My general rule of thumb (literally):
If it'll blow your thumb off the plug hole while kicking it over, it's good enough to run.
-
Enjoy XS650.com? Consider making a donation to help support the site.
XS650.com receives a small share of sales from some links on this page, but direct donations have a much greater impact on keeping this site going.
Musings on Boyer Bransden electronic ignition kit.
- Thread starter Its been a long time
- Start date
If it'll blow your thumb off the plug hole while kicking it over, it's good enough to run.
You guys keep beating on the threaded rod. Guess what? It does it's job. All it does is hold the rotor in place, it's not driving a gear or anything with a lot of resistance. Is it the best design maybe not but it works. The stator plate just be careful installing it. I have had to file the edges a little so it could seat better.
I've installed 5 Boyers of them over the last 5 years have not had a problem with any of them. None have had the timing move at all. No stator plate or coil problems.
A lot of times that paint dot you use to static set the timing is not in the exact right place. Usually retarded some. You may find when you check it with a timing light that it is off.
Something I do if I have to remove the stator for any reason after I have the final set on the timing is put the engine at TDC and put a mark on the rotor and a corresponding mark on the cam housing. Then when I put it back together I know where to put it.
I've installed 5 Boyers of them over the last 5 years have not had a problem with any of them. None have had the timing move at all. No stator plate or coil problems.
A lot of times that paint dot you use to static set the timing is not in the exact right place. Usually retarded some. You may find when you check it with a timing light that it is off.
Something I do if I have to remove the stator for any reason after I have the final set on the timing is put the engine at TDC and put a mark on the rotor and a corresponding mark on the cam housing. Then when I put it back together I know where to put it.
Thanks, there's many people out there who agree with you. The BB system is working just fine as far as I can tell. Big fat sparks
Could a couple of really simple changes make an OK ignition kit into a really great one? Without a doubt.
What you get for the money though, it's a decent deal.
Boyer doesn't use a key.
Great question. Indirectly I have yes. The valve timing and ignition timing marks are both correct. I appreciate your interest. One day I'll sort this bike out one way or another. Nobody said it was going to be easy
My 70yr old legs can still do it... even with an effed up aftermarket knee.
Maybe them gangly legs of your get in the way?
Not read through ..but I remember flipping the wires from the trigger
Getting no start ..
Easy to check and test
Getting no start ..
Easy to check and test
I seem to remember that too. I think the issue was the unit retarding when it should advance. Flipping the wires from the trigger plate would fix that.
Big fat sparkswhat was the end result on this one, looking to purchase the BB unit, so reading this thread with great interest
A bit fiddly to set up the static timing and the trigger assembly could be more robust. I like the PVL ignition coil provided in the kit, made in Germany and doesn't get much better. But for the money, it's a good deal. I would buy one again if I had to.
Last edited:
