Yamaha 115 starting problem

Joined
Jun 18, 2006
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19
I'm not sure if I am logged in. Someone please reply to me so I can continue with my problem solving.
 
Joined
Jun 18, 2006
Messages
19
Re: Yamaha 115 starting problem

rodbolt, if you're out there. When chokes are closed there is about .030 play which seems ok to me. The upper two choke plates have 3mm holes. The lower have 12mm holes. Can I close the lower holes with washers and a screw with nylon lock nuts or do you have a better way to block them. thanks.
 

rodbolt

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Sep 1, 2003
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20,066
Re: Yamaha 115 starting problem

I used some rectangular pieces of .040" AL and pop rivets. close off the lower holes and the starting will improve.
 
Joined
Jun 18, 2006
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Re: Yamaha 115 starting problem

Thank you, thank you rodbolt. Plugged the holes in lower carb choke plates and now engine starts very quickly. Makes you wonder why they put such large holes in the first place. Again, thank you.
 

rodbolt

Supreme Mariner
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Sep 1, 2003
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20,066
Re: Yamaha 115 starting problem

they only did it 2 years, the T model run was one of them. I owned one and had the same issues. had someone caught it by 97 or so yamaha was replacing the carbs for free.
just make sure your plug cannot come out and enter the reed cage or worse.
 
Joined
Jun 18, 2006
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Re: Yamaha 115 starting problem

I also use two pieces of retangle 040. aluminum. I sandwiched a stainless washer in the carb plate holes to minimize movement and used a nylon nut to hopefully prevent loosening. I'll check it occasionally. It is a sicking though for those pieces to get inside the engine.
 
Joined
Jun 18, 2006
Messages
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Re: Yamaha 115 starting problem

I also used two pieces of retangle .040 aluminum. I sandwitched a stainless washer in the carb plate holes to minimize movement and used a nylon nut to hopefully prevent loosening. I'll check it occasionally. It is a sicking though for those pieces to get inside the engine.
 

swantzilla

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Aug 9, 2006
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Re: Yamaha 115 starting problem

mygrandson123 said:
I also used two pieces of retangle .040 aluminum. I sandwitched a stainless washer in the carb plate holes to minimize movement and used a nylon nut to hopefully prevent loosening. I'll check it occasionally. It is a sicking though for those pieces to get inside the engine.

I like the pop-rivet idea. I wonder if Yamaha will still replace the carbs?
 
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