Transcript
14 920151
[~L741 ]
~,I,eMansJ ADDITIONS AND CHANGES TO THE WORKSHOP MANUAL FOR V 7 SPORT· 750 S . 850 T
MAIN FEATURES
Engine Cylinder disposition Bore Stroke Displacement Compression ratio Output
Ratio:
2-cyllnder, 4-stroke .. v.. 90' mm 83 mm 78
cc 844 10,2 HP 80 SAE at 7300 rpm
VALVE GEAR
D.H.V. push rod operated . CARBURETION
2 Dell'Orto Carburettors type PHF 368 (0) rIght PHF 368 (S) left.
LUBRICATION Pressure, by gear pump. Normal lubrication pressure, 3,8 -:- 4,2 Kp/ crn 2 (controlied by relief valve), Wire gauze and cartridge oil filters. Electrically controlled oil pressure gauge.
low gear 1: 2 (2 = 14/ 28) 2nd gear 1 : 3,388 (2 = 18/ 25) 3rd gear 1 : 1,047 (2 = 21 / 22) 4th gear 1: 0,869 (2 = 23/ 20) 5th gear 1: 0,750 (2 = 28/ 21) Secondary Drive : cardan shaft (bevel gear set) ratio : 1 : 4.714 (Z = 7/ 33) Overall gear ratio (engine/ wheel) low gear 1 :11,643 2nd gear 1: 8,080 3rd gear 1 : 6,095 4th gear 1: 5,059 top gear 1 : 4,366 CYCLE
Frame: Duplex cradle, tubular structure. Suspension: Telescopic front fork incorporating sealed hydraul ic dampers. Rear swinging fork with externally adjustable springs. Wheels: in light alloy with rims WM 3/2,15 - 18" front and rear. Tyres: Front 3,50 H - 18" Rear 4,00 H - 18"
GENERATOR
(14 V - 20 A) Front on the crankshaft. IGNITION
By battery, with double contact breaker and automatic advance. Ignition data: Initial advance (fixed) 8" Automatic advance 26" Full advance 34' Contact breaker point gap mm 0,37 -:- 0,43 n. 2 spark plugs n.2 ignition coils, on the left side of frame. STARTING
Electric starter with electromagnetic ratchet control. Ring gear bolted on flywheel. Starter button (START) right on the handlebar. TRANSMISSION
Clutch : Dry type. multiplates. Lever controlled from the L/ H side of the handlebar. Primary drive: via the gearbox ratio : 1 : 1,235 (Z = 17/ 21) . Gearbox : Five speeds. Frontal engagement. constant mesh gears Cush drive incorporated. Pedal controlled from the L/ H side of the motorcycle.
or or or
100/ 90 H - 18" 110/ 90 H - 1S" 4,10V-1S"
Brak.s: Front: Hydraul ic disc brake, twin braking cylinder caliper. Hand lever controlled from the R/ H side of the handlebar. Hydraulic transmission free from rear braking system. Disc 0300 mm Braking cyl. 0 38 mm Master cyl. 0 12,7 mm Rear: Hydraulic disc brake, twin braking cylinder caliper. Pedal lever controlled from the R/ H side of the motorcycle. Disc 0242 mm Braking cyl. 0 38 mm Master cyl. 0 15,875 mm The rear brake is bound by a hydraulic transmission to a twin fro nt brake featu red and dimensioned like the hand controlled one.
Dimension. and weights Wheelbase (under load) Max. length Max. width Max. height Min . ground clearance Ory weight
m m m m m kg
1,470 2,190 0,720 1,030 0,150 198
PERFORMANCES
Max. speed, solo Fuel consumption
210 km / h It 8x 100 km 173
FUEL AND OIL CAPAcmES GROUP OR PART
QUANTIT IES
RECOMMENDATION
Fuel Tank (Reserve 3 It)
It 22 ,5
Petrol 98/ 100 NO·RM
Sump
I, 3
Agip SINT 2000 SAE 10 W/ SO
Gearbox Rear drive box (bevel set lubrication)
Front fork (p. leg) Front and rear brakes
174
0,750
Agip F. 1 Rotra MP SAE 90
1""
0,230
Agip F. 1 Rotra MP SAE 90
0,020
Ag ip Roeol ASO/ R
"
0,120
Ag ip F. , Dexron
"
Ag ip F. l Brake Fluid SAE - J 1703
ENGINE INSPECTION AND OVERHAULING CylInder hAd cowef"l .. Cylinder head• •
V.Iv.... SprInge .. Valv. guldel To take the valve guides off the cylinder heads use the proper punch (see fig. 22). The valve guides are to be replaced when the clearance between valve and valve guide is not avoided by replacing the valves only. To press the valve guides onto the cylinder heads use the proper punch (see fig . 23). Heat first the cylinder heads and lubricate the valve
guides. The valve guides pressed , ream properly the inner bores (where the valve stems slide) using a proper tool in such a way to bring the inner 13 at the exact measure and data which are given in the table hereunder (see Drwg . fig . 348). The negative clearance between valve guides and cylinder heads must be within mm 0,046 ..;- 0,075.
