HONDA SUPERDREAM CB400N CYLINDER HEAD

churchman
Full Member

Posts: 66

HONDA SUPERDREAM CB400N CYLINDER HEAD Jan 29, 2019 17:30:04 GMT

PM Quote

Post by churchman on Jan 29, 2019 17:30:04 GMT

HONDA SUPERDREAM CB400N CYLINDER HEAD

I AM WORKING ON A HONDA CB400N WHICH HAS A VALVE PROBLEM.
THE RHS PISTON IS NOT FIRING!
ONLY THE LHS PISTON IS FIRING.

I KNOW WHAT THE PROBLEM IS.
MY QUESTION IS THIS, DOES ANYONE KNOW WHERE CAN I BUY SPARE
PARTS FOR THE VALVES?

ie THE FITTINGS THAT HOLD DOWN THE VALVE SPRING.

THIS IS A COMMON PROBLEM ON SUPERDREAMS. (VALVE FAULTS)
ANY SUGGESTIONS GRATEFULLY RECEIVED.

REGARDS

grahamb
Silver Member

Posts: 1,414
mini-profile background: {"image":"","color":"19e663"}

HONDA SUPERDREAM CB400N CYLINDER HEAD Jan 29, 2019 22:14:12 GMT

PM Quote

Post by grahamb on Jan 29, 2019 22:14:12 GMT

just a thought ,

Is it the inlet or exhaust valve.

These people have some, at a price ( hopefully someone may have one)

www.cmsnl.com/honda-cb400n-superdream-1980-a-england_model15827/partslist/E04.html#.XFDO61WeTDc

buster
Northern Meets Organiser

Posts: 2,572
mini-profile background: {"image":"","color":"96a258"}

HONDA SUPERDREAM CB400N CYLINDER HEAD Jan 30, 2019 6:03:41 GMT

PM Quote

Post by buster on Jan 30, 2019 6:03:41 GMT

valve gear does seem to come up on ebay occasionally and at ok money, its chancing it a bit but I'd check then double check then treble check the collets sit perfectly. the other slight fly in the ointment is valves tend to wear to the cylinder head that they are in, if your really lucky an odd replacement might lap in but it would be a better idea all round to have valves and seats proffesionaly re-ground.

bikes i have owned..

honda xr75
suzuki b120
suzuki 80cc model,
yamaha ty250
honda c50
suzuki rl250

" You Meet The Nicest People On A Honda "

Post by churchman on Jan 29, 2019 17:30:04 GMT

Post by grahamb on Jan 29, 2019 22:14:12 GMT

Post by buster on Jan 30, 2019 6:03:41 GMT