Hi,
Thanks for replying !
I just found the following values online ()
Ignition system
Spark plugNGK: B4H, BR4HS
Spark plug gap0.6-0.7 mm (0.024-0.028 in)
Spark plug cap resistance10 kΩ
Ignition coil (Transistorized magneto type)
Primary ignition coil resistance 0.9 kΩ
Secondary ignition coil resistance 6.5 kΩ
Ignition coil air gap0.3 ± 0.1 (0.012 ± 0.004)
Between my previous post and now I learned that the spar plug cap also has a resistor. So I took it off and measured again: now that table tells me the primary should be 0,9 kΩ ... Seems a lot as I measured only 0,9 Ω
The secondary is 6,15 kΩ and there spark plug cap measures 5,25 kΩ
So, let's say (but I'll do some more research) that the
0,9kΩ in the table is a typo and should be
0,9 Ω, then the values of the coil seem OK and it should be working.
The condensor I was mentioning is the cilindrical gold-coloured part that's bolted on the coil itself. So it seems that it's grounded on the two sides (bolted to the coil and the little cable goes into the compartment where in other types it connects to the contact breaker). So looks a bit weird ...
That part with the V-stripes I mentioned still is unknown ... So any advice on that is welcome too.EDITED : The part is identified : And it explains why there are no contact breaker points. As I'm taking no risk, I ordered a new one and a new ignition coil. I even ask myself why there's 2 cables coming out of the coil. In my opinion one of them should connect to the contact breaker if there would be one.
EDITED : See above ... The second wire connects to the ignition module. I think I'm going to fix the insulation on the coil (the blue goo is rather loose) , re-assemble everything and re-test. EDITED : To hell with it ... I ordered a new one :-) Problem is that I don't have spare spark plug right now, and stores are closed today. Although, I measured the spark plug, and that also seems OK concerning its resistance, but you never know ...
EDITED : It can eventually follow the coil to hell : I'll get a new one tomorrow.New coil, ignition module and spark plug and even a V-belt costs less than a hundred all together. Why would I take the risk of re-doing all this next year...To be continued when the stuff arrives ! regards,
scOOb
post edited by scOOb - 2022/01/09 13:16:30