Rich Fife
Sally slap my ass
- Local time
- 8:53 AM
- User ID
- 26245
- Joined
- Mar 4, 2023
- Messages
- 708
- Reaction score
- 1,065
- Location
- Central New York
I'm slowly acquiring the parts for this build.
The case was an ebay China case, $40... the tank was a farmertec $38... the 56mm cylinder and piston are from Farmertec, $42.
Yes.... I know that piecing a saw together, especially a china saw isn't the smartest or most cost effective route.
The cylinder plating looks good buuuuut, There is a catch... or two. The lower x-fers are super small and the uppers are a bit large for my liking... lastly the FT piston when at TDC is free porting approximately. 015"... sooo needless to say, that *s-word isn't going to work. Luckily I found a good used 661 piston in my box. Comparing the AM piston and the OEM 661 piston... the 661 piston is approximately .100" taller from the pin to the crown and the skirt is well below the floor of the exhaust... tomorrow I'll get detailed numbers and weights.
The crank seems decent... I gave away my good used oem 660 crank so the China crank will have to do.
I have SKF crank bearings and OEM crank seals that I'll be using.
I have a new oem 660 carb, I machined a velocity stack and I have an UNI filter to boot. I'm certain that I have an intake boot and an oem coil.
Items to purchase... suspension, full wrap, flywheel, clutch items, chain adjuster, chain brake parts, dogs, starter assembly, clutch cover and the list continues...
this might be the most expensive China 660 build. 
The case was an ebay China case, $40... the tank was a farmertec $38... the 56mm cylinder and piston are from Farmertec, $42.
Yes.... I know that piecing a saw together, especially a china saw isn't the smartest or most cost effective route.
The cylinder plating looks good buuuuut, There is a catch... or two. The lower x-fers are super small and the uppers are a bit large for my liking... lastly the FT piston when at TDC is free porting approximately. 015"... sooo needless to say, that *s-word isn't going to work. Luckily I found a good used 661 piston in my box. Comparing the AM piston and the OEM 661 piston... the 661 piston is approximately .100" taller from the pin to the crown and the skirt is well below the floor of the exhaust... tomorrow I'll get detailed numbers and weights.
The crank seems decent... I gave away my good used oem 660 crank so the China crank will have to do.
I have SKF crank bearings and OEM crank seals that I'll be using.
I have a new oem 660 carb, I machined a velocity stack and I have an UNI filter to boot. I'm certain that I have an intake boot and an oem coil.
Items to purchase... suspension, full wrap, flywheel, clutch items, chain adjuster, chain brake parts, dogs, starter assembly, clutch cover and the list continues...
this might be the most expensive China 660 build. 
