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302
Joined
1/9/2017
Location
Indianapolis, IN
US
Rocky739
10/31/2018 5:56am
10/31/2018 5:56am
Edited Date/Time
9/6/2020 10:32pm
Working away on the 82 RM/RH250 Suzuki project. Been gathering parts all summer as deals pop up. Got the DLS front brake, 43mm forks and clamps, nicer tank and swingarm, 84 rear shock, titanium bolts, Hi Flite safety seat...
Most of what I need except for a pipe, thought I got a almost perfect stock pipe but it was for a 81 instead.
If anyone has a pipe lying around I'd be interested. Not really looking for NOS or anything just a good solid pipe will do. My next option will be a Pro Form pipe but the general consensus has been the stock pipe runs better and fits better...
Thanks, and I will get some pictures posted up of the progress although its hard to get excited till the frame is painted and parts are going back on!
Most of what I need except for a pipe, thought I got a almost perfect stock pipe but it was for a 81 instead.
If anyone has a pipe lying around I'd be interested. Not really looking for NOS or anything just a good solid pipe will do. My next option will be a Pro Form pipe but the general consensus has been the stock pipe runs better and fits better...
Thanks, and I will get some pictures posted up of the progress although its hard to get excited till the frame is painted and parts are going back on!
It fits well,, makes strong midrange. The cylinder is stock,the reeds are v force and PWK 38mm carb. The combination has always put me in or near front of the 1981-85 open B, and A class. I start in 2nd and when I short shift into into 3rd the bike pulls 1-2 bikes on most of the field from the strong broad midrange. Looking at the bulge in pipe,,,,I wonder now if it isn't a 1984 model instead of 82-83 pipe(?) It was on bikewhen I got it.
I have got some great deals on DG pipes from shopping amazon/ebay/ and various FB pages. I also google search the part numbers and have found discounts on them from lesser known shops clearancing their shelves.
If you replicate my parts combo with DG pipe/silencer,,,I don't think you'll be dissapointed.
The V force cage you need is from a 250 quadracer,,1987 I believe. Scored mine on discount off ebay. Was a improvement off bottom. The PWK is from 2001 CR250. It was a nice jump in smooth bottom into midrange over the stock flat slide. I really wanted the idle screw feature of the PWK. The Mikuni cost me a race when bike stalled breaking into a tight 180*corner.
I have a good stock reed cage and I'm contemplating between V force and carbon tech reeds. I know I'll end up with both... Haven't wanted to cross the carburetor bridge yet.
The Shop
I believe tightening the squishon 83 to .035" and narrowing the width of band will be the hot ticket when I talked to Eric Gorr. The v-force helped the bottom(had boysens before),,,the pwk definately helped the bottom-up. The stock 83 carb is designed with no idle screw...
I raced this bike 1 1/2 seasons in open class. Won my class both seasons and many motos and holesots. I pulled YZ490s,,Maicos,other 82-83 RM250s,,YZ465s,...many more..this bike pulls like a open bike in 3rd gear. The meat of power is pretty wide. It is not pipey.
Tom is great tuner,,no doubt.
With how my engine pulls with just these bolt on's...it could be scary with a ideal '83 head machined and porting. If for any reason you come down to Florida,,I live not far from Disney/Orlando..your welcome to ride it,,I'll meet you at a local track and you can have some fun.
2nd moto I goofed somewhere bad and lost enough time that he LAPPED me at end....How odd ...I was cheering for my bike being out front as it humiliated me at same time,,LOL... His feed back was it handled and was suspended equal to his new 450,,,was lighter,,of course not as powerful but more fun,,,and the front brake sucked and he just coasted toward the corners. Yes I have the double leading shoes....still suck. He thanked me, signed the trophy with a thanks and gave it to e as souvenier. I learned he had done well at lorettas with a 5th or 6th , so no shame!
I always come back to brakes being the biggest performance gain, and at the end of the day no drum can hang with a medicore disc.
I would definitely be interested in a stock or period aftermarket pipe and possibly other parts if you are parting it out.
Nice collection of bikes you've got there.
I never have any luck with the messenger feature on here so please email me with your asking price and shipping. I live in Indianapolis Indiana for the shipping estimate as it looks like your not very close by. rocky.l.thomas73@gmail.com
Thanks for pulling them out and getting the pictures!
Thanks
Marty
socalkiwi@hotmail.com
Pit Row
I will post pictures of the RM250 as it is going to be an extensive rebuild. He picked it up for 600 and payed what it was worth. The people who owned it did not take care of it at all. I will most likely lean on this forum for advice throughout the process. It is running pig rich right now. I pulled the stock mikuni tm38 and found that it had a crack that had been repaired with JB weld. This caused that side of the gasket surface to be slightly concave. They then bent the side of the bowl to fit which is causing that float to be sticky. I cleaned it extensively and it seems to have stock jetting. 300 main, 50 pilot. Runs even more rich now lol go figure. Wanted to check the reeds and found a rounded off bolt there on the intake boot so I didn't get any further. I assume that they need replaced judging from how the rest of the bike has been maintained. There was even 2 stripped screws on and in the carb that I was fortunate to get broken loose. The expansion chamber is not in the flange correctly and actually doesn't appear to be able to fit. It looks to be bent. I have to take it off and look. It is missing the exhaust hanger as well as the stud that goes through the top of the expansion pipe. It doesnt even have the bolts that go through the tank to secure it to the frame. It doesnt have the radiator shield plastics either. If anyone would be nice enough to take a picture of how all of that is supposed to look, I would really appreciate it. Also, if anyone has a line on some parts that would be greatly appreciated as well! My plans for the motor right now are as follows:
Pwk A/S 38mm carb & jet kit
Boyeson power reeds
NGK BREIX Iridium plug
Crankshaft bearing & seal kit
Complete gasket kit
Wossner piston kit & wristpin bearing
Eric Gorr head mod & cylinder porting.
All together, the above will run roughly $600.
Any thoughts are appreciated.
I also decided to go ahead and have Eric bore it +2mm to make it a 260cc instead of a 246.
I honestly am building this because I want to make my cousin look dumb. He is the type of guy that lies about everything and exaggerates to exponential proportions. He traded an SRT-4 for a 2011 KTM 250sxf that he claims has a stage 2 hot cam and efi remapping. Funny about that, my brothers bone stock 99 YZ125 would get him on the top end. He would only get it out when my bro was on the 125, NEVER if he was on the KX
301 (250 big bore). I just want to see the look on his face when an '83 250 2t puts that "hot cam" to shame.
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