No chokes. It has an electric primer – part #34 in link below. Also – I must be remembering it wrong as a 4 cylinder. Parts list shows 3 cylinders, 3 carbs, so maybe it’s runnin’ on 2 of the 3 cylinders. I notice each carb has a different part number – interesting!.
Here’s a link to exploded view of carb parts: https://shop.yamahaonlineparts.com/OEMpartfinder.htm#/Yamaha_Outboard/50TLRC_-_2004/CARBURETOR/ca86f2bb-ecd3-4be4-8622-337eac184d69/8f531dd5-ab24-423b-acdf-10d1574f6de4/y
I been thinking about it more and If a cylinder is dead, I can find the dead one by starting it with different spark plug wires disconnected and see which one makes no difference in how it runs at idle. I’ll be doing this out of water with garden hose clamped to cooling intake. I may also notice that one spark plug stays cold. When removed, one plug may be wet. I also have a seldom used in-line neon spark flasher/indicator I can put between the spark plug and its wire. If the sun isn’t too bright, I will see the neon bulb flash if there is spark voltage.
I also plan on a look at the throttle linkage to see if some adjustable part (if any) has come loose, preventing carbs and/or spark advance from going to max., or maybe one carb has throttle disconnected, if that’s possible.
It’s a tiller motor, so easy to advance throttle and see what moves….to a point – the intake cowl on the carbs blocks view of some stuff. I seem to remember it has cables going in from the tiller – maybe something slipped inthe throttle cable causing it to not go to WOT.
If I start it with a spark plug wire off, do I have to ground it to keep ignition parts from self-destructing?
Dave
