1981 yamaha srx 440 smokin

still have some more tuning to do but it seems to be running good.it is the original 81 440 engine rebuilt on premix

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1977 Yamaha SRX
1/12/14: Drag sled test and tune.





Yamaha srx 440 mod
Isracing





1980 srx 440 beautiful condition compression and run test
1980 srx 440 beautiful condition compression and run test





SRX 440 vs RX1 Turbo
This is a 1980 SRX with SSR cylinders, 42mm carbs with Aaen trail pipes vs my 2003 RX1 turbo at 12 psi.




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