Adjusting the timing

BikerBard · Post by **BikerBard** » Mon Mar 13, 2006 4:19 pm

I'm stumped. I've got the left side cover off and when I reference my workshop manual, it shows two pickups that need to be adjusted. Those pickups are not on my bike. I'm running a Magnetti ignition. I have pics, but I haven't figured out how to post them, even with Skins instructions on the 'sticky post' so I can email them to somebody if you have any idea how to help me

DG

Post by **Skins** » Mon Mar 13, 2006 10:41 pm

i've been trying to help Donna get her bike running like it should. it seems to be making no power over about 5000 rpm. i think maybe the ignition timing needs adjusting

her Magneti ignition system seems to be quite different from my Kokusan one, and i don't know how to help her further. she's been working really hard on this on her own for months, and she really deserves a hand. if anyone can help her, please do

motiztab · Post by **motiztab** » Tue Mar 14, 2006 12:55 am

BikerBard,,

I know you said you only have one pick but have you looked at the Haynes manual? Its in the download section along with the factory one. Work both can you not get an idea as to what is needed?
Not had too pull my cover of but may do just to check.

BikerBard · Post by **BikerBard** » Tue Mar 14, 2006 1:27 am

I downloaded the haynes section and what it shows is nothing like mine. I think there's supposed to be some sort of pickups in there, but mine doesn't have them.

BikerBard · Post by **BikerBard** » Tue Mar 14, 2006 3:30 am

This is what I'm working with:

ducinthebay · Post by **ducinthebay** » Tue Mar 14, 2006 5:18 am

For some odd reason, the ignition system that ended up on the 750 Paso, and the 1990 Sport in the US, never made it into the manual. There is no way to adjust the timing on this engine. There is only one pickup, and its location can't be moved. In the picture, you can see the pickup hanging over the countershaft sprocket. What is important, is the clearance of that sensor to the flywheel. There is a steel washer, or two, under that sensor. Those are shims. Clearance is very critical. Don't loose your shims, or you may damage your pickup when it hits your flywheel.

There may be one way to change the timing, but its a pain in the butt. There are offset keys that you can install to shift the location of the flywheel to the shaft. Takes a lot time, patience, and experimentation.

Phil

Post by **Skins** » Tue Mar 14, 2006 5:40 am

thanks. so what happens when you check the timing? is it checked in the same way as with other systems? or with this system, because it cannot be adjusted, do we assume that it always stays correct, and doesn't need to be checked?

Post by **jcslocum** » Tue Mar 14, 2006 1:45 pm

You can probably check in the olld fashioned way with a timing light. Adjusting it might take a lot of experimentation. If it's a "smarter" system than the 2 pickup system then the computer does all of the work abd changing it at the pickup isn't needed. The FIM chips or Power commanders are the way to make these changes. I doubt that anyone makes a new chip or PC for this system.

BikerBard · Post by **BikerBard** » Tue Mar 14, 2006 5:24 pm

There is a steel washer, or two, under that sensor

Looks like they were lost before I got the bike. Only thing on it is a small plastic washer that fits into the groove on the case. :thumbdown:

BikerBard · Post by **BikerBard** » Wed Mar 22, 2006 3:23 am

Phil and Jon,

Thanks for the info. I got the cover back on and in the process found a blob of melted connectors. I replaced them and while I was at it replaced the spark plug wires.

I finally took her out yesterday and from the start up I knew something was different. She sounded much better and the problem with no power in higher rpm's seems to be solved. I even did the ton for the first time!

Thanks again for all y'alls help