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1985 Harris Performance (UK) Hand-Built 250cc Rotax GP Race Motorcycle - $5,200

Started by Guygrrr, July 09, 2024, 02:32:35 PM

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m in sc

finally got the prototype stuff printed and test fit.



SoCal250

75 Yamaha RD125B   75 Yamaha RD125B (project)
75 Yamaha RD250B   75 Yamaha RD200B (project)
73 Yamaha RD350     77 Yamaha RD400D   79 Yamaha RD400F  
91 Yamaha TZR250R  89 Yamaha FZR400   05 Yamaha FZ6   
05 Yamaha XT225TC  82 Honda MB5  02 Aprilia RS250 Cup (sold)

m in sc

finally got some of the parts made,going to hopefully move along faster now.   :burnout:

Dvsrd


m in sc

nothing extreme but this is a big step. got the shim depth sorted for engagement. need to machine the main housing down take about 38mm down. once thats done, need to key and tig weld the toothed gear on the shaft. lastly mount up the hydraulic clutch actuator. getting over a cold but this def made my day today.



m in sc

bit of an update. big turning point, got it all machined and mounted. upside: it all works! downside.. I need to add a compression release. even w a 400cca battery the compression is just too much. but I have a plan. regardless,  got the battery box etc all fabbed up. still zero permanent mods to the bike itself. all bolt on.

RDnuTZ

1987 TZR250R Restricted Japan Domestic market bike (Project)
1977 RD400 (Project)
1974 RD350 (2) (Projects)
1973 RD250 (Project)
2022 Beta 300 X-Trainer, Yamaha Vintage MX, YZ (18)