Coffin and partin'

[Old guy]

The bike starts OK, pulls strongly but suffers from coughing fits at any large throttle openings in excess of 75mph. Easing the throttle back smoothes out the problem but it does stop the beast exceeding 100mph.

I believe that the GS had extra long jets so that it could suck up all the fuel from the float bowl, does anyone know otherwise?


Tim

 

[Ogmios]

long jets
sorry - no, i know nothing.
but i had an R80/7 that did exactly that after i adjusted the float height.... and got it wrong
cured by allowing more fuel in to the bowl before cutting off supply.

hope that helps.

 

[Kenny]

long jets
sorry - no, i know nothing.
but i had an R80/7 that did exactly that after i adjusted the float height.... and got it wrong
cured by allowing more fuel in to the bowl before cutting off supply.

hope that helps.

This sounds about spot on to me

 

[Ogmios]

This sounds about spot on to me

*Og falls of his chair in amazement - that he could possibly be of some technical use!*...

...maybe

 

[Old guy]

It feels like fuel starvation but everything is set-up exactly as the workshop manual and the carb rubbers are new as are all the O rings and gaskets/floats and needles.

Bugger, I wonder what it is?

Tim

 

[Ogmios]

*clutching at straws....!*

only things i can think of;

partially clogged fuel filters - letting in enough fuel at low speed / but not enough fuel at higher speed? (had that problem myself after water getting in there)

the vent in the filler cap - not allowing air in?

...tell ya wot - you fix mine / i'll fix yours

Good Luck with it

 

[Kenny]

*clutching at straws....!*

only things i can think of;

partially clogged fuel filters - letting in enough fuel at low speed / but not enough fuel at higher speed? (had that problem myself after water getting in there)

the vent in the filler cap - not allowing air in?

...tell ya wot - you fix mine / i'll fix yours

Good Luck with it

Jesus H !!! He is spot on again