superyob 270 Posted December 11, 2023 Are there any problems with running a GT40 coil on my ZD? It still has points. Sometimes it runs rough and wants to stall. Could that be because I should have a resistor coil on it? 1 SPArKy_Dave reacted to this Share this post Link to post Share on other sites
SPArKy_Dave 9,235 Posted December 11, 2023 That sort of coil should be fine, just needs to be a GT40R coil - to suit a resistor wire/points system GT40R is a 9v coil - to suit points GT40 is a 12v coil, for electronic style ignition 3 bear351c, superyob and deankxf reacted to this Share this post Link to post Share on other sites