Loss Of Power; Engine Overheats - Triumph SPEED TWIN 1945 Workshop Instruction Manual

FAULT FINDING
L O S S O F P O W E R
Faulty Sparking Plugs
...
...
...
Incorrect Tappct adjustnicnt
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Lack or Lubrication
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Weak o r broken Valvc Spring
...
...
Sticky Valve
...
...
...
Valvcs n o t scating
...
Broken o r guninicd up Pistol1 Ring
Brakes binding
... ... ...
Enginc r c q ~ t i r c s Dccat-bonising
...
Head Gasket blowing
...
...
A i r Filter choked
. . . . . . ...
0.
D i r t y Carburctrcr
... ...
Lack of Lubrication
Faulty Sparking Plugs
...
...
...
...
Engine requires Dccarbonising
. . . . . .
...
Ignition Timing t o o latc
. . . . . . ...
...
Exhaust Valvc burned, o r pittcd Valvc Scats
...
...
Silenccr choked
...
...
...
...
...
Piston Ring w o r n o r scircd
111
Pistoti Groovc
...
Weak M i x r u r c
... . . ... ...
Change.
Scc Pagc 36.
Scc that O i l Ind~cator Button
i s
working (Scc Page 28).
Chcck Supply i n O i l Tank.
Rcmovc Cylindcr Hcad (Scc Pagc 38).
Rcrnovc Cylinder Hcad (Scc Pagc 38).
Scc Pagc 38.
Scc Pagc 16.
Placc Marlt~t,c oti tlic Stands and rc-adjust Brakcs.
Scc Pagc 37.
Changc Gaskcc.
Rcrnovc, wash i n Pctrol, r c - o i l and rcplacc (Sce Pagc 153).
Rcmovc and Clcan.
E N G I N E O V E R H E A T S
Clicck supply of O i l , scc that t h c Indicator Button
is
operating when t h e engine
i s
running:
i f not, r c f c r t o Pagc 28. Ensure that the correct O i l
i s
used.
Can cause prc-ignition: change and tcst.
Scc Pagc 37.
Check Timing (Scc Pages 67 and 68).
Scc Pzgc 38.
Rcmovc and clcan i n a solution o f caustic soda.
Disrnantlc Etiginc (Scc Pagc 42).
Partly chokcd Jct, wot-n T l i r o t r l c Slidc, clicck by closing A i r Lcvcr.
ENGINE REVOLUTIONS P E R MINUTE