timing issue

bobfrazier · Full Member Joined: May 29, 2008 Posts: 25

using test light i noticed that it lights up on the tdc mark then make another 360 turn and it lights up on f it does this on both sets of points is this normal or is something out of wack

Retiredgentleman · Posted: June 19, 2008, 11:26 pm Post subject: Re: timing issue

From what you describe, you must be using a dual ouput coil. The 2 spark plugs fire together every 360 degrees of crank rotation. One set of points is out of adjustment. I would do a static timing set-up. With the ignition off, put an ohmmeter on the right side points so that you can see when the points open. Adjust the large back plate until right points open in the F area . Then do the same for the left points and adjust the small half plate to open in the F area. Run engine and check with timing light.

bobfrazier · Full Member Joined: May 29, 2008 Posts: 25

so when doing static timing do i do it when only one set of points has fire right not both

5twins · Full Member Joined: Aug 05, 2006 Posts: 1616

Bob, I think you need to get a shop manual. You're asking numerous basic, simple questions. We can answer those but you should be able to figure them out for yourself. It's all in the books. Read it and weep, as they say.

jimmythetrucker · Full Member Joined: Mar 12, 2008 Posts: 1283

Let's see -- ummmm -- if I have a two-cylinder engine and one cylinder fires at TDC and the other cylinder fires at 10 degrees BEFORE TDC, is that engine going to run right? Ummm -- let me see. . . .

bobfrazier · Full Member Joined: May 29, 2008 Posts: 25

ok im a dumbass i know but the timing s*** sucks should i do anything different since i have a dual firing coil

xsjohn · Posted: June 21, 2008, 9:16 am Post subject: Re: timing issue

Are you trying to say you are using a dual lobe point cam with one set of points and one dual coil........and the timing is not coming up the same on both cylinders...........?

xsjohn

bobfrazier · Full Member Joined: May 29, 2008 Posts: 25

no dual coil and 2 points but i cant get it timed it looks right with light and wrong on static or visa-versa

weekendrider · Posted: June 21, 2008, 10:18 am Post subject: Re: timing issue

First I'm a little lost with the timing stuff also. I have to reread the manual everytime I gap the points. Sorry jimmytrucker I should know. But thats the way my gray matter works. Wouldn't the back plate have to do with the the advancing and retarding of when it sparks? So bobfrazier, maybe it's a timing issue? Each side is set seperately. The coils and gap of the points wouldn't have anything to do with it?

bobfrazier · Full Member Joined: May 29, 2008 Posts: 25

best way to do timing with points on xs650 is with my S&W model 66-3 .357 loaded six times with hydra- shocks it will never give you any more timing trouble . just kidding finally got it so i will test drive and see how she does i was getting things out when tighting screws down it can be a pain in the ass or arse depending where your from

xsjohn · Posted: June 21, 2008, 3:50 pm Post subject: Re: timing issue

300 Weatherby would be a better choice........xsjohn

bobfrazier · Full Member Joined: May 29, 2008 Posts: 25

i could use my remington model 700
.270 man i have learned alot and it all started when i put berrymans fuel treatment in gas badd badd mistake

Retiredgentleman · Posted: June 21, 2008, 4:25 pm Post subject: Re: timing issue

If you're having problems with the screws for setting points timing, change them to allen head cap screws...................much easier to work with.

jimmythetrucker · Full Member Joined: Mar 12, 2008 Posts: 1283

1) Get a dual-lobe point cam from Mikes XS.
2) Install the dual-lobe cam.
3) Hook both wires to the top set of points.
4) Gap and static-time the top set of points.
5) Back the bottom set of points AWAY from the cam so they don't rub at all. Lock them down and leave them in place so you'll always have a spare set handy.
6) Fire the bike up and strobe-time the engine.
7) Get a beer and relax. You'll never have to f*** with timing two sets of points again.
Cool

Thanks to the experts here who taught me that trick.

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