Engine kit fits all years and variations YAMAHA YT125 and YT175  1980-1985
all socket allen bolts are used for ease of assembly. these are hand polished, knurls removed. 
 not just a bag of bolts, sorted and comes with instructions.   cylinder and exhaust studs are not included.




kit includes: 
a:crankcase halves
12 pieces

b:rightside crankcase covers
18 pieces

c:cylinder/head
10 pieces

d:starter cover
4 pieces

44 pieces total