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Discussion Starter · #1 ·
I just got an 87 350d for cheap all the owner said it needed was a stator and fuel pump but it is practically all tore apart and has sat for a year it didn’t look bad but when I got it home in the light it was one of those dark and rainy purcheses and help on where to even start on reassembling it.he gave me the stator and pump
 

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You will need the service manual–click the links in my sig block. You want the listing “TRX350 Foreman”

Do you have much maintenance experience? This project is going to challenge you. Biggest issue is that this machine is basically unknown condition.

If the fuel pump is not OEM don’t even bother—non-OEM parts will result in mixed performance
Study up on the fuel and electrical systems for this machine.
 

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The fuel system needs to be clear of obstructions to get good pump flow:

Fuel tank has a drain bolt; you can remove the bolt and drain out old fuel, condensate and solids. It has internal screens at both the reserve and main feed siphons.

The fuel petcock has three positions. Sometimes solids will block the siphons; remove the petcock and use long flexible wire (a old brake or choke cable) or pipe cleaner to clear the line.

The fuel line from the tank goes into a filter. These are special filters—a lil expensive but designed for this model. A clean fuel tank will preserve a new filter (ask how later).

The filter line goes to the pump, which has an intake, output and vent line.

The pump outlet goes to the carb. The vent i think allows the pump diaphragm to move, but that line needs to be hooked up to a vent line that will not drain into the crankcase or drive vent lines. If the pump diaphragm gets a leak, you want the fuel to be discharged not collected.

The pump electric is controlled by the fuel cutoff relay; you can flow test the pump using the manual.
 

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Post some pictures of that '87 tank!

You can get an idea whether that pump you got is worth installing by connecting it to a 12v battery briefly to hear if it's running (clicking noise) Green wire is ground. I wouldn't take much stock in what the previous owner believed were the problems. I'd put it back together and start from square one. Spark, gas, air. The manual is a must but we're here to help too.

Check for spark first because if you don't have that the issue could be the CDI and if the CDI isn't working you won't get fuel either on these 87's, as the CDI powers the fuel cutoff relay, I believe.


'
 

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I am not a 350 A or D guy , 'cept for yanking the rear ends of of them and scrapping the rest , but have read a lot of threads on them , I maybe wrong and mostly am , but I think the 350 was AC for a while and then when DC , always wondered if that is what the A and the D is about ? Reason I am saying this is I think you need to be sure you got the right statr and pickup , Shade is the 350 D guru , he been missing since his Shade Claus run
 

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is it ? A is the trx350,fourtrax and D is the foreman ?
 

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I was comparing electrical components on Partzilla one day for the '87 TRX350A Fourtrax and the '87 TRX350D Foremans. Much of it is interchangeable. Regulator, coil, fuel cutoff relay, for example. The CDI, stator, and wiring harness are model specific, however. Honda changed them again starting in '88, so the '87 Foreman doesn't share those components with any other years or models.
 

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Discussion Starter · #13 ·
I’ll have to get y’all pictures tomorrow. It’s the 350d and I do have the service manual not the owners Manual and that thing is awesome how it showed pictures of how everything goes and I’ve already orderd stuff like new cables for throttle and breaks and plug wire and plug bc it has sat for a while but that’s what I planned on doing is just getting it back together then going from there bc the service manual has in the back a list where it breaks it down in order to finding the problems
 

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I’ll have to get y’all pictures tomorrow. It’s the 350d and I do have the service manual not the owners Manual and that thing is awesome how it showed pictures of how everything goes and I’ve already orderd stuff like new cables for throttle and breaks and plug wire and plug bc it has sat for a while but that’s what I planned on doing is just getting it back together then going from there bc the service manual has in the back a list where it breaks it down in order to finding the problems
Main thing is to buy OEM only and watch out for sellers listing new and used 86-89 parts.

There is a thread that @retro, @Duck0fDeath and others used to pigeonhole year groups of parts – will try to find it.

Careful pulling off that left side case over to replace the stator. Very easy, as I understand, to cause the kick starter shaft to fall out of adjustment–then you’ll have to take the right side cover off too (to put it back in place). Can someone else correct me on that?
 

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Another thing is all the fuel lines are all brittle and all broken so I have no clue where they go
there is only one MAIN fuel line you have to worry about, from the tanks petcock to the fuel filter ( if it still has a fuel filter ? ) then to fuel pump, then to carb. all the smaller lines are just vent lines. only line you need to REALLY worry about ?, is the line from pump to carb !. this line has spec bends to it, and this is very important !.
 
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