Honda XR80R Service Manual

MAINTENANCE
Loosen the cam cha in adj usting bolt lock nut and
the adjus t ing bolt
Tighten the adj" sting bo ll and l oc k it w i th th e lock
nut.
TOflOUE:
Lock n"t : 12 N.m /1 .2 kgf.m , 9 IbMtl
Loosen the set plate bo lt and t"rn the punCh mark
on the chain adjuster to the "C· position.
Start the eng ine and turn the ad j uster in either
directi on until the chain noise decrease or is
elim inated.
Ti ghten the set p la te bo lt.
ENGINE IDLE SPEED
3-14
If the engine must be running to do ",ome work ,
make sure the area k; well ventilated. Never run the
engine In an enclosed ilrea. The exhilust contains
poisonous carbon monoxide gas that may cause
loss of consciousness ilnd may lead to daath. Run
the engine in an open area Or with an e xhaust
evacuation system in an enClosed area.
NOTE:
Inspect and adjust the i dle speed after all other
engine maintenance it ems have been performed
and are w i thin specifications.
The engine
must be warm for accurate idle speed
inspection
and ad justment.
---- -
Warm up Ihe engine fo r abo ut 10 minutes.
Connect a tachometer .
Turn the th r
ottle stop screw as required 10 obtain
the specified id le speed.
IDLE SP EED:
XR I OOR : 1,400 '" 100 rpm
XR80R: 1.500 '" 100 rpm
XRlOOR SHOWN:
X RBOR SHOWN:
/ (
THROTILE STOP SCR EW

Honda XR80R Specifications

General

Displacement	79cc
Compression Ratio	9.7:1
Fuel System	Carburetor
Ignition	CDI
Transmission	5-speed
Final Drive	Chain
Front Brake	Drum
Rear Brake	Drum
Front Tire	2.50-16
Rear Tire	3.00-14
Ground Clearance	9.1 inches
Engine Type	Air-cooled single-cylinder four-stroke
Bore x Stroke	47.5mm x 45mm
Rear Suspension	Single shock