vanguard wiring question

[john swenson]

hey friends, the new 21 hp vanguard came with the key switch on the housing. i wired it up to the existing max wires just like the 16 hp was. it fired right up and runs great. the only thing is when i turn the key off it keeps running. any guidance as to what wire or wires i still need to connect. can't find any i missed from the 16. thanks much. j.b.

[Canadian_Zuk]

You need to connet the coil wire to a switch that leads to earth. (Ground out the coil to shut it down). My 96 Vanguard is setup this way, I just use a push button to kill the engine.

[john swenson]

zuk, is the coil the square thing on the side of the motor with the red wire coming out ? there is a white wire coming from the new motor switch and goes into a hole into the engine next to the sq. thing. is that a wire i need to ground. there was'nt one like that on the 16. sorry, i'm not real good with motor electrics. not sure why the old motor shut off, but this one does'nt when the key is turned off. j.b.

[ARGOJIM]

John the engine shut down should be on a stud near the engine tag, The white wire may be the fuel solenoid feed, it was on the last 23 I worked on.

[Nubs]

White is fuel shut off the best i remember also, the square thing is the voltage regulator, the black wire going to the brass looking post on fan shroud is the coil ground.

[john swenson]

nubs, thanks for reply. in your picture which looks just like my new engine, there is the orange wire hooked to the starter solenoid where the pos. battery cable hooks up. that orange wire goes to the switch . i don't have a wire from the max switch hooked up to that post. maybe that's my problem. but i'm not sure which wire from the max switch hooks there. i guess i'm nervous about trying different wires. can i fry something in the new motor if i touch a wrong wire to the wrong spot ? thanks for the patience, i'll keep at it. when i'm back on i will describe each wire from the max switch. maybe that will help. j.b.

[Nubs]

The only terminal post that will cause big problems is the ground/shut off for the coils, if any kind of voltage hits that post the coils are toast.

[Nubs]

Maybe this will help

[ARGOJIM]

John did you hook the wires up directly the way they came off?

If so try this, once started touch a wire directly from the ground to the little stud, if it shuts off the engine is fine.

If it does not the wire may be off the stud on the inside of the engine shroud, which would require removing the shroud.

Also if the engine shuts down to ground it is possible that the 2 black wires on the key switch are reversed if you have a 7 pin key switch. There is a schematic on the home page, if your machine has a plug it should be no problem but if the machine has been converted, or has individual wires, it is possible that they have been reversed.

[ARGOJIM]

http://www.6x6world.com/images/recreatives-industries/Switch-Conversion-5-pin-to-7-pin.pdf

[john swenson]

hey jim, thank you guys for the continued guidance. yes there is a stud on the engine just like in the above picture from nubs. i have no wire hooked to it and was nervous about hooking to it and grounding it in fear of frying the coils. the 16 before did not have that stud. only wires on the 16 coming from the max switch were the red going to the capacitor, black grounded to engine, and the third to the tab on the starter solenoid. hooked them up just like they were on the 16 to the new 21 hp. so now that i have the stud where would that wire go and do i need to remove the old switch and install new one off the 21. fortunately i can kill it with the choke. j.b.

[luffydog]

it would help if you post the model numbers of the engine. in some cases you might have to do some rewiring like have to take the battery cable off of the starter solnoid sides that run to starter and place it to the other side of solnoid and find the kill wiring and replace that down with a splice. to any combos that it could be. best to post engine numbers that way you dont have to guess and mess things up when it could be avoided if all possible.

[john swenson]

thanks buddy, i will get it tomorrow and we can go from there. johnboy

[john swenson]

b and s 21 h.p. vanguard part # 385447-3075. thanks j.b.

[Nubs]

so your saying that it starts and runs now with how you have it wired yes? just will not shut off with the key. just make sure the black kill wire that was on the 16hp is grounding with the key off and clip it on the new motor and your good to go,

all the vanguard v twins wired the same way with the exception of fuel shut offs and low oil shut downs, some had em' some don't