Dogger,
Once again some GREAT clarifying info. I tried to get the Showa company to resond with some info. on the differences between these shocks - no luck . All I needed to do was ask you.
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| 1975 cr125m1 shocks http://vintagedirtbikeforums.alp-sys.com/viewtopic.php?f=21&t=2242 |
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| Author: | melmark [ Sat Apr 11, 2009 4:52 pm ] |
| Post subject: | 1975 cr125m1 shocks |
Are the OEM shocks on a 75 cr125m1 reguildable? Mine have to rebound dampening. If they are rebuildable does anyone know of a good place to get that done? Thanks Mark |
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| Author: | dogger315 [ Sat Apr 11, 2009 8:01 pm ] |
| Post subject: | Re: 1975 cr125m1 shocks |
Those shocks are rebuildable. No rebound dampening sounds like the shock fluid has leaked out. You will need to replace the seals. There are a few threads here discussing shock seals and rebuilds. I recommend you use the search function and see what turns up. As for your question about the engine paint, it is Hi-temp satin black. I like and can recommend either PJ1 or VHT. Good luck with the shocks. dogger |
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| Author: | melmark [ Sun Apr 12, 2009 4:44 am ] |
| Post subject: | Re: 1975 cr125m1 shocks |
Thanks Dogger, can most any motorcycle shop rebuild them for me? I just ordered a clymer manual for the bike hopefully it will have the details in there. Thanks for the reply Mark |
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| Author: | 2manyvintagebikes [ Sun Apr 12, 2009 10:41 am ] |
| Post subject: | Re: 1975 cr125m1 shocks |
Hi, If you look on the Honda microfiche, it says they are not rebuildable,(no parts listed), but RE-MX was selling a kit consisting of new cap and seals for the cr shocks with 12.5mm shafts. They listed as fiting the 1975 cr125 or M1, I inquired about the item but they said they were out and most likely would not restock. I believe they sold the cap because most people damaged the oem cap removing it. I worked for Honda during the time the elsinore was introduced (I'm an old guy) and checked with some techs that were around at that time and they told me they never had a tool to remove the tops, because new caps were available. I have built a tool that will remove the tops and will be maketing it in the future, I also have seals and orings for cr125/cr250 73-75 that I have being reproduced available end of the month. I will also be doing rebuilds. With all that said unless your doing a restoration, I don't believe it is worthwhile to rebuild as there are other shock out in the market place that preform far better. |
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| Author: | dogger315 [ Mon Apr 13, 2009 11:03 am ] |
| Post subject: | Re: 1975 cr125m1 shocks |
The "360" shocks on your tiddler are virtually identical to the "357" shocks that came on the 250s. The shaft size, shock body, spring seat, eyelets, seals and sleeves are interchangable. The differences between the shocks were the spring rates and the valve stack. Visually, the only way to distinguish the two, is the 125 shock had a 360 decal on the inside side of the finned shock body. The reason I bring all this up is because 2manyvintagebikes (2+16) is right, Honda doesn't show any parts breakdown to rebuild the 360 shocks but knowing what parts are interchangable allows you to rebuild them if you want. Unless you want to spend the money for aftermarket shocks, I would buy the new seals from 2+16, Install them, fill the shock body with 125 cc of Showa shock fluid and reassemble. Total time, 30 minutes a shock. Total cost $8 for the fluid and (I'm guessing $20-25) for the seals. The stock Honda shocks on your bike are pretty good when set up properly By the way, Use a clutch center holder to remove the shock body cap. The small pins fit right in the cap indentions. Tighten the holder securely with a wrench, mount the shock body in a vise with padded jaws, spray some penetrant around the cap threads and wack the clutch center holder with a soft mallet. The cap will loosen and can then be unscrewed by hand. Or you can buy the trick tool from 2+16 if you prefer, sounds like it might be easier to use. dogger |
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| Author: | 2manyvintagebikes [ Mon Apr 13, 2009 8:31 pm ] |
| Post subject: | Re: 1975 cr125m1 shocks |
Hi, Once you start something it just keeps going. Dogger is usually always right but actually the CR125 360 shock is the same as the 381 shock (1975 CR250M1). The 1973/1974 357 shock have a smaller shaft diameter and take a smaller insider diameter seal. The O rings that go on the caps to seal are the same size but the shaft seals are different according to Honda. They take different part numbers for the seals. Dogger is right that the shocks work pretty well when set up properly but since there are really no springs available and the shock construction has very little compression dampning adjustment I still think you would be better off with new shocks, re-mx wanted $80.00 for the seal kits when they had them. I will be substantially lower than this when I get the seals from the vendor. Thanks again Dogger for the paint match. It really helped. |
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| Author: | dogger315 [ Tue Apr 14, 2009 10:14 am ] |
| Post subject: | Re: 1975 cr125m1 shocks |
This is one of those yes and no's. First a little history. The 1973 and 74 CR250M KO was equipped with the "357" series Showa shocks and did indeed have 10mm shock shafts. The 1974 CR125M KO was equipped with the Showa "360" shocks and it also had 10mm shock shafts. The "360" shock shared the spring joint, spring guide, upper and lower spring seats, spring adjuster, shock body and cap, and bottoming rubber with the "357"s. The upper and lower shock spring, upper joint and valve stack were unique to the "360". In 1975, Honda equipped the CR250M1 with the "381" series Showa shocks. The differences between these and the "357" shocks were the larger diameter shock shaft, and one shock spring instead of two. The 1975 CR125M1 was equipped with the same "360" shocks that the 1974 model had, I know because I took delivery of one from the first batch my local Honda dealer recieved. Sometime during the production run, Honda upgraded the rear shocks on this bike because of numerous bent shock shafts being reported by customers, I also know about this because I was one of them (made for some bizarre handling). Later deliveries of the 1975 CR125M1 were equipped with new and improved "360s". The part number went from xxxx-360-000 to xxxx-360-700. These super "360s" had the larger shock shafts and were more inline with the "381" on the 250s as you pointed out. So to make a long story short, the CR125M1 came with two different shocks depending on when it was produced. The "smoking gun" part on the Honda fiche is the bottoming rubber. You'll notice two part numbers listed, one for the small shaft and one for the big. I agree how these discussion get a life of their own, but I think this is useful information and can help somebody pinpoint what they have. Just use a caliper and measure the diameter of the shock shaft to determine if you have regular or super. My bust for not pointing this out on my initial post Glad the paint color match worked out. dogger |
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| Author: | vintagecr [ Wed Apr 15, 2009 12:46 pm ] |
| Post subject: | Re: 1975 cr125m1 shocks |
Dogger, Once again some GREAT clarifying info. I tried to get the Showa company to resond with some info. on the differences between these shocks - no luck . All I needed to do was ask you.
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| Author: | dogger315 [ Thu Apr 16, 2009 5:34 pm ] |
| Post subject: | Re: 1975 cr125m1 shocks |
I'm glad somebody reads this stuff  Thanks vintagecr. dogger |
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