Inlet & Exhaust Valve Kit - A9618061 - Triumph Daytona 675 Manual

Inlet & Exhaust Valve Kit
The use of the following Race Kit inlet & exhaust valves will require changes to the fuelling
and ignition settings. To alter these settings, a Triumph Programmable Race ECU
combined with Triumph TRACS Race Calibration Software will be required. Failure to
correct the fuelling and ignition settings will result in poor engine performance and could
result in engine damage.
Parts supplied - A9618061
Item Description
1 Inlet valve, 29.65 dia
2 Exhaust valve, 24.85 dia
• The valves supplied in the Race Kit are used to increase compression ratio, by
having a flat face on the combustion chamber side. They are made from the
same material and have the same mass as the standard valves.
1. Remove the existing inlet and exhaust
valves following the procedure detailed
in section 3 of the Daytona 675 service
manual.
2. The valve seat widths on the Race Kit
valves are narrower than the standard
valves, therefore the bottom angle
o
(140 inlet / 160
cylinder head valve seats must be
modified to ensure the seat on the head
matches the seat on the valve.
© Triumph Designs Ltd 2009.
Caution
o
exhaust) of the
Page 14 of 47
1
3. Check the head seat and valve seat are
matched correctly by applying a small
amount of engineer's blue to the valve
seat, assembling the valve to the
cylinder head, and rotating the valve
o
through 360 .
4. When the correct match of head seat
and valve seat have been confirmed
assemble the race inlet and exhaust
valves, following the procedure detailed
in section 3 of the Daytona 675 service
manual.
2
Qty
6
6