COUPLING DATA BETWEEN VALVE AND VALVE GUIDES (see Drwg. fig. 348) VALVE GUIOE INNER"
Inlet Outlet
8,000 ..;- 8,022
VALVE STEM"
ASS EMBLING CLEARANCE
o,osa
7,972 ..;- 7,987
0,013 -+-
7,965 ..;- 7,980
0.020 "' 0.057
Vatve ..ats
Vatv" (see Drwg. fig. 348)
The valve seats have to be reground with a proper grinder to provide a good coupling with valves. The valve sea.t· inclination angle is 45'30' ± 5.
Ensure the clearance between valve stem and valve guide is within the right limits. The inclination angle of the valve plate is 4S"3O' ± 5. The plate 0 of inlet valve is 44 mm while the plate 0 of outlet valve is 37,000 -+- 37,100 mm.
175
CYLINDERS • PISTONS • PISTON RINGS Cyllnde... (see Drwg. fIg. 349)
bottom on both transversal and longitudinal directions . In case off limits of values re-bore the cylinder considering that pistons and piston rings are available with the following oversizes:
IntpeCtton Measure the cylinder bore at the top, middle and
4/ 10 and 6/ 10.
CYLINDER '" STANDARD VALUE
4/ 10 oversize
6/10 oversize
83,000 -;- 83,018
83.400 -:- 83,418
83,600 -:- 83,618
SELECTION OF CYLINDER '" CLASS -A_
83,000 -+- 83,009
CLASS
.e.
83,009 -;- 63,018
Note : Class ",A .. cylinders must be matched with class .. A,. pistons ; the same for class «6 " cylinders and pistons. PI.tons (see. Drwgs. fig. 349-350) At the time the engine is overhauled, clean the
piston crown and the piston ring slots of all carbon deposits. Check then the clearance between cylinders and pistons relating to 0 selection. If such clearance is over the table values, it will be necessary to re-bore the cylinder considering that the piston is available with the following oversize: 4/ 10 and 6/ 10. Pistons must be balanced; a weight difference of 1,5 gr is allowed. The selection measure must be taken at 22 mm from the piston bottom. (see Drwg. fig . 349 and Selection Table) . When fitting a piston pay attention that both the piston selection mark and the wording ·SCA .. (exhaust) face the cylinder exhaust hole.
PISTON '" 121 • P.
standard value 4/ 10 oversize 6/10 oversize
••
121 d ge
= Rosa '" Pink Ros.o .. RHI /,III"""" ..
£lrown
Gillia .. Veil"", Auu"a .. Diu. ROlUlo/N6ro
~
RlId/lll.ck
Auurro/N""" '" BI ... , Bltclc Verde/Noro .. Graen/liloek
BI... eo/Ne,o ,. Whl!./Sloek
Glilia/N.", .. Vell""' I BI o<;k G.lgJa/Ne", .. CreVISI ... G.lgia / Roiao .. GreY/Rad
382
201
ELECTRIC WIRING DIAGRAM (fig. 382)
Km counter, bu lb 3W.
counter, bulb 3 W.
2
R.....
3
High bum warning IIgh!, bulb 1.2W.
"
011 pressure warn ing light, bulb 1,2 W.
5
Neutra l warning nght, bulb I,2W.
I
Parking light warn ing. bulb 1,2 W.
7
Generator charge warn ing tight, bulb 1,2 W.
•
High beam
•
Low beam
!
bulb
401~ W.
10
Righ t Ironl tum I5lgnlll, bulb 21 W.
11
l ••
12
Engine alarllng and stopping switch.
Iront lurn algnal, bulb 21 W.
13 Ughtln; swi tch. 14
Switch: lum signals, II.rUng, horn, flashing IIghl.
15 Horn (Absorpt ion a.5 A).
"
17
front brake .top Ught cu tout. Flashing "iiii'll relay.
18 Rear brake atop ligh t C\.Ilout.
"
Battery 12V-20Ah.
20
Regulator.
"
Recliner.
22
Alternator
" "
Starler molor relay.
"
Rear brake atop light
.
..
XI
It" V
20 AJ .
Starler mol or {12 V · 0,7 HPJ. lei! rea r turn algnnl, bulb 21 W• b ulb 5/21 W
Number plale and parking ligh t Right rear tum Ilgoai. bulb 21 W•
"
Flashar unit
30
011 pressure cutout.
31
Naulral posJllon culoul.
32
Termloal block with luses (HI A IUses). COLORS Lt:GfMO
33 COntact breaker.
,.
COli s.
