Year: '85
Description of problem (please be as in depth as possible): i am troubled as to what needle i should be advised to purchase for the mini. the local garage (deals alot with a series engines) advised me that after installing a 3branch manifold, straight through to an rc 40 exhaust system and a k&N filter would need a new needle to suit. Curently the HS4 carb is using an AAU, and have been told that a 'richer' needle would help with the following problems i have been encountering;
dead spot when driving in low - mid revs
lack of power or a decrease as to what it used to have
I have recently installed all new electrical components that are changable, and have had the timing and fuel mixture set accordingly.
The engine will rev fairly well without too much of a struggle to climb revs when on the drive, but the problem is hightened when under load / driving. i have also found that holding the choke when driving eliminates the problem completely. i have had the mixture set between 3 - 6 % CO2 /CO to see if it helps but the problem persists.
If any a series petrol heads out there have any suggestions to what needle would suit a 998cc non a+ with a K&N with rc40 on a standard 998 HS carb plaase help shine some light onto my subject
. From what research i have gathered would a AAM needle be adaquite? ERic
Any non-standard parts that might be involved with the problem?
