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Problem started last year,slight drop off in power in 7000rpm area.This is while opening throttle fairly fast.Now I have it stop gaining rpm at 6800 to 6900 as I am continuing to open throttle from 1/2 to 3/4 no rpm or speed change then suddenly rpms jump 500 or so and you better be hanging on.Hold it wide open it pulls 8000 all day but if you slowly back off and rpms drop bellow 7500 its like motor off for a second then major power drop off.It feels like power valves are on or off,nothing in between.Liitle history:5000miles,this summer cleaned valves had dealer calibrate them,all new rollers, ramps ,bushings in primary ,new bushings and rollers in secondary,2 grams added to rollers from mile 1. Can the solenoid/valve that provide vacuum to raves go bad,plug up? HELP
 

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Best of Luck in finding the issue.

You put 5000 rounds on in one season,

Making some here jealous.
 

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Dealer should have hooked it up to the computer and tested the raves, TPS etc... Problem should have been obvious unless it is intermittent.
 
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