Not Sure: Honda 125 cc | 2 or 4 stroke ?

[T-man]

A friend of mine came into town and brought his 3 wheeler he got about a months ago. He got it from a guy that said it was a 2 stroke and needed mix fuel. But looking at it ... Im not sure. it has an oil light indicator and a place to put oil. When I asked him about the oil fill spot he said that he was told it was for the transmission .. But I'm not sure of that. I cant tell. Do these engines have a separation like that? One place for trans oil and then use mix gas? If so what mix would the fuel be ?
.
.

 

[Russ2251]

2 cycle

 

[T-man]

ok 2, what about the other stuff?

 

[Mammoth]

On a 2 stroke the transmission is separate from the crankshaft/piston and needs its own oil.
When you mix oil with the gas it is to lubercate the crankshaft bearings, connecting rod bearings, and cylinder.

 

[Russ2251]

Can indicate model number?

 

[rocketkart]

i don't think thats a honda. it look more like a Yamaha Tri Moto 175 1984 ish. this what a 1986 honda 125 looks like

and what a Yamaha Tri Moto looks like

 

[Russ2251]

rocketkart beat me to it...!!!

 

[rocketkart]

A friend of mine went into town and took my 3 wheeler with hem that he got about a month ago. i would like it back !!!

 

[Mammoth]

Here is some 2 stroke cases that are apart. You can see how the transmission is separate.

 

[mindymogul]

Quick Tip to tell: 4 Stoke has a Cam or valve cover. 2 stroke doesn't and a 2 stroke has a auxiliary oil tank. Also the muffler is a bit more funnel like than a 4 stroke which is more of a can shape.

 

[Russ2251]

4 St(r)oke has a Cam or valve cover.

Not necessarily.

 

[T-man]

awesome info. Yeah after seeing the pics I would say its a Yamaha Tri Moto (yellow). Would you know the mix for the fuel?

 

[Russ2251]

Would you know the mix for the fuel?

It is automatic. That's what oil tank is for.

 

[T-man]

cool . so we could just put in regular fuel from the pump? also the only number on the engine I could find was ... 4U3-011210

 

[rocketkart]

i would not trust the oil injection. pre mix 40:1 oil.

 

[Russ2251]

Straight pump gas is what is called for. Make sure oil tank is full...keep an eye on it.

 

[T-man]

Ok, sounds good. I just Googled the number and it looks like a 1981 YT125H.

 

[mindymogul]

I'd go with rocket on this one. Aux oil tanks can be finicky. I run 40:1 straight from the fuel tank on my ATC200s, 2 stroke snowmobiles, and '72 GT550 and '73 GT750. It seems to run a lot better and you don't have to worry about as much maintenance.

 

[Russ2251]

Aux oil tanks can be finicky.

Yup...
About as common as exploding flywheels.

 

[mindymogul]

Anyways. That's what I'd do. It works out better than factory for what I have and it might for that 125cc. Cleaning the oil tank ain't fun when it comes to it. 6 to 1 really...