timing

Hey guys I'm a little confused about what happened to my coil a few days ago. The right side exhaust in my bike since I got it running has had some backfire, nothing serious, or nothing too worrisome, until a few days ago. I was just pulling into second leaving my house When I heard an extremely...

Hello all, As is the case with most here, I begin my first post with a love/hate situation...I'm about to set fire to my labour of love...! Ok not quite but I am very befuddled! I began this xs 650 journey 2 winters ago- a buddy of mine had the bright idea and thought we could build a couple...

Hey guys, I finally got my bike running (sorta). I am having some issues with timing, I have a 1975 with a rephase, pamco rephase ignition, Hugh's cam, and the crank was done at a local machine shop. I just re-installed the whole electronic ignition unit as per Hugh's guide. I will try to...

I just replaced my worn ATU with the Mikes part for $65 and my bike has never run this good. I knew the timing curve had a big effect on how an engine runs from tuning with megasquirt but when you only have two cylinders pumping the difference in engine character can be huge. The dead spot in...

I just bought a 1978 off an old friend this past fall and I holed the left piston which caused me to spend the entire summer breaking the bike and the motor all the way down and re-building it. I finally finished and got it all back together and got it running so I'm pretty jacked about that...

I installed the pma/pamco setup from mikes and made my timing marks as described in the instructions. The instructions say to make two marks on the side cover one is TDC, and one is at 15 degrees. The TDC mark gets transferred to the rotor. I assume that I will be timing it to the 15 degree...

I start by writing that I come from Sweden, so my English is not so good :) I bought an xs650 that I try to get started. According to the previous owner, it has been possible to run with it until the day they put it away, about 10 years ago. The only problem they had with it was that the...

At what degree should I set my timing light for my XS-650 bike? Thanks for your assistance...

So I've been checking the timing on my bike and the timing light isn't working. I know that it actually works as it was flickering for a second and I used it last week. It would only turn on at a higher idle so I set my timing that way seems fine. I do want to recheck it and I tried and the damn...

I'm working on timing the cam to the pistons. I know that both pistons move in unison but fire simultaneously so there's no question which piston should be TDC, but rather which cylinder should be in its compression stroke when the cam notch is upright. I first thought to assume it would be...

Ok I have stock 78 and installed pamco....only problem is when using timing light to time when I slightly try to apply throttle to time at full advance (3000 I think) around 2700 the rpms rev up past...its like turbo boost kicks in....in searching around the idle timing can be within two...

Hi y'all. So last night I set my cam chain tension and it did need adjustment. I then adjusted my valves and then I went to do my point gaps. When I went to set up my points I couldn't get the points to open in side the marks either side of the F. They are new points. I went to set the gap...

Sorry for the length!! Alright guys here is a little background info. I bought a 1976 xs650 back in August and totally stripped it down to the frame to rebuild it over the winter. I sent the motor with about 14,000 miles on it to a local motorsports shop near my house for a top end rebuild...

Hi all, Finished my TCI to points mod with quite possibly the help of every stinking member on this site. :-) Upon testing the timing, I have uncovered my next problem to which I don't know where to start. When I hook my timing light up to my left spark plug wire, my timing is in between...

I have a 1979 xs650 with a pma from mikesxs everything was running pretty well until i tried to reinstall the battery because i was looking for a smoother output than what the cap provides after reinstalling the battery it started running horrible with bad delay and choking long story trying a...

Hey all, I acquired an 82 Special to build into a custom. Old owner had it sitting for 2 summers unused but said it ran great before that. Carbs were gummed up when I got it; wouldn't start. I put new mufflers on it, Emgo turn out style, very free flowing compare to original; almost...

What size are the two timing plate (pamco plate) bolts? I'm trying to get some momentum going on my build, again, and keep getting derailed by missing bolts and bits. thanks, avenue.

Hello I recently bought and installed PMA kit from Hugh's, Pamco ignition and new mikuni vm 34's from 650central for my 1982 HS.... I set the marks for TDC before taking old charging system off. Bike is starting... Runs with choke on then when i take choke off it runs for a bit then shuts off...

Hey Guys, Well bike has been running great and I took it for a ride yesterday and it felt like it had no power and it was just running bad. Started checking things out and noticed the half plate on the points side was loose and slid downward. Is this for the timing? I tried reading up on the...

Allrighty, either I'm a moron, or I screwed something up, or both... I've read like three different ways to set and adjust the timing, and for some reason, can't make heads or tails of any of it. So, I'll pose this as fill-in-the-blanks sort of questions if any of you gents can assist. These...