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You are going to mill the fuck out of those big chunks of billet I hope- .100 -.125 wall max Or they will be too heavy or How many parts to a arm? pivot section?- solid ? Why not mill out some die's and press out the shapes like the factory bikes, and make a kick ass fixture for welding...

fookyoo Added a reply to 1978 rm250C2 restoration

12/21/2016 9:47am
The 77B, 78C, and the C2 have the same engines changes are Exhaust, cdi boxes The 77mid, top end ripper C,C2 mid range, torque engine( pipe , cdi) Run the 77 pipe, huge difference weak spot's - 2nd, 3rd gears- teeth fracture, break off main seals, bearings wear fast, ( crank on right left hand threads) replace all the small...

fookyoo Added a reply to WOLSINK'S '77 USGP RN370 FOR SALE!

12/6/2016 9:45am
Cool bike! Remember watching that race on Wide World of Sports! F the 97 CR250's --- garbage! The local honda dealer has some still in the back room, with 98 cr125's also Ii bet the owner paid a pile of cash for it, and is praying he will brake even Not a good investment!

fookyoo Added a reply to 79 cr250 moto x fox build

11/30/2016 9:39am
As posted on 79 cr swingarm post Make Sure You Check CLEARANCES! on chain roller chain brake arm upper shock mounts on full suspension compress!

fookyoo Added a reply to WTB Aluminum Swingarm 79 Honda CR250

11/30/2016 9:26am
I was reading posts on the 78-80 CR250's a few years ago, Make sure you check chain, lower roller clearance at full swingarm travel on suspension compress brake stay arm problems! A HUGE ISSUE on this BIKE!

fookyoo Added a reply to Suzuki RM125 1977 cases

11/30/2016 7:14am
When was the last time you cleaned your petcock fuel filter? or remove it and use an inline, or nothing It does not take much to plug or slow fuel down on the old Suzuki petcocks As stated above, Suzuki cranks do not have a press fit like Yamaha , when you install your crankshaft into new bearings

fookyoo Added a reply to Suzuki RM125 1977 cases

11/29/2016 11:36am
If the bearing stay's in the case when separating, and it does not take a lot of effort to pull ignition case off of right side (down) it would be crank journal play you are feeling

fookyoo Added a reply to Suzuki RM125 1977 cases

11/28/2016 11:46am
I bet the play is on the crank journal( bearing id on crankshaft) not in case Suzuki , machined the crank journals for a slip fit! If you have a factory suzuki manual, you will notice the crank assembly, removals require only a case splitter, and soft hammer , to install Many of mine , took very little effort to...