also, found something in the cylinder, but you can't feel it with the nail. Will leave it to some enginebuilder including the porting work.
As for the rear master cylinder I would carefully notch the farm a small amount just enough to clear the seal housing on the master cylinder as the frame has more meat than the MC. You wouldn't need to take out much at all, it wont affect the structure of the frame.
I may use my 2015 crf 250 Dlc coated/rg3 SFF fork also, depending on if I buy an öhlins/a kit/cone valve for that bike or not.
Removed the old rims as the hubs are getting painted gloss black, front rim CRACKED when we cut off the spokes, looked like an egg, serious amount of tension in that one..
Getting gold excels I think.
Frame/swingarm will be half-matte black.
Borrowed a friends 2014 crf 450 triple clamp, and the steering stem fits between them, so I might try to get an newer style triple clamp and just use my stem, so I get the steering damper and new style plate mounts automatically. Just need to check my offsets on forks and clamps so I don't fuck shit up
Just a small test batch from partzilla.com, but anyway
New hardware for the radiators, just need the Ti-bolts.. need to make an Ti-order soon..
Mounted on gpi-rads, feel a little bad to use these, don't got an scale but they actually feel lighter than stock, need to buy a small scale! If they are crap, I'll buy oem ones if still possible.
Got the newer style footpeg-mounts from a member here!
Started to clean up the dog-bone, 240 grit sandpaper and then scotchbrite. not done yet, but some progress pics.
That's all
Looks good. Dog bone is looking great!
Pit Row
Other frame is a friends I help out, -14 crf 450
Putting his motor in tomorrow
They didn't blast the inside of the hub, so I'll have to clean them somehow..
Excuse the mess..
Now i Need some bearings, and a titanium bolt order and start piecing parts together
I'm curious, what led you to the decision to powder coat your aluminum frame? Powder coating it prob added between 1 to 2 lbs to the bike, and then your going to put a ti bolt order through? Sucks because weight you save from ti will be negated by the powder coat. Anodizing would have kept weight to a minimum. Great build thought
Yeah I was waiting for that question actually
The frame got some marks and dents, and wouldn't look good with ano or stock aluminum, so I went with powdercoat for now, if I find a real nice almost new frame later, I'll just switch.
And I'm probably going the Sff-air fork route and the 47 mm showas as backup, so I'll automatically lose some good weight there
And most of the bolts are bad anyway, and oem steel bolts ain't that cheap either, cheaper of course.. but when I do it, just go balls out
I'm also going to try have custom guts/think seat foam, carbon tank and so on, so the powdercoat adds of course, but for now, I'll live with it
Hope the answer is good enough
Rear shock I haven't decided what do do yet, going to let my suspension guy work some magic on what bolts up in the rear.. the crf 450 14 have the same lenght and clevis, so that options for more aftermarket stuff, like Öhlins and kit shocks, if you get the valving right.
but an ti spring is an option
Actually gonna mock up the subframe with airbox and look at clearance with the 14 450 shock this weekend. And se if it's the same up top
Mounted up the tank-rubberguard at least, glued to the frame
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