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Old 07-20-2009, 01:39 PM   #1 (permalink)
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Transmission problem need help please

I just got her road ready a few weeks ago (1984 fxrp 5 speed).I changed all my fluids mobil 1 synthetic 20/50 in the primary, 80/90 gear lube in the trans with a little lucas oil stabilizer. Transmission seemed ok for the first week then started having problems downshifting from 5th to 4rd gear. The following week the gears seemed sharper when shifting in all gears, so I adjusted my clutch, and primary chain, and there was a little difference the gears shifted a bit smoother felt less sharp. After a few more days of riding I can barley downshift at all, but all my up shifts are fine. I can feel the spring tension on the up and downshifts, but its just not grabbing when I downshift feels like its not engaging at all, or catching like there's nothing there until it finally catches. My clutch grabs hard, and doesn't slip. It will eventually get into gear when downshifting, but it takes a lot of finagle to get it to do so. The bike has forward controls, and the inner arm from the trans where the forward control linkage hooks up has pretty good amount of inner play it seems, but I can't see down there very well, because it is located tightly in between the primary, and the transmission.
(Is this arm adjustable from the inside the top transmission cover?)
My transmission has 5 bolts on the top cover.

Also there looks to be a 9/16th nut with a allen head bolt a bit lower than it to the side or the arm coming from the trans. Possibly an adjustment of some type?
Any help would be greatly appreciated to get me back on the road.
I know I know I need the clymer manual

Last edited by Doctorshred : 07-20-2009 at 01:42 PM.
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Old 07-20-2009, 03:10 PM   #2 (permalink)
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That jam nut with the allen is the adjuster for the shifting pawl.....loosen the jam, turn allen a bit either way to adjust the shift pawl for up and down shifts....needs to be done in 3rd gear.......and yes you should get a service manual....a Factory service manual would be better than the Clymer.




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Old 08-06-2009, 02:05 AM   #3 (permalink)
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Got her fixed here's what I did....

Re-
So I opened the trans from the top cover, and found that my pawl was adjusted correctly, but it did have some noticeable wear, and tear from many years of riding. I noticed that when I shifted down the "pawl" arm that turns the cam which in turn rotates to switch the gears was not grabbing properly, and slipping off the cam grabbing points as I applied the downward pressure. At first I thought it was just a worn pawl spring, but after some examination I found that the Pawl arm was just worn beyond the point of grabbing on the downshift motion even as I applied downward pressure to it manually (by holding my finger on it) it still slipped off! The "pawl" is just a little hook type thing that is attached to forward control shift arm (in my case) that grabs the cam as you shift in either direction. (I came to find when I opened the trans cover.) (new to Harley's here, and didn't have the service manual at the time.) For those of you having similar problems, and are new to this too.....
Downshifting the front hook on the pawl pulls the cam forward, and up shifting the back hook pushes the cam backward. The assembly is held on by a c clip, and a spring to hold pressure against the cam so that when you shift it can turn the cam forward, or backward. The cam sits above the gears, and is notched to turn the shift forks while riding between small channels as the cam is turned by the 2 hooks of the pawl itself to pull, or push against the cam in order to make the shift forks change the gears. (ya kinda have to see it to understand, but I am just giving those who are new to this like me an idea, and possibly some hope before you go in blind like I did. I noticed the the hook on the pawl for my downshift was worn down further than the up shift hook, so I decided to grab my trusty dremmel grinding wheel , and give it a little shape in hopes that it would bite a little harder, and not slip when I applied the downward pressure. Long story short pulled off the c clip, and grinded the pawl bike shifts like butter. Sure I coulda spent the 19.99 for a new pawl, and 3 for the spring, but this way was more fun, and I was broke from spending the 63 bux on the factory service manual that still hadn't arrived yet . (the s.o.b came 1 day after I fixed the bike too) I couldn't wait to ride, so I said screw it, and made it happen!!! Hope this helps, and the moral to the story is if you are having shifting problems, and you have all ready properly adjusted your clutch, and primary chain peep under your trans cover, it's just a few bolts( mine had 5 allen bolts, and was very easy to remove, after I pulled off the starter, and the clutch arm.) Most of the time I was told it is just the pawl spring, and is a quik fix. Before I did this I couldnt even downshift to save my life it got so bad, and the bike had to be parked, so there's hope, and I had no idea of what a pawl was last week haha. Here's a random pawl pic I'll add for an idea. Peace people I'm goin back out riding!!!!!!

Just to let you guys know that are replacing the pawl spring it needs to be pressed out don't try to vise grip it out!!!!!! . I am a do it yourself kinda guy so I improvised with a small socket on the back side of the pawl pin, and used a medium size c clamp from Menards for 4 bux to force the pin out into the socket opening. It took a little finagling, but I got it out without torching it. Prolly not a good idea to heat it up by the way. To re install the pin put it in the freezer for at least an hour. Metal expands, and contracts with heat, and cold so freezing it will help you press it in easier. Just reverse the c clamp, and the socket, and press her in wasn't too tough.
Attached Images
File Type: jpg pawl pic.jpg (7.8 KB, 8 views)

Last edited by Doctorshred : 10-27-2009 at 05:25 PM. Reason: Update
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Old 08-09-2009, 01:52 PM   #4 (permalink)
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How about breaking that into paragraphs so it is readable?
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Old 09-06-2009, 05:05 PM   #5 (permalink)
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Wow I'm really glad I read that. My 85 FXR has been getting increasingly harder to up-shift. And beginning to get "notchy" on the 5'th to 4'th down shift too.

I'll have to get into it now and see it that's the fix.
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