JAP Piston 79.7ccm Mod.80 Type2 +010
45.987mm +020
Model 80, Type 2, Type 71, C80, RS80, Type 2, Two Stroke , Two Ports in middle of skirt. (For Engines with inlet and exhaust ports in line with crankshaft)
with Gudgeon Pin
new, old stock
+20 = 79.5 mm GPM, cpl.
compr. ratio 9.4:1
Made by GPM
Middle gudgeon pin to lowest point of piston: 29 mm
Middle gudgeon pin to highest point of piston: 41,5 mm
Gudgeon pin diam. 19 mm
can be used f. Norton
Piston Clearance 0.12mm or 45thou
with Piston Rings, Gudgeon Pin and Circlips
Alloy Rear Mudguard/Fender
unpolished, new - but not perfect
15.3/4" x 48"
1= 106cm
2= 260 mm from edge - incl. inside measurement 52 mm = total 312 mm
3= 79.5cm
5= 52 mm
6=14cm
Made in England. Good thickness. This is not a Wassell product.
Description f. Measurements in Pictures