newmann
Posts: 1857 Joined: 4/01/2008 Location:
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9/21/2009 10:27 AM The Pro-Form pipes actually look pretty damn good compared to some of the other stuff out there (DG), and the one on my 81 YZ250 lined up a heck of a lot better than the DG I had on it. After all it is a hand built cone pipe. The brazing although cobby is more along the lines of the way pipes used to be built way back when. Cobby but rather cool.
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CamP
Posts: 2067 Joined: 8/16/2006 Location:
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9/21/2009 10:45 AM 
The Pro-Form pipes actually look pretty damn good compared to some of the other stuff out there (DG), and the one on my 81 YZ250 lined up a heck of a lot better than the DG I had on it. After all it is a hand built cone pipe. The brazing although cobby is more along the lines of the way pipes used to be built way back when. Cobby but rather cool. Yeah, everyone says the Pro-form fits well and runs great. What do you think of the Circle F and Jemco stuff?
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bultokid
Posts: 675 Joined: 8/13/2007 Location:
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9/21/2009 12:59 PM Not sure if Kevin @ CircleF does themas he told me he's swamped on the vintage stuff these days. Jemco is into the kit cars these days. You might try Rick at Vintage Iron, I've gotten his Retro Rocket pipes for my '83 CR480 ( now Joe Busbys ) and my Husky 500. Damn artwork quality stuff if you ask me and fits it right !
"Calling an illegal alien an undocumented immigrant is the same as calling a drug dealer an unlicensed pharmacist."-----motomonger'08
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newmann
Posts: 1857 Joined: 4/01/2008 Location:
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9/21/2009 1:18 PM Yeah, I've tried to get Kevin to do a few different Evo style pipes for me and he has politely declined. Doesn't seem too interested in building anything with much more than three cones in it. Not sure about Jemco, they built this pipe a couple years ago.
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mosslander
Posts: 363 Joined: 2/01/2009 Location:
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9/21/2009 1:41 PM
Well, I survived the vintage weekend. Ran a full tank of gas Saturday testing the bike. Everything worked perfectly with just a few minor adjustments. Loaded up and went racing at Oak Hill this morning. The bike worked flawlessly in practice and the track was epic. Lined up for moto 1 and got a good start right behind former national rider, Kirk Spencer, who was a bit more than I could handle on his 490. Chased Kirk around for a lap, then bike started sounding a little funny but I went ahead and ran it to the finish anyway. Got back to the pits to find that the pipe had developed a large crack. Oh well, wasn't able to run moto 2 but at least with a little welding the pipe will be almost as good as new. This vintage racing is a blast. I'm already pumped for round two in two weeks.
That's a great MX photo with you racing there
how is your legs today? |
CamP
Posts: 2067 Joined: 8/16/2006 Location:
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9/21/2009 1:52 PM
That's a great MX photo with you racing there
At my age, riding two days in a row is tough. Needless to say, I'm tired today.
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mosslander
Posts: 363 Joined: 2/01/2009 Location:
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9/21/2009 2:05 PM
That's a great MX photo with you racing there
At my age, riding two days in a row is tough. Needless to say, I'm tired today. Well it make you feel alive and that's good
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lostboy819
Posts: 500 Joined: 8/16/2006 Location:
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9/21/2009 2:29 PM
That was very common on the '82 RM 250 to crack the pipe. Is it touching the front motor mount bolts/frame? If so ,you may have to tap a little clearance dent into the pipe. The DG pipes were made with a little more clearance in that area.
Yeah, it started where the front motor mount bolt was hitting the pipe. Going to get it welded today, then add a little clearance in that area before I remount it. Someone told be the DG pipe kills the bike's over-rev. That's too bad because they look really nice. Yes the DG pipes kills top end so pick up any spare stock pipes you can find on ebay and fix them and swap them as needed.
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mosslander
Posts: 363 Joined: 2/01/2009 Location:
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9/21/2009 2:43 PM I have to make a great congratulation for your 1982 RM250Z Project topic becouse it has a very good point, it stayed alive sins may and making a good story with nice input's and descussion,info,photos,memorys etc etc, ending with a picture you riding it makes me proud to have following it,
great stuff man. |
CamP
Posts: 2067 Joined: 8/16/2006 Location:
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9/21/2009 3:04 PM Thanks mosslander, it has been a learning experience. Lots of time and money was invested but racing it Sunday made it all worth while.
