Rephase / 750cc big bore & boyer Bransden kit (M Power)

[wjbarber]

I'm currently considering Rephasing or a 750cc big bore kit on my broke engine. Trouble is i've also purchased a Boyer Bransden M Power kit (before realising there was a piston problem) and wondered whether it's okay to use the BB kit on a Rephased or 750cc big bore engine once i've got the job done?

Cheers
Will

 

[wannabridin]

i'm pretty sure you'd have to have a rephased ignition to go with the new cam timing. I could be wrong with the BB, but I don't think it will work on a rephased engine

 

[scabber]

The Boyer can be made to work with the 277 by moving the trigger magnets. The 650 motorcycle .com site shows how to do it.

 

[dps650rider]

The Boyer can be made to work with the 277 by moving the trigger magnets. The 650 motorcycle .com site shows how to do it.

I don't think that is going to work. The Boyer has a waste spark already and relies on timing of the pulses it receives to operate the electronic advance.

I have a rephased engine and used 2 Boyer systems one sensor mounted on each end of the cam. I already had one I installed long before I rephased and this was the best option.

 

[scabber]

I'm just passing on the information from the site. I haven't tried it. It shows how to do it that's all I can say.

 

[wjbarber]

Scabber, don't suppose you could drop in the link to that web page could you please?
I can't seem to find the page you refer to. Cheers mate!

 

[scabber]

http://www.650motorcycles.com/xs277kit.html Scroll down the page written in red click ignition modification. I just tried the link it got me to the site but came up page not found. Click on do if yourself repairs the information is #5. It will get you there.

 

[Paulrxs650]

I'm lookin at the exact same thing on my next build. How did this work out?

Found this http://www.650motorcycles.com/277ignition.html

Seems the wasted spark issue on the rephase isn't an issue - any thoughts on this please?

 

[Paulrxs650]

Just wondering if anyone has had any experience on this or any comments?

 

[scabber]

I read somewhere that Heiden tuning was doing that set up. You might contact them.

 

[Paulrxs650]

Thanks Scabber. I understand they did / do. I can do the work on the magnet rotor on the mill so happy with that.

More curious if anyone has tried this with the Boyer and what results they saw

 

[wjbarber]

Just seen your question mate. I'm not going down the rephase route - all too pricey for me.

Will.