Post by: miedosoracing on January 06, 2011, 02:49:48 PM
(http://www.miedosoracing.com/cr250mini.jpg) (http://www.miedosoracing.com/cr250mini1.jpg)
Post by: metal_miracle on January 06, 2011, 04:13:59 PM
how about a older cr pipe on the (picture) looks like the dont go so much forward 1988-1990 stock pipe
Post by: TMKIWI on January 06, 2011, 06:24:46 PM
Post by: burn1986 on January 07, 2011, 02:18:20 PM
Post by: scotty dog on January 10, 2011, 05:15:30 AM
Post by: miedosoracing on January 10, 2011, 05:22:25 AM
Thats insane....i thought the 125 ya got was mad but this takes the cake.......whats next??
Thinking about a KTM 380 motor in a new 2011 250sx-f or 250sx frame? Figure It may be easier finding the SX-F frame due to engine failures. The 250sx, I'd guess not many just rollers around... In my opinion, a 350-400 2 stroke would be the best bike ever. 300 is alittle soft and a 500 is too much to go the fastest you can go.
Post by: opfermanmotors on January 10, 2011, 11:02:19 AM
Post by: factoryX on January 10, 2011, 11:07:19 AM
Post by: miedosoracing on January 10, 2011, 11:35:59 AM
Post by: scotty dog on January 10, 2011, 12:29:26 PM
Now that my friend WOULD be the ultimate.......why did KTM stop making them?? I wanted to buy one in 2001 instead of my 250 but they stopped in 2000, all there was was the EXC..Thats insane....i thought the 125 ya got was mad but this takes the cake.......whats next??
Thinking about a KTM 380 motor in a new 2011 250sx-f or 250sx frame? Figure It may be easier finding the SX-F frame due to engine failures. The 250sx, I'd guess not many just rollers around... In my opinion, a 350-400 2 stroke would be the best bike ever. 300 is alittle soft and a 500 is too much to go the fastest you can go.
Post by: opfermanmotors on January 10, 2011, 12:30:47 PM
(http://gaspipe.smugmug.com/Motorcycles/KTM-550-MXC/550-003/403052948_N8C4V-S.jpg)
(http://gaspipe.smugmug.com/Motorcycles/KTM-550-MXC/550-002/403052429_XpCsi-S.jpg)
Starting it:
KTM 550 start up, round two (http://www.youtube.com/watch?v=YharXbUkMZo#)
You could put a 550 motor in the frame :)
Post by: scotty dog on January 10, 2011, 12:38:01 PM
Post by: miedosoracing on January 10, 2011, 12:56:11 PM
Now that my friend WOULD be the ultimate.......why did KTM stop making them?? I wanted to buy one in 2001 instead of my 250 but they stopped in 2000, all there was was the EXC..Thats insane....i thought the 125 ya got was mad but this takes the cake.......whats next??
Thinking about a KTM 380 motor in a new 2011 250sx-f or 250sx frame? Figure It may be easier finding the SX-F frame due to engine failures. The 250sx, I'd guess not many just rollers around... In my opinion, a 350-400 2 stroke would be the best bike ever. 300 is alittle soft and a 500 is too much to go the fastest you can go.
I don't know much about KTM's to know that answer. Sorry. I'm starting to follow them because of their making of 2 strokes still. Nothing more, nothing less
Post by: metal_miracle on January 10, 2011, 03:03:33 PM
http://ktmtalk.com/index.php?showtopic=393440 (http://ktmtalk.com/index.php?showtopic=393440)
Post by: miedosoracing on January 10, 2011, 08:01:27 PM
Post by: miedosoracing on January 11, 2011, 01:25:40 PM
Update on the mini. Put the swingarm on last night. Going good.
Post by: factoryX on January 11, 2011, 05:29:00 PM
Post by: miedosoracing on January 11, 2011, 08:59:28 PM
What are you going to do for suspension?
Are you speaking of the mini? The mini is basically being set up for the parts I know need to be changed. Then, I purchase a CRF150R, swap everything except the frame, swingarm, obviously the motor. Then I have parts left over, to sell on ebay or build another if this would sell or something. The motor for the CRF150R should bring between $1200-1400. I think I can get a bike for $1900-2000, so roughly $ 700ish in the roller, $300ish in the motor I guess. So for $1,000 total invested when all said and done.
Post by: SachsGS on January 11, 2011, 09:17:35 PM
400cc two strokes are the best,love my 380 Maico. ;D
The 550 KTM is a far better motor then the 440 version, the 440 actually lacks some bottom end while the 550 is both very smooth and very fast.I'd use the 550 motor for AF conversions over the Honda anyday (the right hand final drive would complicate things).The 550 doesn't have a counter balancer but vibration isn't a problem.
