Question about Yamaha Water Sport
2000 yamaha xl 700 will not run above 3000-4000 rpms in water but will hit the rev limter out of water
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Posted on Jan 02, 2017
Idle air control valves short out all the time on these models. You can ohm the motor to check it, but the down side to a shorted iac valve is that it shorts out the ecm if not repaired quickly. when the valve shorts, 12 volts is supplied directly to the ecm and burns the circuit board. The other option is the air flow meter, this is also a very common problem but typically a p0171/p0174 would be stored in self diag.
Posted on Jun 22, 2009
First I need to ask is it a 4 speed or a 3 speed transmission. If it's a 4 speed when driving down the road pull it from drive to third gear. You shpuld hear the engine speed up if it does not then that means you have on 4th gear and you will have to take it to a transmission shop. If it's a 3 speed then just count the shift points if all 3 gears are present then drive down the road and see if the van goes into tcc. When you mean the rpms are high how high are they.
Posted on Jul 15, 2009
SOURCE: when the boat is in
The last comment you made about the hose cuffs and running good- Was that in gear or neutral? If you are using the boats throttle lever there is a cam lever for the choke which limits the throttle. It may be out of sync in the control box. If you have operating cables disconnect them at the engine and see what range of motion you have in the motor itself. Then hook up the controls and see if the cables prevent the motor from opening the carbs.
Posted on Aug 01, 2009
an ignition coil and/or wires seem to cause the most trouble when cold or damp. Sounds like you have a bad coil or wire(s). Spray down ignition coil and wires with water (in a spray bottle). If the engine reacts you may be onto something. I have also seen carbon tracking on the spark plug that can cause this. Cracked coil housings are common on a lot of Ford ignition systems
Posted on Aug 05, 2009
2 things need to be done first start your bike get a can of wd40 after your bike is warm and running spray around the carb jointsall 4 of them if your engine changes rpms up or down you have a intake leak ether your carb joint gaskets or o-rings need replacing or your carb joints are old and need replacing. at this point wont hurt to have you carbs cleaned also
Posted on May 03, 2010
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