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newmann
Posts: 1857 Joined: 4/01/2008 Location:
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9/21/2009 3:13 PM
Thanks mosslander, it has been a learning experience. Lots of time and money was invested but racing it Sunday made it all worth while. The neatest point to be made here though is that a 27 year old bike is currently one of the most competitive bikes in its class. Ten years from now it will still be one of the most competitive bikes in its class. Can't say that about those new $8000.00 bikes now can you? Makes all that money you spent seem trivial in that regard.
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mosslander
Posts: 363 Joined: 2/01/2009 Location:
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9/21/2009 3:18 PM
Thanks mosslander, it has been a learning experience. Lots of time and money was invested but racing it Sunday made it all worth while. You must be proud and I'm glad for it and your worth it
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mosslander
Posts: 363 Joined: 2/01/2009 Location:
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9/21/2009 3:33 PM
Thanks mosslander, it has been a learning experience. Lots of time and money was invested but racing it Sunday made it all worth while.
The neatest point to be made here though is that a 27 year old bike is currently one of the most competitive bikes in its class. Ten years from now it will still be one of the most competitive bikes in its class. Can't say that about those new $8000.00 bikes now can you? Makes all that money you spent seem trivial in that regard. Can 82 head fit 84 and 85 engines too or are they to mush different?
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CamP
Posts: 2067 Joined: 8/16/2006 Location:
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9/21/2009 3:34 PM
The neatest point to be made here though is that a 27 year old bike is currently one of the most competitive bikes in its class. Ten years from now it will still be one of the most competitive bikes in its class. Can't say that about those new $8000.00 bikes now can you? Makes all that money you spent seem trivial in that regard. You are right Joe. It is amazing that this old bike is as good as it is, especially the suspension. The full floater rear feels every bit as good, if not better than my 08 CRF450. It takes the big hit well and also sucks up the square edge chop like it isn't there. The Race Tech Emulators in the forks are probably cheating a little bit, but they are a pretty low-tech device when you look at them. They make the forks work almost as good as a modern cartridge fork. The engine is very fast once you get the rpm's up. I talked to Eric Gorr and he said it can pick up some decent low end and mid range power with a little milling and grinding so I'm sending him a spare cylinder and head that I have. I know that the engine that he did for Jim Vaughn is awesome. The weakest link is the brakes. Even with the DLS front brake, the brakes leave a lot to be desired. I've heard that brake arcing does wonders but Race Tech is the only place that I know of that does it and they very expensive. They charge almost twice as much to arc two brake shoes than Gorr does for a full port and head milling job.
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CamP
Posts: 2067 Joined: 8/16/2006 Location:
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9/21/2009 3:37 PM Edited Date/Time:
9/21/2009 3:39 PM
Can 82 head fit 84 and 85 engines too or are they to mush different? The 82 head will work on the 83-85 RM's although I'm going to have Eric rework an 83 head that I have. He says it will work well once he mills it and reworks the squish band. My goal is more midrange without reducing top end rev.
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motogeeze
Posts: 181 Joined: 4/01/2008 Location:
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9/21/2009 3:50 PM Edited Date/Time:
9/21/2009 4:22 PM Hey Cam, Check with Woody Graves at : http://www.woodysvintagegp.com/ for your brake arcing needs..he's in Fla, good guy and fair..
Your right , that Full Floater is one of the best rear suspensions ever designed, I remember how much better they were when they first came out than anything else, production costs killed the design more than anything from what I have been told. The fun of restoring and tricking out one of the old machines and then gettin to race it is just unmatched in my book....enjoy your ride! a faster bike just means you'll be shutting off sooner |
CamP
Posts: 2067 Joined: 8/16/2006 Location:
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9/21/2009 5:59 PM Thanks for the link, motogeeze.
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newmann
Posts: 1857 Joined: 4/01/2008 Location:
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9/21/2009 7:41 PM Woody is one of the good guys. Big in the Florida Vintage scene. Comes to Texas quite a bit too. Mr. Know It All once told someone who inquired about making their 84 RM250 faster to replace the cylinder and head with one from a 82 model. But, surely you should have known..... Definitely need to do something to bring the power down in the rpm range a little. The 82 model I had dropped every owner off the ass end at least once. I was the recipient of it as well as witness to two others. You definitely want to be on top of things with that bike. It got into the meat of the powerband as I was launching a very small jump and spit my ass to the ground! Unbelievably funny thinking back on it, totally off guard, my very first experience on a 250 of any sort. Just had to be that one.
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Wandell
Posts: 1087 Joined: 12/17/2008 Location:
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9/21/2009 7:47 PM Man, that brings back memories! Got anymore pics?
