2-19
MESURE DE LA PRESSION DE COMPRESSION
MÄTNING AV KOMPRESSIONSTRYCK
INSP
ADJ
ATTENTION:
VIKTIGT:
Avant de déposer les bougies, nettoyer à l’air com-
primé toute la saleté accumulée dans les orifices des
bougies pour qu’elle ne tombe pas dans les cylin-
dres.
4. Installer:
S
Compressiomètre
1
Kit de compressiomètre
90890-03081, YU-33223
Adaptateur pour compressiomètre
90890-04136, YU-33223-3
5. Mesurer:
S
Pression de compression
Supérieure à la pression maximale
!
Rechercher
d’éventuels dépôts de calamine sur la culasse, la
surface des soupapes et la tête de piston.
Inférieure à la pression minimale
!
Verser quel-
ques gouttes d’huile dans le cylindre concerné et
mesurer à nouveau.
Se reporter au tableau suivant.
Pression de compression
(après avoir versé un peu d’huile dans le cylindre)
Valeur affichée
Diagnostic
Supérieure à la
valeur obtenue
sans ajout d’huile
Segment(s) de piston usé(s) ou
endommagé(s)
!
Réparer.
Identique à la
valeur obtenue
sans ajout d’huile
Piston, soupapes ou joint de
culasse probablement
défectueux
!
Réparer.
Pression de compression
(au niveau de la mer)
Pression de compression
(au niveau de la mer):
Standard:
1.450 kPa (14,5 kg / cm
2
, 206 psi)
à 400 tr / mn
Minimum:
1.260 kPa (12,6 kg / cm
2
, 179 psi)
à 400 tr / mn
Maximum:
1.620 kPa (16,2 kg / cm
2
, 230 psi)
à 400 tr / mn
Innan du tar bort tändstiften, ska du använda
tryckluft för att blåsa bort smutsansamlingar
runt tändstiften för att förhindra att smuts
hamnar i cylindrarna.
4. Montera:
S
Kompressionsmätare 1
Kompressionsmätare
90890-03081, YU-33223
Adapter för kompressionsmätare
90890-04136, YU-33223-3
5. Mät:
S
Kompressionstryck
Om maximitryck överskrids
!
Kontrollera om
topplocket, ventilytorna och kolvtoppen uppvi-
sar sotavlagringar.
Om minimitryck underskrids
!
Spruta in några
oljedroppar i den berörda cylindern och gör om
mätningen.
Se följande tabell.
Kompressionstryck
(med olja insprutad i cylindern)
Avläsning
Diagnos
Högre än utan
olja
Kolvringen (-arna) slitage
eller skada
!
Reparera.
Samma som
utan olja
Kolv, ventiler,
topplockspackning kanske
trasiga
!
Reparera.
Kompressionstryck
(vid havsnivå)
Kompressionstryck (vid havsnivå)
Standard:
1.450 kPa (14,5 kg / cm
2
, 206 psi)
vid 400 varv / min
Minimivärde:
1.260 kPa (12,6 kg / cm
2
, 179 psi)
vid 400 varv / min
Maximivärde:
1.620 kPa (16,2 kg / cm
2
, 230 psi)
vid 400 varv / min
Summary of Contents for RX10LTGTAX
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Page 982: ...SERVICE MANUAL MANUEL D ATELIER INSTRUKTIONSBOK ...
Page 1515: ...8 19 LIGHTING SYSTEM CIRCUIT DIAGRAM LIGHTING SYSTEM ELEC ...
Page 1527: ...8 25 SIGNAL SYSTEM ELEC SIGNAL SYSTEM CIRCUIT DIAGRAM ...
Page 1555: ...GRIP WARMER SYSTEM ELEC 8 37 HI LO GRIP WARMER SYSTEM CIRCUIT DIAGRAM ...
Page 1564: ...8 42 CARBURETOR HEATER SYSTEM ELEC HI LO B W L R CARBURETOR HEATER SYSTEM CIRCUIT DIAGRAM ...
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Page 1664: ...Yamaha Motor Canada Ltd 480 Gordon Baker Road Toronto ON M2H 3B4 ...