I got this dirt bike from a friend today, its a yamaha. He said its a 1986 100cc but he doesnt know the model. Its a 4 stroke. I want to know what model it is so I can find some parts and manuals and what not for it. Here is a couple pictures of it.



Is there a vin or number somewhere I can use to find out the model?

 

bump

 

not by that tank and seat, they dont belong on that bike

 

RT100 maybe?

 

looks like an RT100 to me. It is 2 stroke.. even though the pipe would suggest otherwise.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by MADEINIRAQ &raquo;</TD></TR><TR><TD CLASS="quote">looks like an RT100 to me. It is 2 stroke.. even though the pipe would suggest otherwise.</TD></TR></TABLE>

i second the rt100. It is a two stroke but not conventionally. It uses its own mixing mechanism where you pour the oil and gas in separately and it mixes them for you.

 

how can I tell if its a 4 stroke or 2 stroke then?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Al_9000 &raquo;</TD></TR><TR><TD CLASS="quote">how can I tell if its a 4 stroke or 2 stroke then?</TD></TR></TABLE>

if you take off the side plastic piece, there should be a plastic reseviour(sp?) and if so, that is where the oil goes and it is indeed a two stroke.

Im pretty sure that bike is an air cooled two stroke.