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Kinroad XT50-5 Manual Download Page 16

16

Check-up & Adjustment of Air Valve Gap

Noise will stem from too big gap of the air valve. However if there is too small gap or even no gap at all,

closing of the valve will be hindered, which will cause burn of the valve and output drop. Therefore, the air valve gap
must be checked period ically.

The gap of the air valve should be inspected and adjusted with a cold engine by the follow ing procedures:
1.Remove the caps of the central hole and the top hole (the ignition timing observation hole)in the left crankcase

cover.

2.Remove the caps of the two air valves on the cylinder head.
3.Insert the “T” key into the central hole of the crankcase cover, jam it against the nut of the flying wheel and

then turm the flying wheel clockwise nutil the engraved “T” mark on the flying wheel alin\gns with the engraved line
on the top of the crankcase cover.Swing the rocking arm slightly.A loose rocking arm(which indicates the existence
of clearance) shows that the piston is in the upper stop position of the compressing t\stroke, where the valve can be
adjusted. A tight rocking arm means thar the piston is in the lower stop position of the compressing stroke, In this
case, continuously turn the “T” key clock wise for 360 degrees until the alignment of those engravd marks, where the
valve can be adjustd ,Afterwards, check the valve gap by inserting a feeler in between the valve adjust ing screw and
the end of the valve.

The specified air valve gap :0.05mm for the intake and exhaust valves respecively.

Brake Checking

(1) pull up the front and rear brakes respectively and check for wear of the brake shoes. If the mark “

Ƹ

” on the

brake drum cover aligns with that “

Ƹ

” on the brake cam, it means that the brake shoes are already worn to the limit

and have to be replaced.

(2) Replacement should be carried out at a designated service center and it is recommended that the parts made

by our company are used therein.

16

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Summary of Contents for XT50-5

Page 1: ...d d d d d d d d a a a a a an n n n n n n ny y y y y y y y possible hurt to by other m m m m m m m mo o o o o o ot t t t t t t torized vehicles Do not d d d d d d d dri i i i i i iv v v v v v v ve e e e e e e t t t t t t to o o o o oo o o o o o o o c c c cl l l l l l lo o o o o o ose to other r v v v ve e e e e e e eh h h h h h h hi i i i i i ic cl l les Never co o o o o o o ont t t t t t t te e e ...

Page 2: ...rive for r sake o of f p pe ersonal safety 2 Loose clothes are not suitable for motorcycle drive or as they may get caught on the operating lever kick otrest or wheel r r r r r r re e e e e es s s s s s s su u u u u u u ul l l l l l l lt t t t t t t ti i i i i i ing in danger Modific c c c c c c ca a a a a a a at t t t t tion of the vehicle e e e Caution Any una a a a a a a aut t t t t t th h h h ...

Page 3: ... x 2 2 2N N m m 62 6250 50r m min in e 1 r e 1 r ad weight 75kg Idling speed 1500r min 0r 0r f100r min 0r 0r yload 150kg Displacement of cylinder 49ml ont wheel 2 2 2 25 25 25 25 25 25 1 1 1 1 1 1 1 17 Spark plug A7TC ar wheel 2 l 2 l 2 l 2 l 2 l 2 l 2 l 2 75 17 Spark plug gap 0 0 0 0 0 0 0 0 6 6 6 6 6 6 6 6 0 0 0 0 0 0 0 8m 8m 8m 8m 8m 8m 8m 8mm eed max 4 x 4 x 4 x 4 x 4 x 4 x 4 x 45km h Gap of a...

Page 4: ...4 III PARTS SUBASSEMBLIES 4 ...

Page 5: ...5 5 ...

Page 6: ...6 6 ...

Page 7: ...he h h h h h h h ha a a a a a a an n n n n n nd d d d d d d dl l l l le of f f f f f f t t t t t t t th h h h h h h he e e e e e e e fuel cock to N position th h h h h h he e e e e e e f f f f f f f fuel circuit is through for f f f f f f f fu u u u u u u ue e e e e e e el l supply OFF Wit t t t t th h h h h h h h the handle of t t t t t t th h h h h h he e e e e e e e f f f f f f f fu u u u u u u...

