How big is the piston on a Honda S90?
The piston was marked as being 0.25mm oversized, so some work had already been done on the engine. The bore measured 50.22mm diameter and the piston 50.12mm; a difference of 0.1mm which was at the limit of permissible wear. Cylinder Bore The valve stems were measured to check for wear.
What are the missing parts of a Honda S90?
It would also need to pass the road-worthiness test at the garage. These photographs show the bike in its original condition. The missing parts included, the silencer, the drive chain, front brake cable, battery, indicators and the ignition switch. Parts which required work were the seat, the paint and the wiring.
What to do with a Honda S90 engine?
With the engine back in the bike a running test was performed although it still lacked wheels and a fuel tap, so a bottle was used to feed a small amount of petrol into the carb. The bike was difficult to start due to a weak spark and some old fuel. The spark was improved with a new set of points and with some fresh petrol it eventually started.
How big is the exhaust valve on a Honda S90?
The exhaust valve measured 5.41mmagainst a specification of 5.435mm – 5.445mm, to be replaced if under 5.415mm. The inlet valve measured 5.43mmagainst a specification of 5.455mm – 5.465mm, to be replaced if under 5.435mm.
Is the top clamp on a Honda CT90 Trail 90?
NOS (New Old Stock) Honda CT200 CT90 Trail 90 Upper Handlebar Holder Top Clamp 53131-030-010. Part has marks on the painted surface and has an old label still stuck to the top.
What kind of engine does a 1975 Honda CT90 have?
1975 HONDA CT 90 ?? OEM ENGINE PART’S ONLY !!! 2 product ratings – 1975 HONDA CT 90 ?? OEM ENGINE PART’S ONLY !!! Fits Honda 90 CT90 SL90 ST90 ATC90 CL90 ATC1 VITON Valve Seals – 1 Each – NEW!
How big is the throttle cable on a Honda CT90?
Housing is threaded to accept Honda push/pull throttle cables. Opens carbs up to 38mm. Allen key included for assembly. Pull cable thread size is M10 x 1.25mm, Push cable thread size is M12 x 1.00mm. Throttle is 6″ total in length. Heated Grip Set/2 for 7/8″ Handlebars. Warms up when the engine is running. Features a high/low/off switch.
What’s the name of the old Honda atc90?
NOS (New Old Stock) Honda ATC90 K0-1978 CT90 K1-1978 ST90 K0-K2 Points Cover 30370-128-000. Cover has light marks and blemishes.