Post by: miedosoracing on January 12, 2011, 04:51:34 AM
Post by: miedosoracing on January 13, 2011, 08:14:15 AM
(http://sphotos.ak.fbcdn.net/hphotos-ak-ash1/hs754.ash1/164578_1639056229758_1637367054_1465242_6813118_n.jpg)
Post by: miedosoracing on January 14, 2011, 10:22:27 AM
Post by: eprovenzano on January 14, 2011, 12:23:25 PM
Post by: miedosoracing on January 14, 2011, 01:55:39 PM
Post by: eprovenzano on January 15, 2011, 05:39:20 AM
I love the fact you are able to buy a stoker roller and or a running bike, transplant a proper engine, sell off the excess and recoop your investment. I wish I had the talent to to transfom the bikes like you... but I do not. So I just have to dream for a ride on the 150 /250 Tim The Toolman's CR250mini 8)
Post by: miedosoracing on January 15, 2011, 06:17:55 AM
So when ever I'm done with this bike and you're in Texas let me know...
Post by: miedosoracing on January 17, 2011, 12:45:00 PM
Anyways, got the radiators back today from the welder. I have to take the bottom hose up and over the motor, instead of infront of it. So I had to cut off the tubes and have them rewelded back on at a angle upward. Now, onto the final frame mounts and I will put up the final frame picks. Almost there.
Post by: MyckMcClung on January 17, 2011, 06:05:39 PM
Post by: rbigair40 on December 13, 2012, 12:32:32 AM
What's failing on the CRF150 motor?They are about as bullet proof as a xr200 no problems, that i have seen ? i put a crank in a 2007 2 yrs ago that had been modded , with 3 race yrs on a engine with only piston changes thats pretty good i would say . But that 250 engine in that chassis would be good Dune material !!
400cc two strokes are the best,love my 380 Maico.
The 550 KTM is a far better motor then the 440 version, the 440 actually lacks some bottom end while the 550 is both very smooth and very fast.I'd use the 550 motor for AF conversions over the Honda anyday (the right hand final drive would complicate things).The 550 doesn't have a counter balancer but vibration isn't a problem.
Post by: Sapper on December 14, 2012, 06:47:29 PM
Post by: bearorso on December 14, 2012, 06:48:05 PM
I wish you luck - as in, I hope you don't get hurt badly by that thing.
So many adults get hurt on Minis. Add a 250 2t, and it's even more likely. Remember the many top level riders hurt on Minis built for the 'night mini races' in the Trans AMA era? When Bevo brought out the Bultaco 250 (or was it 360cc??) engined mini, it got shut down.........
Mind you, if would be a hell of a hoot riding your little monster of a thing!
I hope you added more than just a couple of inches to the swing arm length. And, that it's a Big Wheeler.As for 360 / 380 KTMs - in KTM Talk. there are quite a few of those engine conversions, into late model chassis.
Blokes even fit 360 / 380 cranks and top ends onto latest model SX250 Engines. Makes you realize how little Really Has been done to their basic 2t module(s) over so many years. Fit an RFS crank / barrel to a late model SXF250 - not particularly likely............ Not that you'd want to.
It leaves you wondering why KTM don't do it? Oh yes, they might just cut into 350 / 450 / 500 4t sales. Rather severely. And, it's very very cheap to make an 'open class' 2t, with just a bigger piston and bore. They can even get a lot more money for that 'overbored' 250. The same concept, will probably be the case when they finally get around to releasing whatever new 2t they have, to meet coming Euro / World environmental rules
350 / 400cc +-, modern 2ts - perfect bike, I reckon.
If any of you are interested in seeing top level MXGP riders going Ratso on minis, look up in YouTube - Everts yearly charity event.
At least this one, the big blokes are on Big Wheelers.
Rui Goncalves on a a 150 - Herlings etc as well - on small wheelers.
Cairoli being a nutter on a Scooter1, an 85 /105, (think he squishes a kid when their wheels contact) Plus a brief sight of Harry Everts on his Puch, plus GP riders on 2ts, and Twinshockers. Very cool.
In the middle of the season, quite a few, give their time to this big charity event, and race each other, and Top Level Mini riders. Seeing Cairoli, Herlings, Goncalves etc going utterly balistic on 85s / 105s and CRF150s (the Honda riders) is hiliarious / amazing. Cairoli dressing up, and going nutters on a Scooter is a classic.
As for DeDycker on a Mini - well, he makes a 450 look like a Mini, so you've got to see him on a 150
Youl find a video of he and Goncalves, going at it hammer and tongs, somewhere near these vids on YouTube.