Author Topic: 1989 ktm 500 mx timing (Read 3896 times)

holeshot buddy · « **on:** September 16, 2013, 08:47:55 pm »

anyone know how many mm bftdc on the big beasty

Lozza · « **Reply #1 on:** September 16, 2013, 08:59:05 pm »

Found lots of confliction info depending on the model of ignition but 1.45-1.55mm BTDC seemed to be common
HTH

holeshot buddy · « **Reply #2 on:** September 17, 2013, 08:01:04 pm »

ok thats what it is so thats ok have to look elsewhere has no top end from the mid range up
leaned the jetting way down and it improved a lot but still shit back to the drawing board :'(

jurado · « **Reply #3 on:** September 19, 2013, 01:24:59 am »

Proper 500cc engine timing depends on the ignition system you have:

- Standard MX ignition (Motoplat 9600 176-1): 2.2 mm BTDC
- SEM K10: 2.2 mm BTDC
- SEM K11: 1.5 mm BTDC

jurado · « **Reply #4 on:** September 19, 2013, 01:36:04 am »

I forgot to mention. When setting the timing BTDC, I would suggest you use one micrometer for proper setting. If you are just a few tenths of millimeters out of the recommended timing, it will make a difference.

holeshot buddy · « **Reply #5 on:** September 19, 2013, 10:00:09 pm »

ok its a motoplat and set at 1.5 will redo it to 2.2 and see what happens

OzVMX Forum

Author Topic: 1989 ktm 500 mx timing (Read 3896 times)

holeshot buddy

1989 ktm 500 mx timing

Lozza

Re: 1989 ktm 500 mx timing

holeshot buddy

Re: 1989 ktm 500 mx timing

jurado

Re: 1989 ktm 500 mx timing

jurado

Re: 1989 ktm 500 mx timing

holeshot buddy

Re: 1989 ktm 500 mx timing