Author Topic: Point Gap Changed  (Read 1054 times)

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Offline ZanVooden

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Point Gap Changed
« on: November 17, 2010, 08:45:36 AM »
So last week here in Wisconsin it was warm enough to ride my 750K8 in to work. I rode in on Wednesday and everything seemed fine that morning the, but the bike kinda stumbled on itself once or twice. Didnt really think too much of it. On the way home that night it happened more, even to the point where it died on me and had to coast off the side of the road to get it started again.
At this point I figured it was just crap in the carbs, and it would either get blown through to continue to act up. well I made it home just fine with a couple stumbles along the way.

The next morning I rode the bike to work and this time I took off and everything seemed fine. As soon as the bike got warm though, it started to stumble and had no power what so ever. I had plenty of gas in the tank. But the bike was really only running on two cylinders. and it ran pathetically on those two. made no power past second gear.

So last night I finally got a chance to take a look. I pulled the bowls off. clean. sprayed the bottom of the carbs with cleaner, put them back on. wouldnt start. decided to check electrical. pulled the tank off, cleaned up all the connects on the stock coil pack, nothing. pulled the plugs, fowled. clean. checked for spark, weak if there. pulled the points cover off.....

The points for 1-4 were more than a 1/16” apart, and 2-3 were pushing on each other. Checked all the screws on the plate, all were tight, really tight. Readjusted my point gap, and the damn thing kicked right off with no problem, easier than it had in the past almost.

My question is, what would cause the point gap to change like this? The bike as ran well all summer long with no problems. I do intend to change the oil as it only ran on two cylinders for awhile.

Any help is appreciated.

Offline 754

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Re: Point Gap Changed
« Reply #1 on: November 17, 2010, 08:52:12 AM »
 Wear, lack of lube...
 misalignerd rubbing block, leading to rapid wear..
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Offline ZanVooden

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Re: Point Gap Changed
« Reply #2 on: November 17, 2010, 09:52:03 AM »
Alright, that would be justifiable for the 1-4 side being opened, but the 2-3 side was closed with every rev.
and lack of lube where?

Offline TwoTired

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Re: Point Gap Changed
« Reply #3 on: November 17, 2010, 11:00:58 AM »
Honda outlines routine points adjustment every 3000 miles.  How many miles did you put on over the summer?

The points rubbing block and cam get greased at the same time.

I don't know what brand of points you have.  But, it is possible one rubbing block is softer than the other.

It is also possible that the whole points plate shifted in it's mounts via vibration, as well as the points set that is mounted on the plate.

You could also not have observed the pitting spires on the points which will give a false gap adjustment.

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Lloyd... (SOHC4 #11 Original Mail List)
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Offline ZanVooden

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Re: Point Gap Changed
« Reply #4 on: November 17, 2010, 01:22:09 PM »
I put around 4500 miles on this summer, so I can see some of that to blame.
The points where Honda points I believe.
One of things I did check was how tight the points plate was mounted and I couldn't get it to move. (I'm not saying it didn't) I will check the timing one of these up coming evenings.
I did check to make sure the points were in good shape.

Thanks for the replies. This whole scenario just has me a little concerned, I just want to make sure there isn't a possibility of a bigger problem.