Jockey Journal Forum banner

1 - 8 of 8 Posts

·
Registered
Joined
·
77 Posts
Discussion Starter · #1 ·
Hey all,
I know some of you have or have used the M-5 full auto mag. Maybe someone can give me some advice.
I CANNOT figure this thing out. I've installed and run many standard mags and points ignitions, but this one is killing me.
The motor is a 1980 74" Shovel. Keihin carb, solid lifters, stock can. The top end is fresh and never fired.
I set the mag up as normal. Small lobe just starting to open at advance mark on front cylinder. I get nothing except the occasional pop or backfire through the carb. Also seems when I turn the body the whole points cam moves as well.
Can someone give me a start to finish install guide?
Morris is absolutely no help!
Corey
 

·
Registered
Joined
·
887 Posts
Pull the plugs, rotate the engine by hand with your finger on the FRONT sparkplug hole. When the air pushes your finger off, your front cylinder ADVANCE mark should be comming into the timming hole. Center it and set your points to just breaking on the small lobe.

Then your on the right stroke, check your instructions from there and adjust your timming, to suit your needs, but that should get it running.

Sounds like you may have been 180 out

Sixball
 

·
Registered
Joined
·
887 Posts
Justre-read your post. Seems like you were on the right stroke (never hurts to start all over though) The M5 requires a different kicking method though. Try a slower kick and not a quick powerfull one. I've setup afew, but it's been years, I'm into the manual ones. I can't remember the whole points plate rotating though, but again, it's been awhile...

Also, the morris site has detailed install instructions if you don't have an instruction sheet handy


Sixball
 

·
Registered
Joined
·
918 Posts
set the housing up per their instructions to align the lower part of the advance coupling correctly.

Then With the mag off the bike, rotate the coupling by hand until it "snaps" on the front cyl (small lobe) then turn it back to where you would normally set the timing(the rotor won't be spring loaded now). Now put the mag on the bike and finish timing it as you normally would. If you accidentally move the rotor too far forward that it engages the coupling again, start over.
 

·
Registered
Joined
·
931 Posts
set the housing up per their instructions to align the lower part of the advance coupling correctly.

Then With the mag off the bike, rotate the coupling by hand until it "snaps" on the front cyl (small lobe) then turn it back to where you would normally set the timing(the rotor won't be spring loaded now). Now put the mag on the bike and finish timing it as you normally would. If you accidentally move the rotor too far forward that it engages the coupling again, start over.
Yep, That's how I do mine.

& The M5 prefers a slower kick Definitely.

Mine actually starts retarding the timing as the RPM's are increased (timing light). Not a whole lot, maybe 2 or 3 degrees. anyone else encounter this?
 

·
Registered
Joined
·
1 Posts
The little bit of play in the coupler causes the shell to cock a little, then pulls itself straight when it is running at a good speed. Sometimes we can see 1 degree of movement on the test bench (that's 2 motor degrees). If you wanna compensate and run the timing advanced at lower speeds, go ahead, these mags don't have ping issues.
 
1 - 8 of 8 Posts
Top