poor running / tickover G2
Posted: Fri Jun 06, 2008 8:49 pm
Hi all,
I have a G2 CSR which Im trying to ready for road use.
The old girl suffers from rough idleing even when warm,sometimes racing slightly then slowing almost to a stall. I have cleaned and checked the carb (389) as well as I can, replaced points condenser and changed the coil & HT lead (silicone one from a car)which I know isnt ideal but Im trying to eliminate things. The greatest improvement came when I replaced the Champion plug (N5C)to a NGK B6ES which certainly improved overall performance. Is this the right NGK plug???? as I read somewhere that they can clash with the top of the piston, I measured it as best I can with vernier gauge against the N5C and it seems the same length. Does the type of plug cap matter on this lightweight or not?
As you blip the throttle it seems to hesitate only slightly to pick up and omits a very very small amount of Black smoke,Once up the rev range a bit the smoke turns white again only just noticeable but still there none the less..... I think its running a bit rich as it struggles to rev freely towards the top end of its limit when tested.
I know that once its on the road I can fettle with it further but I would like to try & get it running better now (Mr impatient or what !)
Any comments most welcome
Regards
Paul M
I have a G2 CSR which Im trying to ready for road use.
The old girl suffers from rough idleing even when warm,sometimes racing slightly then slowing almost to a stall. I have cleaned and checked the carb (389) as well as I can, replaced points condenser and changed the coil & HT lead (silicone one from a car)which I know isnt ideal but Im trying to eliminate things. The greatest improvement came when I replaced the Champion plug (N5C)to a NGK B6ES which certainly improved overall performance. Is this the right NGK plug???? as I read somewhere that they can clash with the top of the piston, I measured it as best I can with vernier gauge against the N5C and it seems the same length. Does the type of plug cap matter on this lightweight or not?
As you blip the throttle it seems to hesitate only slightly to pick up and omits a very very small amount of Black smoke,Once up the rev range a bit the smoke turns white again only just noticeable but still there none the less..... I think its running a bit rich as it struggles to rev freely towards the top end of its limit when tested.
I know that once its on the road I can fettle with it further but I would like to try & get it running better now (Mr impatient or what !)
Any comments most welcome
Regards
Paul M