My 1982 RM465 project...

Nice job on the 465, just looking at your brought back a bunch of memories from the early 80's.

I'm just about to get a 82 RM465 myself.
Did you get it to run ok in the end or did you have to change the pipe?.
I'm also heard that the fork isn't up to par with the floater rear suspension and i read that the Gold valve cartridge emulator from race tech could help.

The RT Emulator is the only way to go. With the Full Floater at the back it will be plush. Check RT website to see what they did with an 83 RM250 shock to get it to work.

Been doing a little cleaning and rebuilding?A little cleaning and rebuilding my @$$..................Dang that's pretty!

mmmm, love that bike! Do you fancy doing a small feature for our next Issue of Evo & Twinshock Magazine.

www.evotwinshock.com

What year did Zook go to the four speed? Is the 82 still a 5 speeder?

81 was a 5 speed model and 82 was 4 speed.

Here you have some technical info about the different 465's:
http://www.suzukicycles.org/RM-RMX-series/index.html?RM465_brochures.sh…

Fullfloater.com has an article about fixing the fuelflow to the carb.
http://www.fullfloater.com/pdfs/motocross_action_may_83.pdf

I'm a little confused. It says use an 11/16" drill bit but thats nearly 3/4" That bit won't fit in the needle valve hole. It's good info except for that. I would think about drilling out the fuel line inlet too since that will still be the restriction point.

very cool

Being from the old country i am a metric man myself.
So i had to look up how big a 11/16" drill bit is, and it's 17,4mm.
Thatsa a big drill!!
Must be something wrong there.
Or could someone else try that mod and let me know ;-)
I have to look in my old MXA magazines and see if there is a correction on that article.

I have to ask the RM465 experts here.
Would i DG silencer fit the stock pipe?

Get ready for round two! RMGSXR needs to post photos of the next piece of crap.

This may help with the jetting on RM465. There is a company up in Idaho called RK Tek that makes 2 stroke heads. A friend told me about them. So I checked them out on the Web and seen that they have a patent on a 2 stroke combustion camber. I loaded up some heads of bikes I have been working on ( Maico - RM465 - 500 - 84 RM 250 - 83 CR480 ) and drove to ID from UT to talk to them. I found out that they also ride dirt bikes and have owned some of the older bikes we ride. So looking at the heads, they said they could help with some of them. The first one they did for me was the CR480 ( But I’ve never started it ) then I ask them to help with my 84 RM 250, to get some low end out of it, after 3 heads they nailed it, this thing barks on the bottom - mid for a 82-85 RM250. Then came the Maico 450. The Maico was one that they had told me, they couldn’t help with at first. It had the old CZ - Maico - RM465 combustion camber, that is half hemi and squish band. So I tried to weld it up and see if they could recut it, with there dome. The Maico was night and day better than before and I was running the newer Maico design, that is better than the older half hemi head. Now I needed to get the RM465 - 500 done. So I hauled some RM motors up so they could check, deck height and piston dome shape, Kelsey told me that the RM465 was “ the worst head designs he has ever seen” and that he couldn’t see how it would start, or how you could jet it correct. So I tried to weld up a 465 head, but there is some Magnesium in that head, so I got a lot of porosity in the welds, Kelsey told me it won’t hurt to test it with the porosity. RK cut it so we could test it out, it is on the East Coast now for testing and I hope to hear back this week how it worked out. I hope that this new dome will help with the power and jetting of the RM465. There is photos of the heads on the Yahoo RM Full Floater Group. DG

http://autos.groups.yahoo.com/group/SuzukiRMFullFloater/

http://www.2strokeheads.com/

I got to thinking....

Would a 500cc cylinder fit the 465 cases?
Or is it just asking for troubles...

Yes. You have to grind the cases to match the 500 cylinders transfer ports etc.

I thought about doing that back in 83.

The late Bob Elliot gave me a diagram of what needed to be removed when I was going to Suzulki's Mechanics School in Brea, Jan 83. Basically just have to match the 465's cases to the 500's base gasket.

Hope this helps!

JG.


SWEET looking project bike!

Hmmm.
I have to think about that, i think i´ll start with matching and cleaning the ports.

Just found this thread looking for info about the RM 465 since one showed up on the local craigslist.
http://fortcollins.craigslist.org/mcy/2806391037.html
Might have gone to look at it except the dog decided to eat a sock and ended up needing emergency surgery. Oops, there goes the entire 2012 moto budget and then some!

Does anyone know if the clutch release arm for an '86-'95 RM250 will fit an '81-'82 RM465 clutch shaft? I'm short one for my 465 build. the later rm250 arm is available through Suzuki so if it fits the splines, I'd order one.
I don't really want to order one and find out it won't work.

Thanks, any help is appreciated.
Dave