Engine Does Not Reach Maximum Rpm - Stihl BR 800 Service Manual

4.15

Engine does not reach maximum RPM.

Check the following
1. Is blower being used at high altitude? Blower ....
2. Is MDG 1 analyzer available?
3. Break in one wire in wiring harness?
4. Are cable lugs on wiring harness and
screws on cylinder dirty?
5. Test engine for leaks, @ 19.3.
Is engine OK?
6. Is fuel system leaking?
7. Is maximum engine speed higher that
8,300 RPM
BR 800
Yes
Go to 2.
Create diagnostic report.
Test blower with MDG 1 analyzer.
Repair completed.
Replace throttle cable with wiring har-
ness, @ 14.2 and @ 15.1.
Go to 4.
Clean cable lugs on wiring harness
and screws on cylinder.
Go to 5.
Go to 6.
Replace fuel hoses, @ 8.2.
Go to 7.
Repair completed.
No
Go to 2.
Go to 3.
Go to 4.
Go to 5.
Replace impulse hose, @ 14.4, man-
ifold, @ 14.6, piston rings or oil seals,
@ 20.4 or seal up or replace crank-
case, @ 20.5.
Go to 6.
Go to 7.
Replace carburetor, @ 8.2.
Repair completed.
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