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Thread: GTX timing

  1. #1

    GTX timing

    Can anyone remind me how to check the timing on the rotary valve?
    I haven't worked on Seadoos for a while and seem to remember that the valve should be vertical at TDC while covering one of the ports.This one is angled somewhat.
    This is a '95 or 96 model and will idle but shuts down when the gas is applied.
    All the diaphragms seem fine. I originally suspected the fuel pump but the carbs are getting gas.


  2. #2
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    Quote Originally Posted by Kraf-T View Post
    Can anyone remind me how to check the timing on the rotary valve?
    I haven't worked on Seadoos for a while and seem to remember that the valve should be vertical at TDC while covering one of the ports.This one is angled somewhat.
    This is a '95 or 96 model and will idle but shuts down when the gas is applied.
    All the diaphragms seem fine. I originally suspected the fuel pump but the carbs are getting gas.
    What you described above is wrong you need a tdc guage & a degree wheel to to it right.

    From what you described your carbs need to cleaned/rebuilt & all fuel lines need to be changed due to deterioration of the inside of the fuel lines causing blockage in the small filters in the carbs & the fuel on/off/reserve valve.

    ALL doo doos from 1994 thru 2002 need to have the grey (Tempo) fuel lines replaced & carbs cleaned/rebuilt or you will do engine damage.

  3. #3

    GTx Timing

    Thanks
    I tested the compression and the Rear pot is 0. I also noticed the oil pump cable had come loose off the throttle linkage , so I guess we have an internal meltdown.

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