We have tested this CDI for some time and have found the 2 switch position both work very well, one is more responsive and the other switch position gives a wider and more flexible power band which in this case is a real winner and has proven to be very popular
The HPI cdi for the Yamaha YZ85 is a 2 curve unit which you can change between the curves while riding via a handle bar switch,the unit come pre programmed with power improving igntion timing,you can purchase the programming equipment if you wish to re work the curves to suit your engine tuning,this is not normally required
The HPI cdi for the Yamaha YZ125 is a 2 curve unit which you can change between the curves while riding via a handle bar switch,the unit come pre programmed with power improving igntion timing,you can purchase the programming equipment if you wish to re work the curves to suit your engine tuning,this is not normally required
The HPI cdi for the Yamaha YZ250 is a 2 curve unit which you can change between the curves while riding via a handle bar switch,the unit come pre programmed with power improving igntion timing,you can purchase the programming equipment if you wish to re work the curves to suit your engine tuning,this is not normally required. we sell two cdi units for the yz250 one is for motocross and the other is for enduro both come with 2 curves and a handlebar switch. please choose your option in the drop down menu.
The HPI cdi for the Yamaha YZF250 is a 2 curve unit which you can change between the curves while riding via a handle bar switch,the unit come pre programmed with power improving igntion timing,you can purchase the programming equipment if you wish to re work the curves to suit your engine tuning,this is not normally required
The HPI cdi for the Yamaha YZF250wr enduro is a 2 curve unit which you can change between the curves while riding via a handle bar switch,the unit come pre programmed with power improving igntion timing,you can purchase the programming equipment if you wish to re work the curves to suit your engine tuning,this is not normally required
The HPI cdi for the ktm sx250 & exc250 is a 2 curve unit which you can change between the curves while riding via a handle bar switch,the unit come pre programmed with power improving igntion timing,you can purchase the programming equipment if you wish to re work the curves to suit your engine tuning,this is not normally required
The HPI cdi for the ktm exc200 is a 2 curve unit which you can change between the curves while riding via a handle bar switch,the unit come pre programmed with power improving igntion timing,you can purchase the programming equipment if you wish to re work the curves to suit your engine tuning,this is not normally required
The HPI cdi for the ktm SXF250 & 250 EXC-F is a 2 curve unit which you can change between the curves while riding via a handle bar switch,the unit come pre programmed with power improving igntion timing,you can purchase the programming equipment if you wish to re work the curves to suit your engine tuning,this is not normally required
The HPI cdi for the ktm SXF450 2007-2010 is a 2 curve unit which you can change between the curves while riding via a handle bar switch,the unit come pre programmed with power improving igntion timing,you can purchase the programming equipment if you wish to re work the curves to suit your engine tuning,this is not normally required
The HPI cdi for the husqvarna cr125 is a 2 curve unit which you can change between the curves while riding via a handle bar switch,the unit come pre programmed with power improving igntion timing,you can purchase the programming equipment if you wish to re work the curves to suit your engine tuning,this is not normally required
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