Nissan controls

kenawell1

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When buying controls are the specific to the motor? I have a 25hp 2stroke elec start. I see nissan sells their controls marked for 2 or 4 stroke. If i was to buy a used control how do i know what its for?
 

pvanv

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Re: Nissan controls

When buying controls are the specific to the motor? I have a 25hp 2stroke elec start. I see nissan sells their controls marked for 2 or 4 stroke. If i was to buy a used control how do i know what its for?

While all Tohatsu/Nissan controls use standard Morse cables for throttle/shift, there can be (are) differences in wiring, depending on what model motor is used. What is your model/serial? Is it a Remote motor, or is it tiller-steered? Do you want an "all in one" side-mount control (with integrated key switch), or a separate key switch (on its own panel), as used with binnacle-style or some Teleflex controls?
 

kenawell1

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Re: Nissan controls

I have a Nissan 25c3 tiller . elec, and manual start. I plan on buying the src kit and cables,steering cable/wheel. I dont need a key/choke at the console but i have all the wiring dia. to wire up whatever I get or decide to add. I dont plan on having the tilt/trim. I Seen a used Tahatsu RC without tilt/trim, No key. "key #" listed inside. The wires matched up to my manual. I mainly was wondering why the nissan controls are listed engine specific. The Guy tells me theres no other stickers on it.
 

kenawell1

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Re: Nissan controls

Without looking again i think there was 4 or maybe 5 small colored wires coming out. They all matched to the colors needed in my manual to do this job. No big plug. Is the key available and easy to get as long as there is a key code inside? I have never bought controls before. Would I be better to look for an aftermarket with this same application?
 

pvanv

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Re: Nissan controls

The current RC box for that motor would be 383Q843504, RC BOX, RC8C (NSF8A3/9.8A3-w/elec. start), AMB, $386.13. It would be painted the new "aquamarine" (almost black) color, and would have the key start with push-to-choke feature. If you want the original color scheme and key start (with push to choke), you would get 383843503M, RC BOX (RC5C) NIS, ELECTRIC, 5//8/9.8/9.9/15/18/25/30/40C, $386.13. If you prefer to keep the push-button start at the motor, and skip key start, the appropriate original-color RC box is 373843602M, RC BOX (RC5D) NIS, MANUAL, NS5~40C & NSF4/5/6, $312.32.

Regardless, you will need 3A1838801M, SRC KIT;9.9B-18C,25,30, $172.32, which will come with the hook plate for steering. You may need a 346849051M, DRAG LINK ***'Y, $70.96, to attach to the steering cable, depending on the setup you get. If you will be running the old 2-cable "tiller cable" steering, the hook plate will suffice. If you will be running the more modern Teleflex-style single steering cable, you will need the drag link.

Keys are available from any dealer, including me, (as are the rest of the bits you will need). You just need the key number, which will be on the switch/lock housing. You can read that once you open up the RC box. Cost is $16.22 for a pair of keys. If there are just a few short wires coming out of the control, those are probably intended for the tach and other instrumentation. If they are enclosed in a longer harness, say about 4.7 meters, they are supposed to route back to the motor. There is also a 2-meter extension cable available.
 

kenawell1

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Re: Nissan controls

tah control.jpgtah3.jpg

Here the item thats for sale. No stickers or numbers. I will be buying some of the items you said, from where im unsure yet. .
 

pvanv

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Re: Nissan controls

That looks like the RC5C, which is 383843503M in the Nissan label -- only difference is you have the Tohatsu label. Should work fine for your use. Don't forget to get decent throttle and shift cables (and the clevis connectors) when you order the SRC kit.
 

kenawell1

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Re: Nissan controls

pvanv,
Thanks for all the help! I may have more questions to come! what mid grade steering and throttle/shift cables to do reccomend? I dont think i have seen or read about the "clevis" is this something not included in the src kit ? What all exactly is included in the src kit? If your a dealer and prices are reasonable i would rather give you the business.
Went out today for a little boat ride. Have you ever heard of the nissan's jumping in gear at mid throttle range while sitting still warming up? This has happend twice now. The first time we figured it was not in neutral the whole way? But it happend again. btw we fished for like 6 hours and only caught 1 bass like 14 inches. I havent had a day like that in a while!

I dont see the item number? i see this one - Remote Control Box, Blue, Sidemount, For Tohatsu, 2-STK, 8 B hp - 40 C hp, All Models, FREE SHIPPING --RC3B7Q843402M-3 ??? am i missing it?
 

pvanv

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Re: Nissan controls

We like to use the Hi-Lex control cables that we get from Tohatsu. Mid-grade pricing, and hi-grade performance.
The steering cable would depend on what wheel you will be using.

All control cables come with a threaded end. The control box has a clevis pin. In order to connect the two, you need a nylon clevis, retained by an e-clip. If the old ones are still on the control, you are OK. If not, new ones are cheap and available. I have a few on the shelf. The ones at the motor end come in the SRC kit. That kit has the bits needed at the motor end; again, depending on your steering setup, you will also need a drag link.

No, these motors don't typically "jump into gear". But, if the shifter detent ball is missing, the shifter could be free to go to any position. I would expect a grinding sound if the shifter starter to migrate into an in-gear position as the clutch dog started to chatter.

3B7Q843402 is superceded to 3B7Q843403, RC BOX, RC5B (MFS-15/18B2-15/20C-25B/30B EP) W/O PTT, AMB. That box is a 5B, and is in the newer "aquamarine blue" (almost black) color... You want a 5C if you want key start, or a 5D if you want to just keep the push-button start on the motor... different wiring. And ideally, in charcoal grey color to match the vintage of your motor.

A lot of these questions would be answered by reading the Factory service manual (available from any dealer, including me) (forget the aftermarket manuals). I would recommend getting 003-21035-1, SERVICE MANUAL, 1 & 2 CYL, 2-STROKE, $45.00, from any dealer.
 

kenawell1

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Re: Nissan controls

Paul,
While sitting still warming it up, if you turn it about mid thottle and hold steady you heard like a semi loud "click , click, click sound then the boom from it jumping in gear. Could the higher rpm vibration cause it to slip into gear? I have the 1 manual.
 

pvanv

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Re: Nissan controls

Does the shifter handle actually move itself into gear? When you try to operate the shifter, is it stiff or sloppy?
 

kenawell1

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Re: Nissan controls

The shifter detent ball seems to be in place. You hear and feel the audible click noise when shifting it. I am not 100% but I think it does move into gear. Is the clicking noise normal? It doesnt seem like it to me .
 

pvanv

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Re: Nissan controls

If you are hearing a clicking from the LU when the shifter is definitely in neutral, something is wrong in the LU... in that case, I would take it apart and inspect it.
 
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