Ss-cycle T111 Engine Assembly User Manual download pdf (Page 13)

- Initial Start-Up And Engine Break-In

NOTE - engines are designed for high performance and as

uch are not as tolerant of inadequate break-in as stock or

lower performance engines. Correct break-in will assure

longer engine life and will prevent unnecessary engine

damage. Engine damage caused by improper break-in is not

covered under the S&S

warranty.

A- Initial start-up

1- For the initial start up, the fuel and ignition

systems should be adjusted to their baseline

settings. (Baseline settings allow the bike to start

and run, and are the starting point for tuning.)

This is adequate for the initial start-up and heat-

cycling of the engine.

NOTE - Because there are several ignition and fuel system

combinations possible with the S&S

T111 engine, baseline

settings are not listed here. Refer to the appropriate ignition

or fuel system instruction sheet.

2- Run engine approximately one minute at 1250-

1750 rpm. DO NOT crack throttle or subject to

any loads during this period as head gaskets are

susceptible to failure at this time. During this

time, check to see that oil pressure is normal, and

that oil is returning the oil tank.

3- Shut off engine and thoroughly check for any oil

leaks, fuel leaks, or other problems. Let engine

cool to the touch.

4- After engine has cooled, start up again and allow

the motor to build some heat. Engine should not

be run longer than three to four minutes. When

the cylinders become warm/hot to the touch

(approximately 150°) shut the motor down and let

it cool to room temp. Follow the same cautions as

for the initial start-up, and continue to watch for

problems.

5- Repeat this procedure 3 or 4 times. Each

successive time it should take slightly longer to

warm up and you can increase the temperature

slightly each time. You can be more liberal each

time with the rpm, gently vary rpm continuously

from idle up to 2500 rpm in the final cycle. The

motor should not reach full operating

temperature during these cycles. Do not allow

engine temperature to become excessive.

. Engine break-in

1- Closely monitor engine for excessive heat build-

up. Do not allow the engine to idle for long

periods of time. Be especially watchful when air

emperatures exceed 90 degrees. Slow speed

operation in urban areas during the summertime

is especially hard on engines.. Temperature for

engine oil should be between 180º - 240º F. If

engine oil temperature stays above 220º F, and

correct ignition timing has been verified, S&S

Cycle suggests that an oil cooler be installed. Do

not run engine under conditions where oil

temperatures continue to remain high.

2- For the first 50 miles ride the motorcycle in a very

conservative manner. The first 50 miles are most

critical for new rings and piston break-in. Engine

damage is most likely to occur during this period.

Keep heat down by not exceeding 2500 rpm.

Avoid lugging the motor, riding in hot weather

or in traffic. Vary the engine speed. Do not lug

the engine. Change the oil at 50 miles. This will

remove the heavy accumulation of break in

residue from the oiling system.

3- The next 500 miles should be spent running

engine no faster than 3500 rpm or 60 mph.

Correct any obvious ignition or fuel problems, if

present. Avoid continuous steady speeds, and do

not lug the engine. Vary engine rpm. change the

oil again at 500 miles.

Lugging or running engine prematurely at sustained high rpm

may result in damage to pistons and other engine

components. S&S voids it’s guarantee if engine is not broken

in properly.

4- For the balance of the first 1000 miles the motor

can be run in a normal but conservative manner.

You can be more liberal with the rpm range and

motorcycle can be operated at normal highway

speeds. Avoid overheating or putting any hard

strain on the engine: no drag racing, dyno runs,

excessive speed, trailer towing or sidecar

operation.

5- After 1000 miles, verify Ignition and fuel system

settings and adjustments. Change the engine oil.

The break in process is complete.

CAUTION

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Ss-cycle T111 Engine Assembly User Manual Page 13

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