belts for a 1990 flht
Extreme HDF Member
Joined: Sep 2010
Posts: 14,744
Likes: 402
From: Phoenix '53, '88, '09 Big Twins
rear belt 136 tooth- 40001-85
primary chain- 40037-79 ( yes, chain in the primary)
check the pulleys dont have gouges in them.
if you want a 15% overdrive you can use the 61T pulley and the 132T belt- your bike would need some grunt to take advantage of this...I did this on my FXR.
here's an online parts finder, select year
model
assembly
the part numbers are shown in the cart, and you can jot them down.
http://partsfinder.onlinemicrofiche.....asp?make=hdmc
mike
primary chain- 40037-79 ( yes, chain in the primary)
check the pulleys dont have gouges in them.
if you want a 15% overdrive you can use the 61T pulley and the 132T belt- your bike would need some grunt to take advantage of this...I did this on my FXR.
here's an online parts finder, select year
model
assembly
the part numbers are shown in the cart, and you can jot them down.
http://partsfinder.onlinemicrofiche.....asp?make=hdmc
mike
Club Member
Joined: Jun 2007
Posts: 45,429
Likes: 2,898
From: Bedford UK
61T is International spec, I had one on my 1990 FLHS when it was new. I now have a US spec 70T, which is much better, even with my 107" motor! I don't recommend you fit one, it will raise your gearing by 15% which is frankly too much. The only reason they were used is that in some foreign markets the noise regulations were more strict than US market.
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richk357
Primary/Transmission/Driveline/Clutch
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May 28, 2008 05:41 PM
