| Diagram | Fig. 5 — CYLINDER BLOCK AND HEAD TR7RV · ref 48 |
| Subsystem | engine top |
| Listed in parts books | 1978–1980, 1985 |
Rocker (left exhaust, right inlet)
Left exhaust / right inlet rocker arm for T140E, T140V, and TR7RV cylinder heads.
This is a rocker arm out of the top end, part number 71-7043, listed as left exhaust and right inlet. It appears in the parts-book figures for the cylinder block and head assemblies on the T140E, T140V, and TR7RV, so it's a piece that lives up top between the camshaft and the valve gear, transferring the lift from the cam follower and pushrod down to the valve stem.
Read more
Rocker arms take a beating over the years - they pivot constantly under load, and the pad that contacts the valve tip and the bore where the spindle rides both wear over time. If you're pulling a rocker box apart because of noise or oil weep, this is one of the parts worth inspecting closely.
The catalog entries span 1978 into the mid-80s across those T140/TR7RV heads, so it's a part that saw a run of years on the unit-construction 750 twins in that later era. Give us a call if you're not sure whether the head off your engine takes this specific left-exhaust/right-inlet version versus its opposite-hand counterpart.
Sorry if we got something wrong here. If you think this information isn't correct, .