Page 8: ...o o o ok k k k k k ke e e e e e e 2 Rotate e e e e e e e t t t t t t t th h h h h h h he throttle e t t t t t t tw w w w w w w wi i i i i is s s s s st t t t t t t t g g gr r ri i i i i i i g g p p p p p p p p by 1 8 8t t t t t t to 1 4turn 3 Start the e e e e e e eng g g g g g gi i i i i i in n n n n n n ne by th h h h h h he e e e e e e el l le e e e e e e ectric or t t t t t t th h h h h h h he...

Page 9: ...n n n n ON N N N N N N N p p p p p p p po o o o o o o os s s s s s si i i i i i i it t t t t t ti i i i i i i ion a a a a a a and the engine is in the neu u u u u u ut t t t t t t tr r r ral ition push t th he e button to st t t tart t t t th h h h h h he engine Lig gh ht t s sw witch h The f fr ro on nt light switch ha as s t th hre ee e p pos si it ti io on ns s g And d ƽ a wh hi it te poi int h...

Page 10: ...e e ef f f f f f f ft t t t t t t f f f f f f f f f H H H H H H H Ha a a a an n n n n n n nd d d d d dle ba a a a a a a ar r r r r r 1 Headlights dim m m m m m m mm m m m m m m me e e e e e e er r b b b b b b b button iti on H He ea ad dligh is in hig gh bea am o iti o on Head dl ligt i is s in n lo ow w b be ea am m o turning signal switch position Left p position Right p Horn but t t tt t t t t ...

Page 11: ...ded whe en n d dr ri iving t to o p prevent damaging g t th he e c cl lu utch h w wh he en n c ch ha an ng ging g t the gear r a ab brup u u tly l l NO OT TE E N N Neu ut tr ra al ge ea ar r 1 1 1 1th th gea ar r 2 2 2 nd gear 3 3rd gear 4 4th gear 5 5th gear Points for Atten n n n n n nt t t t t t t ti i i i i i i io o o o o o o on n n n n n n n d d d d d d du u u u u u ur r r r r r ri i in n n n...

Page 12: ...40 in viscosity will p maintain n n n n n a a a a a a a a long service life o o o o o o o or r r r r r r r t t t t t t t th h h h h h h he e e e e e e ine In cas s s s s s se t t t t t t t th h h h h h h ho o os s s s se e e e e e a a a ar r r re e e e e e e not availa a a ab b b b b bl l l l l l l le e e e e e e e a stitute su u u u u u u uit t t t t t t ta a a a a a a ab b b b b b b bl l l le e ...

Page 13: ...h h he e e e e e e e run n n n n n n n i i i in n n n n n n n mach h h h h h hi i i i i i i in n n n n n n ne e e e e oi i i i il l l l l l l l from oil tank 2 2 D Dis sm mo ou un nt t t th he e rel la at ted pa ar rt ts 3 W Wa as sh clean all the re el la at te ed d p pa arts 4 4 Fill i in n t the re equire ed d oil ˆThis job should not be done by untrained sons but shall be done at an authorized...

Page 14: ...t t t t th h h h h h h h Soak it in n n n n n n n c c c c c c c cl l le e e ean ma a a a a a a ac c c c c ch h h h hi in ne e e e o o o o o oi i i i il l l l squ u u u u u u ue e e e e e e ee e e e e e e ez z z z z z z ze e e e e e e e i i i i i it t t t t t t dry a a a a a a a an n n n n n n nd fit ack to pos s s s s s si iti i i i i i i io o o o o o o on n n n n n n n Recomme e e e e e e end d d...

Page 15: ...ip p c ca an n no ot t be so o m mo ov ve ed d f free el ly y turn n th he e usting g n nu ut to ensure it A After a ad dj ju ustm me ent s st tart t th he e eng gi in ne e a an nd d ch he ec ck k f fo or r free operating movenent again Repeat the ustment if necessary until it is asrequired Adjustment of Carburetor Caution The adju us s s s s s st t t ti i i i i i i ing proce e e e e e ed d d d d ...

Page 16: ... c ce e e e e en n n n n nt t t t t tr r r r r ral l l l l l l l h h hole and the top hole the ignitio on n timing ob b b b b b b bs s s s s se e e e er r r r rv v v va a at t t t ti i io o o o o o o on n n n n n n n h h h h h h hol l le in the left crankc er 2 R Re em move the capsof t the e t tw wo o air v va al lv ve es s o on n t th he cy yl li inder hea ad d 3 3 Inse er rt t t the T T ke ey y...