1 1.. 0;.0 . . WhIIOl Y..... .. Gr ...
3S
Ignltlon switch (3 positions).
"'-10 "
38
Spark plugs.
37
Parking Ugh t Iront, bulb 3 W.
38
Brake fl uid leyel warn ing light (Bra ke) b"lb I,2W.
3It
Brake lIuld leyel Indicator cutout left and rear braking circulI.
N.... .. 1 1_ Goltlo .. G..., Ylola .. Ylolet
Or_
fIoSI .. "nk 110.,0 .. "-d
1,1 • . . . - .. 8J'OWn
...
~...'"~P;iL:':--"
,,
,~
382
201
KITS AVAILABLE ON REOUEST New gearbox kJt O"lng • I.ralght toothed gear ..t allowing 10 get varloua g•• rbox r.Uos. Such 8 kit, under partn 1421 00 41 Includes the paris listed hereunder (see fig. 383). FIG. N.
PARTN.
1
14210540
Main shaft (Z = 24-22-20-17)
1
1
14210541
Main shaft (Z = 24-22-19C-16C)
1
2
14212040
5th speed gear on mainshaft (Z = 25)
1
3
14211140
Transmission gear (Z = 16)
1
3
14211141
Transmission gear (Z = 17)
1
4
14215240
51h speed gear on layshaft (Z = 17)
1
5
1421 51 40
41h speed gear on layshaft (Z = 20)
1
6
14214840
3rd speed gear on layshaft (Z = 22)
1
7
14214540
2nd speed gear on layshaft (Z = 22)
1
7
14214541
1
8
14214240
8
14214241
2nd speed gear on layshaft (Z = 24C) 151 speed gear on layshaft (Z = 26) 151 speed gear on layshaft (Z = 26C)
DESCR IPTION
Q ~
1 1
p, : It Is pointea out that such a modific ation will result in the moosl w850 La Mans. being oft: WARRANT Y , TYPE APPRO· VAL (O.C3 .M.) and VEHICLE CODE. AS a consequence these motorcycles will be able lor going closed courses only.
383
203
NOTICE:
- A double mark of turn ing OR the middle cou· pi ing part, for double 1st and 2nd speed gears on mainshaft.
e.
1 The gears which are outl ined by a mark .. near the teeth number will have to be mounted in matching condition. These parts can be recognized by means of : - A round mark of turning on the toothing mid· die, for single 1st and 2nd speed gears on lay· shaft.
2 To mount the parts of this kit, a certain num· ber of manufactured vehicles require also the fitti ng of the " Cush drive sleeve .. partn . 1421 1201 wic h is identifiable through the 0 ind ica· ted in the draw ing (see fig. 384).
~
m
.., N
.,.
a
0-
.., N
384
3 This kit under partn . 142100 41 cancels and replaces the kit under partn. 1421 01 40. (Refer to the technical bulletin of Spare Parts, n. 5 Au· gust 1974). .
2 7/ 55 - ratio 4,714· partn. 17354650· to be mounted with double cardan joint 173260 50 and sleeve 12 32 n 00.
3
New bevel gear sets :
8/ 33 - ratio 4,125 • partn. 143546 40 . to be mounted with double cardan joint 143280 40 and sleeve 18 32 n 00.
1 6/ 32· ratio 5,333 • partn . 1735 46 90 • to be mounted with double card an joint 143280 40 and sleeve 1832 n 00.
4 9/ 34 - ratio 3,n8 - partn . 1835 46 50 - to be mounted with double cardan jOint 143280 40 and sleeve 183277 00.
GEARBOX TYPE .A. (see f1g . 385) Transmission gear of clutch shaft: Z/ 17 or Z/ 16.
14 214540
14 21424 0
14214840
14 2 1 5240
14 2151 40
4'
2.
22
20
2'
3'
26
,
1
I'
5'
-
I
,
14 21 0540
~
171
-
h I.!.J
.-
-"
14211141
22
17
20
2.
25
17
16 14 211140 380
204
142 120 40
-
--,
OVERALL GEAR RATIOS
With transmission gear of clutch shaft Z/ 17 partn. 14211141 . BEVEL GEAR SET
lSI.
"" .
3.0;1.
41h.
'".
6 / 32 = 5,333
10,554
8.282
6,901
5,749
5,242
7/ 33 = 4,714
9,329
7,321
6,10
5,03
4 .634
8 / 33 = 4,125
8,1 63
6.406
5.338
4,447
4,055
9/ 34 = 3 ,778
7,477
5,867
4,889
4,073
3,714
THEORETICAL SPEED BY 7.500 R.P.M. (rear tyre develompent mm 2.020)
BEVEL GEAR SET
l!t.
"".
".
'".
5th .
