have a ty80 but it has a habit of eating plugs, runs perfect otherwise

ngk b6 fitted

new coil

is it likely to be needle jetting or electrical

may change points next, any idea on gap settings etc

any help greatly appreciated

I would try the recommended plug first. And get the exact one as listed, not something similar.

NGK B6HS

hi,

has it got the original on/off switch on the throttle body or a seperate kill button on the bars?????

Either way check all electrical contacts and make sure there is a good earth!

yes b6hs is its favourite

has a seperate kill switch, I will have to look there when I get a chance

I need to check the points but am unsure of the correct gap, any ideas

I'll look up the spec when I get home tonite after work , I've got it out in the shop ...

Gotta go to work now ...

Glenn

Points gap :- 0,3 ~ 0,4 mm

Check that kill switch and connections, sounds bizarre but thats been the the cause of one of mine eating plugs.

got an orginal manual

thanks everyone, will certainly look at the kill switch but

kill switch shorting should normal just cut out the entire ignition, not reduce plug life or cause hard starting?

as long shot, wierd as it seems, check main bearing play in radial direction. As bearings get loose, the point gap changes from crank flopping around, the timing and amount of magnetic flux also changes. It also varies with speed as the crank climbs to different points in the bearing circle.

reducing the point gap is a bandaid but might help. I think normal is 012 to 016 inches? Try reducing to say 010 and see if it helps. Have done that many times as short term fix. Utlimately new bearings.

Was the autolube disconnected but not removed? that causes double oiling amount at idle and fouls plugs quickly.

general mechanical issues:

compression good? weak engines foul

exhaust plugged? overheats engine and plugs

air leaks, running lean overheats plugs.

k