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CamP
Posts: 2067 Joined: 8/16/2006 Location:
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9/21/2009 7:59 PM Just this one I took of the bike in final race trim for my Shock Sox sponsor. There was another photographer at Oak Hill but I haven't seen any of his pics yet. BTW, the Shock Sox work great. Unlike the old style seal savers, these are quickly removed with velcro straps so you can take them off every time you wash the bike. I highly recommend them.
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CamP
Posts: 2067 Joined: 8/16/2006 Location:
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9/21/2009 8:09 PM
Woody is one of the good guys. Big in the Florida Vintage scene. Comes to Texas quite a bit too. Mr. Know It All once told someone who inquired about making their 84 RM250 faster to replace the cylinder and head with one from a 82 model. But, surely you should have known..... Definitely need to do something to bring the power down in the rpm range a little. The 82 model I had dropped every owner off the ass end at least once. I was the recipient of it as well as witness to two others. You definitely want to be on top of things with that bike. It got into the meat of the powerband as I was launching a very small jump and spit my ass to the ground! Unbelievably funny thinking back on it, totally off guard, my very first experience on a 250 of any sort. Just had to be that one. It's funny that Mister know it all would say use the 82 cylinder on the 84 because they are the same part. lol
This bike definitely runs like a 125 on steroids. Hopefully I won't lose any topend over-rev when Eric does his work. I love being able to rev it to the moon. I would just like to add mid-range so it pulls a little harder out of the corners without giving the clutch such a workout. |
ThePipe
Posts: 1202 Joined: 8/02/2006 Location:
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9/23/2009 11:28 AM Awesome Cam!
Are you racing it against the modern bikes! ( If I had it, I would) If you are, run an 87 CR cartridge front end. It will slide right in to the triples you have now. |
txmxer
Posts: 6626 Joined: 8/21/2006 Location:
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9/23/2009 12:05 PM vintage racing...
Vitaldrive "yahoo" |
ThePipe
Posts: 1202 Joined: 8/02/2006 Location:
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9/23/2009 2:30 PM
vintage racing... |
mosslander
Posts: 363 Joined: 2/01/2009 Location:
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9/24/2009 3:24 PM I'm really sold on the 82 rm250 and going to pick one up and restore just for the thing to spray down some youngsters on their lawnmovers
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CamP
Posts: 2067 Joined: 8/16/2006 Location:
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9/24/2009 4:57 PM Edited Date/Time:
9/24/2009 4:57 PM
Awesome Cam!
I'm going to conserve it for vintage racing only. I am considering getting a '87 CR front end with a disc to compete in the XX class. That class seems to get the largest turnout at our TVRC races.
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casedit
Posts: 7 Joined: 9/25/2009 Location:
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9/25/2009 12:20 PM Edited Date/Time:
9/25/2009 12:29 PM Nice job. that bike looks very clean. Here's my 250z effort, 2yrs in the making so far, it's been slow going as i am rebuilding every nut and bolt, with a lot of help from lee (Onthepiperacing.
http://1982rm250z.wordpress.com/ I'm also in need of these discontinued collars if anyone can help: I’m looking for a couple of the #13 collars shown here http://alpha-sports.com/smoto/1982 RM250/33.htm |
bultokid
Posts: 675 Joined: 8/13/2007 Location:
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9/25/2009 3:47 PM
Just this one I took of the bike in final race trim for my Shock Sox sponsor. There was another photographer at Oak Hill but I haven't seen any of his pics yet. BTW, the Shock Sox work great. Unlike the old style seal savers, these are quickly removed with velcro straps so you can take them off every time you wash the bike. I highly recommend them.
damn, I just got wood
"Calling an illegal alien an undocumented immigrant is the same as calling a drug dealer an unlicensed pharmacist."-----motomonger'08
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casedit
Posts: 7 Joined: 9/25/2009 Location:
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9/26/2009 8:51 AM
Nice job. that bike looks very clean. Here's my 250z effort, 2yrs in the making so far, it's been slow going as i am rebuilding every nut and bolt, with a lot of help from lee (Onthepiperacing. Nevermind, I found the original collars - good thing, wouldn't have been easy to find replacements!
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mosslander
Posts: 363 Joined: 2/01/2009 Location:
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9/29/2009 3:58 PM what the different's between 82-83 RM's and 84-85 RM's in chassis handling
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CamP wrote: bultokid, the guy that owns that RM250Z in Beaumont was racing in my class yesterday. He's a good rider and we had a short battle until he pooped out. That's a good running bike. Everyone says the Pro Form pipe is the best running pipe available, but man is it cobby looking. The brazing they use for the hangers looks really bad. Their silencers look trick though. They sound good too.