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kinger
06-20-2006, 02:51 PM
My brother just got a yamaha yt125 in fairly good condition... but we arent sure what year it is and i need to know how to find out:confused: any and all help appreciated alot . thanks, Ben
Dusty
06-20-2006, 03:10 PM
do you have a pic......
kinger
06-20-2006, 03:12 PM
no sorry i dont
kinger
06-20-2006, 04:09 PM
does anyone know the ratio for mixing the gas in it??
kinger
06-20-2006, 04:17 PM
doesnt the year have to do with the number on the frame?
Unclediezel
06-20-2006, 07:09 PM
give us the first three numbers on the steering stem------
Yamaha Tri-Moto
06-20-2006, 07:19 PM
Ya, look at that and as for fuel/oil mixture im not sure about the 125's but I know the 175's are oil injected. If yours is not or has been taken off I run eaither 20:1 or 32:1.
Unclediezel
06-20-2006, 09:16 PM
The 125's are also oil injected, and work pretty well, but I dont trust them. A mouthful into tank is cheap insurance, and a great Mosquito repellent.
Yamaha Tri-Moto
06-21-2006, 12:06 AM
Ya, I took the injection off of my 175 also, I feel safer that way.
Erics350x
06-21-2006, 12:19 AM
40:1 i think. but no promisses..lol
kinger
06-21-2006, 12:51 PM
ok well after i posted the question about the ratio we were taking it apart to calean the carb and stuff...and we noticed it was oil injected... the first three numbers/letters are 4u3
kinger
06-21-2006, 02:08 PM
we can not get it to start...what's the problem? the engine is getting gas and the plug makes a spark but it doesnt even sound like its trying to start... HELP
Unclediezel
06-21-2006, 07:35 PM
Take the plug out---put your finger over the hole tightly, and give it a rip---it should "PUFF" past your finger.
kinger
06-22-2006, 08:24 PM
yea there is good pressure but it seems to be getting too much gas...how do i fix that?
kinger
06-22-2006, 10:09 PM
YES!!! we finally got it running but it wont idle...what are the settings for the different screws on the carb?
steven
06-22-2006, 10:18 PM
look under the front forks. there will be a sticker there that says "this 19__ yamaha blahblahblah, meets emission requirements. " but the year should be there if the sticker is.
kinger
06-22-2006, 11:23 PM
how do u look under the forks???
kinger
06-22-2006, 11:29 PM
the year isnt real important to me... i just NEED to know what the setting are for the idle and wtvr else those screws on the carb are
kinger
06-23-2006, 12:28 AM
HHHHHHEEEEEEEEELLLLLLLLLLPPPPPPPPPPPP MMMMMMMMMMEEEEEEE!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! !!!!!!!!!!!!!!!!!!! PLZ PLZ PLZ

sorry... i kinda lost it there
Unclediezel
06-24-2006, 12:23 AM
4u3-----= 1981 YT125H

The larger "Thumbwheel" screw is your Idle speed
The small screw is idle mixture----
It should be lightly seated and turn out 1.5 turns.

I will almost make "Book" ---Your carb needs to be cleaned
kinger
06-24-2006, 01:03 AM
I will almost make "Book" ---Your carb needs to be cleaned
yea weve cleaned it numerous times...the float was sticking and thats why it wouldnt start but we got it cleaned up really good so i think the idle speed and mixture screws probably just need to be adjusted. thanks for the help on the year too!