My Honda EB3500X Shuts off when auto throttle is switched on making me run full throttle at all times. Cause? Solution?

There could be several reasons why a Husqvarna K970 shuts down at full throttle after it warms up. Here are some possible causes:

1. Fuel system problems: The carburetor may be clogged or dirty, causing a fuel delivery problem. This can cause the engine to stall when it is running at full throttle.
2. Air filter problems: A dirty air filter can restrict the flow of air into the engine, causing it to run too rich and stall at full throttle.
3. Ignition system problems: A faulty ignition system can cause the engine to stall under load. This could be due to a failing spark plug or a bad ignition coil.
4. Overheating: The engine may be overheating, causing it to shut down when it reaches full throttle. This could be due to a cooling system problem or an issue with the engine itself.
5. Mechanical problems: There could be a problem with the engine or other mechanical components, such as the piston or crankshaft.

If you are not comfortable troubleshooting the problem yourself, it is best to take your K970 to a qualified service technician for diagnosis and repair.

It seems like you may be experiencing a short in the neutral switch of your Honda outboard motor. This issue could be causing the engine to shut down when you push the throttle past trolling speed. If you're able to manually run the engine without the shifter and it runs full tilt, this could further support the possibility of a short in the neutral switch. You may want to have the switch inspected and repaired or replaced by a qualified mechanic to solve the issue.

Make sure that the choke is not stuck on , the coke can be a automatic type that is controlled by the cars system which is attached to the fuel intake system by a cable make sure it is not stuck and is working

from your description and what you do , the problem is in the auto control unit
it will be in the system to reduce the rpm to idle when there is no load ( auto mains on off controller switching between genset and mains supply)
by turning the auto operation off you are committing the gen set to full rpms regardless of the power requirement
you have the option of having it fixed at an gen set repair shop or leaving it off and starting the genset only when you have a mains power outage
check with an electrician to ensure that it is possible to run it that way as if the mains power unit is not correct , when you start it and you still have mains power , it will destroy the gen set

Check out the switch on the stand if it is faulty or out of position it will cause engine to shut down when you select a gear,
let me know how you get on

you need too adjust the high jet ccw (making it richer) do do that takes
a little work cause you need a special tool but I can help you around that if you like. let me know

I would check the Diaphragms of the carbs before I did anything else. A tiny pinprick in one of these can cause weird running problems. If that doesn't fix it then look at the ignition timing.

Try this site for all info on your bike and a very good forum.
http://vt750dc.com/

Hi. There are 2 things that control the Auto Throttle and that is the idle control valve (Connected with black and yellow wires) and the Auto Throttle Unit.

Start Generator
Check for 12VDC on the Yellow wire of the idle control valve. Yellow is positive to any good Chassis ground. If you don't have 12VDC then either the Auto Throttle switch is bad or the Auto Throttle Unit iself.

You can gain access to the Auto throttle switch and again check for 12VDC to Ground on both sides of the switch with the switch on. (It may read as high as 13.8 engine running) If you don't get 12 - 13.8 VDC the the Auto throttle control unit is bad

If you have 12VDC to the Idle control Valve and it does not work perform a resistance check across the coil of the Idle control Valve (both wires disconnected Engine off) Black to yellow should read 3 to 4 Ohms If you have no resistance then the coil in the Idle control Valve is bad.

If you need more help just respond here

Kelly

the on position is controlled by intake vacuum and shuts down the flow when not running, reserve bypasses this and can be used for priming the engine, off means off, i hope this helps

This sounds like the idle control solenoid has become misadjusted. To check that this is the case, locate the throttle lever and follow it back towards the governor arm until you find the solenoid. Start the generator and switch on the idle control while watching the governor arm where it passes near the solenoid, if the arm snaps back and forth you probably have a bad adjustment. To readjust the solenoid loosen the jam nut on the core of the solenoid just enough that you can turn the core by the square bit on the end. Adjust the core 1/4 turn or so at a time until the governor arm stays in position when the idle control is on, then turn idle control off and make sure that the governor arm goes back to the full throttle position. You may have to fiddle with the adjustment a little until you find the right spot. Tighten the jam nut back down and you're good to go.

Carl