Manual for TRA-12D

[pmilano1]

Greetings-

I'm up to the wiring on my 1050. I have a TRA-12D that I am putting in (well, it's physically on it already). I wired everything that I know, but need some diagrams or ideally a PDF'd manual for the engine/igition wiring. If anyone has this, or if it was on the old site (I do not recall), I may be able to get the thing going this weekend... I had to resort to a push mower!


Any assistance would be appreciated!

Thanks-

Pete :banghead3

[sixchows]

pmilano1

The wiring will be different since the TRA-12D has a breakerless ignition. Not sure about the ignition switch. Sometimes they are different with electronic ignition. I'll see what I can find.

[sixchows]

Here's a link to sonnysbolens and the manual for a 1254 TRA-12D tubeframe. Scroll through the diagram and compare the wiring diagram and ignition switch to the 1050 manuals posted here .
http://sonnysbolens.com/manuals/images/1254.pdf

[pmilano1]

Thanks for the quick response SC.

I'm not positive, but I would think the switch grounds the coil. These are the questions I have yet to answer... I had a TRA-10D, but upon openning the case, found the cam was split.

I have to pick up the remaining ignition parts this weekend, so I'll be able to get it going then.

Thanks for checking into this for me. I'd love to hear this thing running!

Pete

[pmilano1]

Fantastic. Thanks.

[sixchows]

Glad to help! I'd like to hear it running too! :)

[pmilano1]

I have a couple of miscellaneous questions that somebody may be able to help me out with.

First, the 12D has 2 quarter inch outlets near the carb mount. One top, one bottom. How is this plumbed? The Carb has only one input. Is there a pump in it (I think the 10D had an external vacuum based contraption), or is it just vent/vacuum?

Second, my starter solenoid has two small posts on it. I can probably test it, but is it safe to assume that it's just a second ground?

Anyhow, going to pick up the ignition components in the AM, so hopefully this weekend we'll get some go.

Thanks for all of the help-

P

[sixchows]

The extra connector on the solenoid is probably a ground , but be sure to check with a volt meter before connecting a battery.

I'm not sure about the other queston. What outlets are you talking about? Do you mean spaces between engine parts where you can run a fuel line from the tank on the opposite side?

Are you useing the walbro carb for the TRA-12D or retrofitting the zenith carb from the TRA-10D?

[pmilano1]

Figured I would do just that. I think it will wind up being ground as you state.

Nah, they are actually connections on the block for fuel line. 2 of them. The TRA-10D had only one, which I think served as vent or vac for the fuel line.

I only have the Zenith, so that's what I'll wind up going with. Unless, tomorrow, I can talk Ray's into swapping with me. Is there a concerning difference?

[sixchows]

I think the walbro has more flow which adds to the HP increase.

My TRA-10D's have two lines one is a vent and the other is from the tank. The one from the tank routes behind the flywheel.

PM aguysmiley, he should know more about the TRA-12D, since he has a 1255.

[pmilano1]

Thanks SC.

I PMd him, and hopefully he will have the information that I need. Perhaps even a picture or two.

[sixchows]

Ken's a real helpful guy! I'm sure he can answer any questions you have.

[aguysmiley]

Ok, I went out and took a look at my 1225. It's disassembled at the moment waiting on parts, so it's easy to see in there. There is one port down at the bottom of the block that goes to the pulse hose for the fuel pump. From what I can tell, you are talking about fittings on the valve cover? If that's the case, mine only has one. I have no idea what went on it. There was nothing on it when I got the tractor, and I see no place on the carb or air cleaner for it to connect to. It's just a breather with a baffle in it. My best guess is that it had a short tube that ran straight down so nothing would get in it. Other than that, I see no more fittings.

http://img.photobucket.com/albums/v511/aguysmiley/DSC00204.jpg

[sixchows]

Thanks Ken!
Great pic!

I guess the confusion might be due to the zenith carb not having that fuel pump and therefore not knowing what to do with that line. I'm thinking just plug it and run the one fuel line from the tank to the carb.

Any ideas on if the zenith from the TRA-10D will supply enough gas?

[aguysmiley]

Any ideas on if the zenith from the TRA-10D will supply enough gas?

The Zenith may be a little small, but I don't think it's going to cause any problems. I wonder how much of a size difference there is between the Zenith and the Walbro carbs.

I agree on the idea of plugging the pulse line.

[pmilano1]

I posted another thread, but in short, the motor ran for about a minute. Scared the daylights out of me, so I shut it down pretty quick. Your picture is very helpful, as now I know what goes where. The fuel pump that I have is for the walbro, although if I needed it, I could make use of it. The carb has no short delivery without it, probably due to the location of the tank.
I notice that the throttle wire is from the old walbro, so I'll have to due a little wire hanger fabrication for that.
I will likely plug the pulse line as stated.
The vent (on top), does have a destination on my Air Intake, so I'll route it there.

All in all, the weekend worked out. I'll replace the plug, do the routing, and hopefully have something material in the end.

Thanks for the help-

Pete

[aguysmiley]

Pete
Glad to hear it worked out for you. I guess I could have mentioned that the vent on my S8D is connected to the carb, but sounds like you have everything worked out.