Indian GP150 6v points system.......SORTED...

[rog60]

I know I should be ashamed to ask this butit's a long time since I had points on a Lammy:
Engine runs fine until main lights are switched on then stutters to a halt. Switching back to side lights everything runs fine again................
Weak flywheel magnets?
Lighting coils suspect?

Or possibly something completely different......................?

[firekdp]

Plug gap
Points gap
Faulty ignition coil
Poor engine to frame earth
Short in main light circuit
And I'm sure there are many others.

[fritz]

points gap?
demagnetised flywheel?

[rog60]

Thanks. Are points and plug gaps the same for Indian/Italian models or..................
Sure I've read somewhere that plug gap should be 16 thou.....

[fritz]

the recommended plug gaps are
0.020-0.024 in for early 4 pole points and electronic ignitions.
0.018-0.020 in for 6 pole points.
0.016 in for indian points models.

points gap 0.014-0.018 in.

[rog60]

Thought it was .016'' for Indian,.............thanks Fritz.

[firekdp]

Don't forget that timing on the ferrite magnet flywheel needs to more accurate than the Italian
system. The precise details for this are given in the Home Workshop Manual.

[rog60]

Funny that.......................just been checking up on very same manual.............thanks anyway.

[rog60]

Sorted................it was points.