[aidos]

I have a 2000 70hp 2 Stroke Yamaha motor on the back of my boat and after launching the boat on Saturday, I noticed that by moving the throttle, it wouldn't rev the motor up. I tried doing this in neutral and while in gear and nothing worked. It engages the lower unit fine and makes the boat get in gear but will not take any rpm's. The motor stays on fine and is idling normally. I took the cover off of the motor and can see that by moving the throttle, it is moving the linkage back on the motor fine, it just won't rev up. I changed the fuel/water separator and the inline fuel filter just for grins but I can't figure this one out. Has anyone ever seen anything like this? I appreciate the advice.

[nsamiramcmillanw]

Will it rev up if you manually do it by working the carb linkage? If so could be the cable is binding up or broken. Just a thought someone else may have a better idea for you though. more

[wiskathecat]

[happyrlt]

[links]

[mrchantcashadvance]

[Xaxo]

Toy RCs generally have fixed frequencies and no crystals. The most common 27MHz channel for toys is 27.145MHz but if you are using a toy RC with selectable channels (or bands), be sure both the controller and the vehicle are set to the same channel. more

[kmac]

It might seem obvious, but the RC and transmitter must be switched on before they'll work. It can be easy to forget. Check the switches on both the RC itself and on the transmitter.

[russ]

If this is an RC you've used previously but it's been sitting unused for a while, check the battery compartment for corrosion. It's always a good idea to remove batteries from an RC or its transmitter when it's going to sit on a shelf or in storage for more than a few days. more

[nephia]

RC vehicles communicate through radio signals between the receiver in the RC vehicle and a hand-held transmitter. When an RC won't respond to signals from the transmitter there is often an easy solution. Before declaring the RC defective, try these first seven steps. If it still won't work, you may have to resort to returning the RC or attempting more extensive repairs.

[Innomen]

If the throttle position sensor is not within the intended factory operating range when the motor is activated, the ECM will recognize the TPS as being faulty. This will trigger a cascade of events. First an alarm or warning horn will sound, then the check engine light will light up, next the Digital Diagnostic Terminal will indicate that the throttle position sensor has malfunctioned and cause it to reduce the engine’s RPM. When the engine is activated and begins to run, make sure the throttle arm on the Mercury outboard engine is against the throttle stop screw. See image below for throttle arm location. Do not move the fast idle control lever or throttle forward.

[KathYR1985]

(A) Throttle Position Sensor TPS (B) Throttle Stop Screw (C) Roller (D) Pocket here

[bernardkatz12]

Perform a careful examination to the throttle cable and and make any adjustments if necessary. When examining the throttle stop screw make sure it is against the throttle stop on the cylinder block when the engine is started and running. If it is not resting on the throttle stop, pre-load the throttle cable barrel by rotating it 1 or 2 turns.

[Golobulus]

A throttle position sensor, or TPS, is a device which is used to monitor the air intake of an internal combustion engine. It does this by transmitting throttle angle data to the engine control module (ECM). The ECM then varies the injector pulse accordingly. If the throttle position sensor fails, the warning system will sound an alarm and the ECM will reduce the engine’s RPM. TPS settings can be monitored with the digital diagnostic terminal by way of the ECM but the TPS cannot be adjusted. When powering the engine from idle to wide open throttle the voltage change should occur without erratic behavior. If voltage change is not even or regular in pattern, the TPS is defective. more

[jarlethaanthonyt]

In a hall effect throttle there is a stationary sensor + simple circuit in one part of the throttle. In the moving part of the throttle there is a magnet. The output voltage of the throttle depends on the distance between the magnet and the sensor.

[gregharaksin3]

Since you have already have a test point set up, it should be straightforward to check for voltages. here

[drwhite]

Does the throttle use the connectors shown above or does it use the round Higo connetcors?