TUNING THE ENGINE 15
93
Finishing work
–
Install the fuel tank.
–
Mount the seat. (
–
Check the play in the throttle cable. (
15.3
Carburetor tuning
Effects of carburetor tuning
H01400-01
The different carburetor components must be tuned both to one another and for the use intended.
Main jet MJ
The main jet MJ has the greatest influence with the throttle slide open (full throttle).
If the insulator of a new spark plug is very light or white after a brief ride at full throttle, or if the engine knocks, a larger
main jet needs to be used. If the insulator is dark brown or sooty, a smaller main jet needs to be used.
Needle position POS
The needle position has the greatest influence in the mid throttle slide range.
If the engine stutters when accelerating with a partially open throttle slide, the jet needle must be lowered. If the engine
knocks when accelerating at the full power rpm range, the jet needle must be raised.
Cylindrical part of the needle CYL
The cylindrical part of the needle has the greatest influence when the throttle slide is almost closed.
Idling jet IJ
The idling jet has the greatest influence in the low to mid throttle slide range.
If the engine stutters at idle speed or when accelerating with a partially open throttle slide, a smaller idling jet must be
used. If the engine knocks in this power range, then a larger idling jet must be used.
Idle air adjusting screw open ASO
The idle air adjusting screw has the greatest influence at idle speed.
Содержание MC 85 2023
Страница 1: ...OWNER S MANUAL 2023 MC 85 Art no 3215093en...
Страница 2: ......
Страница 86: ...13 WHEELS TIRES 84 Guideline Spoke nipple M4 5 5 Nm 3 7 lbf ft Torque wrench kit 58429094000...
Страница 118: ...20 TECHNICAL DATA 116 Screw front wheel spindle M20x1 5 35 Nm 25 8 lbf ft...
Страница 128: ...2...
Страница 133: ...7 PART 1 7...
Страница 147: ...21 PART 3...
Страница 153: ...27 PART 3...
Страница 167: ...41 ANSWERS CROSSWORD PUZZLE 3 2 4 5 7 6 1 B O O T S F O O T P E G S H G E L L O S M V A E E E F T F C Y L R U D H A C...
Страница 169: ...43 NOTES...
Страница 170: ...44 NOTES...
Страница 171: ......
Страница 176: ...3215093en 3215093en 30 03 2022 Stallhofnerstra e 3 5230 Mattighofen Austria http www gasgas com...