Page 17: ...f fill if f ess sary i in n ord de er r to m maint ta ai in n p pr ro op pe er r l le evel l i in n th he e ervior This should be the major project of your ular inspection 3 check the front brake lining for its worm th if its worn d d d d d d d de e e e e e e ep p p p p p pt t t t th h h h h h h is up to the l l l l l l l li i i i i im m m m m m m mi i i i i it t t t t t te e e e e e ed mark lace ...

Page 18: ...18 is worn 18 worn ...

Page 19: ...ar r b brake a adjustin ng g nut 2 T o m a k e a d j u s t m e n t t u r n t h e r e a r c k wise to o r re ed duce snd coun nt te er r c cl lo oc ck k w wis se e to o i inc cr rease t the f fr re ee e o p k w i s e t o r e d u c e s n d c o u n t e r c l o c k w i s e ng movem ment of the brake pedal djustment of Chain When regulation is needed Ioosen the rearaxle nut urn the chail adj j ju u u u...

Page 20: ...u u u u ur r r r r r re e e e e e e es s s s s s s s t t t t t t t to o o o o o o o the dr r r r r r r ri iv v v v v v ving chain 1 Shut off th h h h h h he e e e e e e e e e e e engi i i i i in n n n n n n ne e e e e e e 2 Add som me e machine oi i il l l l l o o o o or r r c c ch h h h h h h hai i i i i i in grease to the driving chain Atte en nt ti io on Wh he en n t the rear wheel a ax xi il l...

Page 21: ...s s üüW Wheel hub üü Exhaust pipe üüFuel tank and lower portion of cushion üüCarburetor üüHead lo o o o o o o oc c c c c c c ck k k k k k k k and ignition switch üüMet t t t te e e e e e e er r r r r r r rs s s s s s 1 Afte e e e e er r r r r p p p p p p p pr r re e e e e e e w w w w w wi i i i ip p p p p pi i i in n n n n n ng g g the vehicl l l l l l le e e e e e e e s s s s s s s sh h h h h h h...

Page 22: ... a at t t t t t t ti i i i i i ined off w w w w wh h h h h h hich is y imp m m ortan n n n n n n nt b b b b b b be e e e e e e ec cause it t t w w w w w w wi i i i i il l l l l l ll l l l l l l h h h h h h he e e e e el l l l l l lp p p p p p p p en n n n n n ns s s s s s sure that t t th h h h h h he rburetor m ma a a a a a a ain n n n n n nt t t t t t t ta a a a ains its norm m m m m m ma a a a ...

Page 23: ...k f f f f f f f fo o o o o o ol l l l l l ll l l l l l lo o o o o owe ed d d d d d d d by y y y y y y y filling g g g g g g i i i i i i i it t t t t t t wi i i it t t t t t t th h h h h h h h fresh gasol rein 3 Prior to d dr riving all l l l l l l t t t t t th h h h h h he e e e r re e eq q qui i i i i i ire q q d check up u u s must be made It is s b better to d d d d d d dr r r ri i i i i iv v v...

Page 24: ...j d d ustment lubrication and or rep placement are needed C means Cleaning is needed R means Replacement is needed A menas Adj d d ustment n n is needed L means Lub b b b br r r r r ri i i i i i i ic c c c c c c ca a a a a a a at t t t t t t ti i i i i i i io o o o o o on i i i i i is need d d d d d de ed d d d d d d d ˆ means T T T T T T T Th h h h h h h hi i i i i i is item of maintenance s s s ...

Page 25: ...rvalve gap I Airvalve gap I Enginelubricating oil R yearly One repla lacement every 3 y 300km 6 600 00km 100 000k 0km 2000 00km Lubriating oil screen R yearly C Tension of chain A A A A Ldling speed of carbureor I I I I Driving chain I L I L I L I L Baliery M y M y M y M y M y M y M y Mon on on on on on on onthty I I I I I I I I I I I I I I I I I Wear of of of of of of of ofbr br br br br br br br...

Page 26: ...26 9 ELECTRICAL DIAGRAM ...

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