SWM

My old friends riding veteran mx and enduro on international level are using the Spanish developed HFS parts for their front forks with very good results. If you look at their web (www.suspensionhfs.com/en) there are some trials kits, too. Has anyone tried them out?

Hi, Im in the process of rebuilding the wheels on my 81 TLNW 320. What I forgot to do before stripping them was to check if the rim was in the middle of the hub or offset to one side. Anybody able to help ? Thanks, Phil

About 20% into my Jumbo 350 project when I bought someone else's 85% finished project. I'll finish it first and then eventually get to the original one. Unfortunately I must have mistakenly deleted all my tear down photos and will probably be poking in occasionally with questions. I looked all over the web but can't find a pic of the skid plate rear mount. I got a new plate from Martin which would crash into the engine case unless there are spacers between the rear mount and the plate. I'm figuring about 12mm of space is needed. Is this right? Am I missing something? Any help w Thanks in advance

hey guys, been away for awhile. I need to find the jet sizes for my daughters swm tl125 phbl 22 carb? lost the pilot jet in the grass! Doh! Thanks in advance for any help/advice.

Dear all, I have just found an Aprilia TXR312 from ’88, used for competition for the first 5 years or so, then stored (or forgotten) for most of the 25 years until today. Is that Rotax engine an easy transplant to an early (1981) SWM 320? If so, is such a transplant OK and within the spirit of modern twinshock rules, like electronic ignition, modern fork internals and so on…? Or should this Aprilia better be stored for another couple of years, waiting for the hype of early air-cooled monoshock bikes …? Please, tell me what you think of all this! BTW, after draining the tank and transmission, giving it a little fresh pre-mix and transmission oil, the …

I'm refurbishing a Jumbo 350 and could use a little assistance. The seat was a real mess, repaired poorly with fiberglass and attached to the body work with bits of scrap metal and rivets. I've torn it down to what's left of the original seat and have a plan for reconstructing the base and foam. I'd like to use original style attachment but have no idea what that was. I'd much appreciate it if someone with a Jumbo could shoot me some pics of the seat and side panel attachment configuration. Here's what I have now. Thanks Wayne

Nice old Jumbo that came online here yesterday. Just thought I would share the pics and humorous wording...! Obviously not a trials rider, garage looks like it needs a tidy. Bike has nothing to do with me..! "Humorous Description" "It will start and purr great very fast! Nothing wrong besides that it sat a while so there is a stuck clutch so when you come check it out you can only start it in neutral, you can put it in gear but clutch plates are stuck so there is no slowing down until you cut off the power ha ha ha meant for trials it is lightweight and super powerful..!" Cheers Chaps Motosinge83

Hi, I post a bike/engine that I started a long time ago to collect your comments about; regards.

Pulled the clutch cover off my Rotax 240 motor (tucked into an Armstrong/Can-Am frame, so thanks for allowing me into the SWM family!) due to the clutch sticking, even after warm. The prior owner ran some pretty thick gear oil, and the motor sat many years unloved. I prefer ATF, but things are still sticky. Discovered five friction plates and six steel plates. Should there be another friction plate? I am in the process of cleaning off the gaps in the plates, as I found some good material on this procedure elsewhere. I've attached the pdf. Appreciate any and all help. Thanks! Clutch_Fix-1.pdf

Hi all, I'm trying to find some parts for my bike and seem to be struggling with a few. I need: seat straps side panel screws clutch cover plastic bungs/screws front brake stay to suit Marzocchi forks a kickstart stop (which sounds a bit odd) It's a 1980 model with the plastic tank. Anybody any ideas on where to source these, please? None available from MotoSWM at the minute, it appears. Any other suggestions would be appreciated. Thanks Neil

i have seen a few bikes with straight through exhaust mufflers and like the idea but also like the look of the original exhaust. i decided to cut one open and see what i could do. i have attached some photos that should be self explanitary but if not please ask. i fitted it to the bike this afternoon and it sounded different but still as quiet as the original setup, it also felt quite a but more perky but this was only in quite a small area so i will give it a proper test on monday once its painted and refitted.

i found this a while ago and have just got round to translating it, there are still a few headings that i couldnt figure out but it shouls be useful. https://www.dropbox.com/s/gps74puq7hs3pnl/SWM%20MODEL%20SPEC%20SHEET.xls?dl=0 hope it helps. matt

Hi, does anybody know what squish gap I should have on my Rotax 280 cc motor ? I have 1,8 mm at present but I'd like to know just exactly what the upper and lower limits are. Many thanks in advance,

Just incase anyone is interested, I have been looking around for some non organic clutch plates for my 280 cc Rotax rebuild. Found some at Barnett Engineering which should fit the bill just nicely and have had the fact confirmed by them too. You can find them here.... http://www.barnettclutches.com/can-am.html Friction plates are #301-22-10001, $12.65 each. Steels are #410-37-047001, $6.52 each. Specify quantities. Shipping is extra. You can order on-line at www.barnettclutches or call order desk at 805-642-9435, M-Th, 8am-4pm, Pacific time. Parts are good in stock, the frictions are made with our Kevlar friction material, aluminum core. Steels are tem…

Restoring a 240 Swm and the rear silencer box was full of the usual crud and also the the two baffles had come loose virtually blocking the way out for the exhaust gases. Is it best to reweld the baffles back in to their original positions or can you leave them out to let the engine breathe easier? Thanks.

Hi, has anybody out there had any experience with this type of clutch actuator ? Does it make a big difference or none at all to the lightness of the clutch ?

Hi all, Looking for the fork oil quantity for a '83 Jumbo with 38mm Betor forks. Thanks,,

Hi all, I am replacing seals and bearings in my Jumbo engine and have a few questions: - does the gear box internals stay in the clutch side or front sprocket side of motor when split? - is heat needed on the main bearings to come away from the case? Thanks in advance,,

I got tired of waiting for replies from a couple of sources for trials electronics and was surprised to see a mail in my inbox after almost no waiting at all. The guys at Powerdynamo in Berlin are of a different kind, both answering mails and getting things done (!). After sending my old parts to them, I got a nice, big box a couple of weeks later, old parts in return and a new system for my bike. I run a simple battery total loss set-up for lights when needed, so my new system is ignition only. If you are interested, the system is now listed among Powerdynamo's other products, so you don't have to bother sending anything to Berlin (if you need power for your lights …

Here they are. I wait your comments. Salu2.Chefe.