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engagement should be around 3400-3800 rpm, with full shift at 6800-7200. that would be your target rpm range for max hp and torque.
 

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7250RPM = 66.7HP and 48.3 torque on the SRV. The peak number for both take place at the RPM.
 

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I have built two motors for the srv with a comit 102 or a 108 which we have you can be turning them at 8500-9000. You can put dual carbs on them if you find the set ups wich are hard to find also run aaen pipes on I have DG. The srv's go darn good nothing like the srx's but still a great trail sled.

mbrown said:
At what RPM is maximum power and maximum torque for the 1989 Yamaha SRV540?

Mike
 
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