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Thread: 2000 gpr 1200

  1. #1

    2000 gpr 1200

    Having issues with my 2000 Yamaha 1200GPR bogging. Synthetic oil seemed to help but it still won't kick a** consistantly. I thought I might have a bad catalytic converter so I looked into that. I found a chip where the exhaust sensor should plug in so I figured someone had put in a D-plate already. I couldn't tell by looking at the outside of exhaust so dealer tells me to remove sensor and stick a bent hanger in to see if it dead ends at the Cat. I can run the hanger at least 1.5 feet forward in vehicle without hitting anything. Is it possible the previous owner(s) did not install a D-plate, but that the cat busted itself up and exited the exhaust? Is there a way to tell without removing complete exhaust? Also, the plugs I pulled seem kind of oily. Are there adjustments that need to be made for the oil injection?

  2. #2

    Join Date
    Mar 2008
    Dallas, TX
    Sounds like your carbs need to be rebuilt. In order to do that you need to remove the stinger and you can look inside for the D-plate.

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