Yamaha 200hp out bord wiring diagrams(for boat)

Should be easy. It is all DC voltage. One hot and one ground. Not sure why you need a diagram for dc.

This may sound funny, but for a while, Yamaha put a steel bolt in the aluminum casing on the side of the motor. dissimilar metals caused extreme corrosion inside that affected operation. Check out Boating forums on Yamaha.

Sounds like it has a fuel restriction. Hook up a fuel pressure gauge on the vst tank on the motor to make sure you have 30-50 lbs of fuel pressure.

I purchased a wrecked 2006 fjr Yamaha 1300--I removed engine and put it on a air boat --I don't need all the wiring harness--i would like to condense the wiring down to just what i need to run engine & charging circuit--any suggestion will be appreciated. Thanks ken

no. a unmodified transom bracket may need to be moved not removed. Since the tilt motor is out you will need to manually lift the engine. you can see the picture diagram at www.yamaha-motor.com. click on outboard motors,parts and service, view parts catalog. find your year make and model by following steps listed at top. select power trim and tilt assembly. in the picture you will see the location of the Manuel release valve on the starboard side. turn the Manuel release valve then lift the engine. tie it up or use a stand to keep it up,do not use the tilt lock. with the engine in full tilt position, you can see the motor. some brackets are modified were you can remove the motor without moving the transom bracket. If unmodified you'll need to follow these steps. (1) lower the engine back down.the steering arm needs to be removed from the steering cable and swung forward. do not remove steering arm from engine. on the starboard side of the engine you will see the steering cable going into the steering cable tube. (2)a 1 1/6 nut secures the cable to that tube remove it and slide cable out do not remove it.(3) lift engine again and secure it. your about to remove the motor mount bolt so make sure you secure the motor completely (4)remove upper and lower transom to bracket bolts remove bolts on the port side only.(5) you will see three bolt that go through the transom bracket to the trim and tilt assembly. remove them.(6) if all bolts are removed you will be able to slide the port transom bracket to the left out of the way(7) remove tilt/trim motor.

http://www.boats.net/parts/search/Yamaha/Motorcycle/1971/DT1E/parts.html

The above site has full diagrams for the whole bike (1971 DT1E), diagr. below from site shows elec. components, hope it assists you.

Check your tank screen. Check your lower unit and the propshaft for fishing line wrapped around it. Check under the cover and observe the wires on the stator which turn to advance the timing. It sounds like you have no torque.