I want to check my 'theory' of what is wrong with my engine before I clean the carbs (yet again)
1) Engine is quite hard to start, especially when warm
2) Idle is poor and will die after a while
3) If i pull RHS spark plg from engine while idling it cuts out completely
4) If I pull LHS spark plug from engine it carries on idling (no drop in RPM)
From this I assume I have a problem with either LHS ignition or LHS carb and the RHS cylinder is keeping the idle running
5) I checked points and spark - all seems good on both sides
6) Occasionally the RPM while idling will jump crazy fast after i blip the throttle (ie not drop down) , when this happens if I pull lhs plug the RPM drops , if i reconnect the plug RPM rises back again.
7) While the engine is revving fast if I pull RHS plug the engine keeps running (RPM drops)
On the road the bike is fine and feels as though both cylinders are working fine and the bike pulls away no problem, the problem is only at idle and has also died while running downhill.
I think I must still have a blockage in the idle circuit on the LHS carb - any suggestions or ideas ? I already checked carb balance and that seems to be right, idle screws are 3 turns out each, but they dont seem to have a big effect on smooth idle
1) Engine is quite hard to start, especially when warm
2) Idle is poor and will die after a while
3) If i pull RHS spark plg from engine while idling it cuts out completely
4) If I pull LHS spark plug from engine it carries on idling (no drop in RPM)
From this I assume I have a problem with either LHS ignition or LHS carb and the RHS cylinder is keeping the idle running
5) I checked points and spark - all seems good on both sides
6) Occasionally the RPM while idling will jump crazy fast after i blip the throttle (ie not drop down) , when this happens if I pull lhs plug the RPM drops , if i reconnect the plug RPM rises back again.
7) While the engine is revving fast if I pull RHS plug the engine keeps running (RPM drops)
On the road the bike is fine and feels as though both cylinders are working fine and the bike pulls away no problem, the problem is only at idle and has also died while running downhill.
I think I must still have a blockage in the idle circuit on the LHS carb - any suggestions or ideas ? I already checked carb balance and that seems to be right, idle screws are 3 turns out each, but they dont seem to have a big effect on smooth idle