6/ 32
85,27
108,66
130,41
156,54
171 ,69
7/33
96,47
122,93
147,54
177,16
194,21
8/ 33
110,25
140,49
168,80
202,38
221,94
9 / 34
120,36
153,40
184,08
220,96
242,32
OVERALL GEAR RATIOS With transmission gear of clutch shaft Z/ 16 partn . 14211140 BEVEL GEAR SET
1.,.
......
".
4111.
.,.
6/ 32 = 5,333
11 ,210
8,799
7,333
6 ,106
5,573
7/ 33 = 4,714
9,909
7,778
6,482
5.398
4 .926
8/ 33 = 4,125
8,671
6,806
5,672
4,725
4,311
9/34 = 3,778
7,941
6,234
5.195
4,326
3 ,948
THEORmCAL SPEED BY 7.500 R.P.M. (rear tyre development rnm 2.020)
eevEL GEAR SET
1. t.
"" .
.,.
4th .
.,.
6/ 32
80,28
102,28
122,73
147,39
161 ,49
7/ 33
90.82
115,71
138,84
166,72
182.70
8/ 33 '
103,79
132,23
158.67
190,47
208,76
9/ 34
113,33
144,36
173,24
208,Q4
227,96
205
GEARBOX TYPE .. B • • 1. and 2nd low (see fi g. 386) Transmission gear of clutch shaft: Z / 17 or Z / 16.
142 1 4541
1421 424 1
14 214840
1421 5240
14 2 1 51 40
4'
24e 2 r'
22
20 3'
2'
1 /
-
5'
I'
142 105 4 1
.
-" l!J
,
-
--
~
r.1
-
,
22
JOe
2.
17
16C 25
14 21 20 40
16
1421114 1
14211140 3 ...
OVERALL GEAR RAnos With transmission gear of the clutch shaft Z / 17 aprtn . 1421 11 41 8EVEl GEAI'I SET
111.
"" .
.,.
• th .
...,.
6/ 32
= 5,333
11,215
8,714
6,901
5,749
5,242
7/ 33
= 4,714
9,914
7,703
6,10
5,08
4,634
8/ 33
= 4,125
8,675
6,740
5,338
4,447
4,055
9/ 34 = 3,778
7,945
6,177
4,889
4,073
3,714
THEORmCAL SPEED BY 7.500 R.P.M. (rear tyre development mm 2.020)
8EVEl GEAI'I SET
206
111.
......
....
. th .
...
.
6/ 32
80,24
103,28
130,41
156,54
171 ,69
7/ 33
90,78
116,83
147,54
177,16
194,21
8/ 33
103.74
133,53
168,60
202,38
221,94
9/ 34
113,27
145,70
184,OS
220,96
242,32
OVERALL GEAR RAlIOS
With transmission gear of clutch shaft Z/ 16 partn. 14211140.
.,..
...
.".
8E'YU. OEM SET
'"
6/ 32 = 5,333
11 ,914
9,263
7,333
6.106
5,573
7/ 33 = 4,714
10,531
8 ,188
6,482
5,398
4,926
8/ 33 = 4.125
9,215
7,165
5,672
4,725
4 ,311
9/ 34 = 3,n8
8,440
6.562
5,195
4.326
3,948
>d .
THEORmCAL SPEED BY 7.500 R.P.M. (rear tyro development mm 2.020)
BEVEL GEAR SET
111.
.,..
"
...
....
....
6/ 32
75,54
97,16
122.73
147,39
161.49
7/ 33
85,46
109,91
138,84
168,72
182,70
8/ 33
97,66
125,61
158,67
190,47
208,76
9/ 34
106,63
137,15
173,24
208,04
227,96
207
ENGINE POWERING KIT A special kit is now available to power the engine of the 850 LE MANS on racing purpose. Such a kit. under partn, 1499 97 40, includes the components listed hereaver. To complete this powering it is necessary to bore and pOlish the inlet and outlet tubes and to shim the valve springs according to the drawing herealler (see fig. 387) . PARTN ,
o.r<
14 153340
1
Cam shaft
14020840
2
Gasket
14112640
1
Right carburettor
14112641
1
Left carburettor
14115040
1
Right manifold
1
Left manifold
14120741
1
Exhaust pipes
14123041
1
Right silencer
14122941
1
Left si lencer
14123941
1
Silencer connecting tube
14115041
.
OESCAIPTION
ps: It Is pointed out tha I such II modification will (Bsul! In the model _850 Le Mana_ beIng 0": WARRANTY, TYPE APPROVAL (D.G.M.) and VEHICLE CODE. A$ It consequence these mortorcyc/u wll/ 08 SO/8 /or going cl04ed COUIS8.! only.
Inle.
OuUe.
Set 1 to 7 washers partn 14 03 73 00 between the part 13037200 and the cylinder head
Set a to 6 washers partn . 1403 73 00 between the part 13 03 72 00 and the cylinder head
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