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new mbr new to me 1974 CR250M https://vintagedirtbikeforums.alp-sys.com/viewtopic.php?f=21&t=4157 |
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Author: | bolly [ Sun Sep 15, 2013 6:14 pm ] |
Post subject: | Re: new mbr new to me 1974 CR250M |
can someone help out with a link to a part number site please? ![]() |
Author: | dogger315 [ Wed Sep 18, 2013 7:41 am ] |
Post subject: | Re: new mbr new to me 1974 CR250M |
Quote: can someone help out with a link to a part number site please? ![]() Looks like a real nice find. Click on the "resource" icon at the top of the page when you first log on for a list of helpful sites. Have fun with the project. dogger |
Author: | bolly [ Thu Sep 19, 2013 3:14 pm ] |
Post subject: | Re: new mbr new to me 1974 CR250M |
thanks dogger! been busy searchin ebay lotsa these parts are hard to come by! BTW, not too much traffic on this site??? ![]() |
Author: | bolly [ Sat Sep 21, 2013 11:10 am ] |
Post subject: | Re: new mbr new to me 1974 CR250M |
so yesterday I mixed up some gas & oil and sure enough she fired up after 3 kicks! ![]() removed the clutch cover this AM expecting stuck plates and low and behold the primary drive gear bolt had backed out, rubbing on the inside of the cover, no damage to the gears!! tranny oil was clean as a whistle!! ![]() got the tank and sides off for more cleaning next up is clean the carb and try firing her up again! |
Author: | dogger315 [ Tue Sep 24, 2013 4:50 pm ] |
Post subject: | Re: new mbr new to me 1974 CR250M |
Quote: been busy searchin ebay lotsa these parts are hard to come by! You got that right. I restored one of these five years ago and the parts supply had already dried up. The good news is there is a lot of support from the aftermarket for the Green stripers. Looks like you already have all the big ticket items (tank, pipe, seat). A complete bike is a big bonus for these kinds of projects. Take your time and stick with it. Most every part you'll need eventually turns up. I spent fourteen months on mine. dogger |
Author: | bolly [ Tue Sep 24, 2013 5:11 pm ] |
Post subject: | crank brgs and seals 91202-356-003, 91203-357-03, 96102-6306 |
I already bought the alberta ebay seat cover so waitin on that so I'm wondering what's the consensus on crank bearings and seals? oem seals gotta be dried out by now and 40yr old bearings sittin on the shelf rust easily if not greased... any aftermarket suggestions? |
Author: | dogger315 [ Tue Sep 24, 2013 7:49 pm ] |
Post subject: | Re: new mbr new to me 1974 CR250M |
Quote: any aftermarket suggestions? I used Wiseco bearings and Honda seals. I don't know if they still offer it, but Wiseco marketed a complete bottom end bearing kit which was stocked with good quality Toyo (same as Honda OE), bearings. The OE seals are made of a synthetic rubber compound that holds up surprisingly well over time. Another option is to take the bearings you have to any good local bearing supplier and have them match them up. Any good quality U.S., Japanese or U.K. bearings will work. Stay away from the Chinese bearings and seal kits you see on EBay, they're crap. dogger |
Author: | mitchie [ Fri Sep 27, 2013 3:52 pm ] |
Post subject: | Re: new mbr new to me 1974 CR250M |
Suhweeeeet bike !!! |
Author: | bolly [ Mon Sep 30, 2013 5:27 pm ] |
Post subject: | Re: new mbr new to me 1974 CR250M |
thanks mitchie!! BTW, I rec'd my gastank cap and breather hose.... I can finally cross something off my list!! ![]() I need oem clutch and brake levers n perches ![]() |
Author: | bolly [ Fri Oct 04, 2013 5:20 pm ] | ||
Post subject: | Re: new mbr new to me 1974 CR250M | ||
new seat cover installed! not too bad lookin!!
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Author: | bolly [ Sat Oct 05, 2013 6:47 am ] |
Post subject: | Re: new mbr new to me 1974 CR250M |
couple better pics! ![]() Attachment: Attachment:
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Author: | bolly [ Sun Oct 06, 2013 11:11 am ] |
Post subject: | Re: new mbr new to me 1974 CR250M |
spent an hour or so with the sandpaper, what a drag!!! decided to see what my tank looks like under that damn silver paint, found remnants of the green anyways she's got a few battle scars that need to be addressed and looks like someone even used a damn grinder at one time! ![]() .... seen a youtube video of aluminum brazing and think that just might be the ticket for me! Attachment: Attachment:
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Author: | bolly [ Tue Oct 15, 2013 12:03 pm ] | ||
Post subject: | Re: new mbr new to me 1974 CR250M | ||
so I'm doin a little lookin around at serial numbers and whatever anyways I'm back at the 73/74 debate.... here's a pic of my vin plate looks like mine is March 1973? ![]() On a more serious note, I havent found a specific 1974 parts manual, I did use the K0 and M1 and the 76 online links and found 3 likey part numbers for the 73/74 oem connecting rod(dunno if I need one yet my motor's still together); 13201-357-300, 13201-KA4-700, 13201-38-300... anyone tell me which is correct for 73/74? Is they're a replacement rod other than the long rod kit on ebay? anyone know manufacturers or numbers of suitable replacements?
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Author: | dogger315 [ Tue Oct 15, 2013 8:54 pm ] |
Post subject: | Re: new mbr new to me 1974 CR250M |
Quote: nyone tell me which is correct for 73/74? From my KO (73-74) parts manual: Replacement connecting rod: 13201-357-300 Replacement side plates: 13202-357-300 Big end bearing: 91011--VMO-OC8 Crank pin: 13381-357-330 The side plates and big end bearing are still available from Honda. The rest is listed as NLA. I found a replacement rod on EBay a while back, maybe another one will show up. The good news is the crankshafts are rebuildable and you may only need a new big end bearing and the pin resized/replaced. A number of shops can do that work for you. dogger |
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