OSSA

I just received my new OSSA explorer! first 2014 in the country! Great looking bike, lots of interesting and neat details. Once I was told how to use the 'easy start' it fires right up. Air filter is really easy to service, good access for most stuff from what I ca see. I like the under seat storage and simple key remove seat. Clutch felt great, brakes work well with lots of feel. Seems very smooth progressive power. I have ridden it much yet, so I'll tell more later. I'll have to raise the bars for the riding I'm doing with it (standing all day)- but everything else feels pretty darn good. I'll post up some reviews as I get some time on it.

As the title says, does anyone have their own mapping leads? Is so where did you get them, and does the purchase give you access to the latest maps and the update software? I enquired but there was a reluctance to sell them to non-dealers, Plus they are extremely expensive

This morning I replaced the clutch plates on my Tr280 for the new upgrade kit from Ossa. The old one was draging a lot even when the bike was at operating temperature. My dealer lent me the tool to align the spring. So I did the replacement this morning. I put oil on the plates when I put them in place, used the align tool and put everything back together. Everything went really easy. I started the bike to try it... when I shift, the bike started to roll. I put the brakes and it stalled. So I start again and let the engine warm for a while, same thing. I can't see whats wrong? Is there a specific side for the release arms?

just got a lanyard kill switch, does it matter which wire goes where ? just the wires on the new one and old one are different colours jsp

Howdy folks, long time lurker first time poster! After spending the better part of a week trying to nut out an electrical problem with my 2013 280i, I have hit a wall. I was wondering whether some kind soul might have a copy of the service manual (or more specifically the wiring diagram) they could either send me, or point me in the direction for a legit download? I have tried downloading it from http://www.ossausa.c...arts/tech-tips/ but the file is damaged, and it now appears the site is down... Most of the referenced links in other threads to the ossa canada site no longer work either. Any help would be greatly appreciated!

I leapt off a 1 foot bank and both the dog bone pivots (back suspension linkage) have exploded, collapsing the swingarm onto the exhaust pipe. When I have recovered my bike I shall photograph it...

Was at Jim Hoellerich's museum this past weekend and saw two beautiful 1980 Yellow Grippers. I would like to know how these bikes compare to similar twin shocks and how well they perform in competition. Any information is appreciated.

I made the jump from Gas Gas to Ossa about a month ago now and I have to say I am finding the new bike pretty good. One local trial here on the Isle of Man which went well then the big test was the Reeth a week later. Having an unplanned trip to Broughton to replace a selector shaft after the first day wasn't ideal but it worked perfectly for the last 2 days so i have to say a big THANK YOU to Nigel Birkett for the brilliant service he provided (He had to put down a beer). It was second to none. It hasn't missed a beat since. The Ossa is such a nice ride, the suspension, the engine, everything about it is spot on. The torque from the engine in the low rev range is super…

My Ossa 280i has always had a problem with overheating and uses normally 250ml of water every time I fill the petrol tank. Up the hill trails it would boil dry if I wasn't carrying 2-3 litres of water in my rucksack and replenishing about every 15 minutes. In the SSDT it boiled out on long road sections and blew a cylinder head and melted the pump impellers etc. rebuilt by the factory and it still boils even after they flushed and refilled the cooling system. Yes, the radiator is clean and I even blew it out with an air hose and pressure washed all the dust out.. The fan works well on the thermostat, comes on as I reach the end of the field about 200m from my house, fan…

Does anyone please know the bearing sizes or numbers for a 250cc OSSA TR77 so that I can have them to hand ready for the rebuild, Mains, bearings & seals, are both main bearings C3 type Gearbox bearings & seal Frame steering head Front & rear wheel bearings

Considering lowering the footrests on my OSSA MAR but what are the options for the brake pedal, has anyone any ideas please.

http://www.ossamotor.es/EN/tr14.php

I have a Ossa 300R. I need some advise on what is the difference between ECU pin no. 32 and 12?

Could you help identify which OSSA trials model this is please, frame number B-700~#~ engine number M-700~#~ I initially thought it to be a TR77 250cc but after a google search this model seems to start with a B-72 number designation. Also what is the correct colour, some TR77 models have a black frame & dark green tank, others an all over lighter green frame & tank. It has sloping down rear shocks, lower mounting at the rear end of the swing arm with the upper points a little way down the frame tubes. Full width hubs which as far as I know are the same as those on the MAR. Betor forks, gold anodised wheel rims, the exhaust pipe is longer than on a MAR, it …

Well, for anyone interested, I have made considerable progress. I did get my bash plate / bolt up issue solved, at least until I bash it but for now seems to be goot-n-tight and as I mentioned in my previous post, I did put som neoprene rubber between the plate and engine cases to act as a vibration damper. Now there was one other thing I did but, not going to get into that on the grounds this it my make me look pretty stupid. At any rate after the addition of the neoprene the thing runs/sounds like a Rolex! It is so quite and smooth. I have to admit that I was astonished. It had been SO LOUD and buzzy before, easily give my CZ a run racket wise. Now it just purrs. So, …

Hey guys, I WILL GET A BOOK...SOON but, in the mean time I'm trying to sort a couple of things out so I can get a little riding in. I noticed a couple of bolts missing from the rear of the bash plate on my bike which probably accounts for a lot of the noise my bike seems to make. The more I looked at it, which really wasn't very long, it "seemed" pretty apparent that the only way to get the bolts in and get nuts on them, which are under the rear of the engine, is to 1.) remove the engine, 2.) bolt/nut up the bash plat, 3.) put the engine back in....IS THAT RIGHT!? Seems like it has to be but, certainly not very convenient. It looks like with the bash plate in place, get…

Hi all, I need advice about getting shims for the crankshaft on my Gripper 350. The bike had a nasty banging sound when I got it. After opening we found the crankshaft had to much movement (left to right) and the weight has been rubbing on the clutch side cover. We suspected worn mains and I have oppend up to change them. Now having dismateld I have found that one of the shims on the crank is so badly worn that its breaking up. On one side there are 2 shims and on the other there´s just one but I think this may be orig. as they did them individualy as far as I know. Anyone got an idea where I can get replacement shims from ?

Hi All, Might be scary that I'd have to ask this but, this is my first Ossa so... Anyway, can some please tell me where the transmission oil fill location is on a '72 MAR? The drain was pretty straight forward, I think...big plug on the bottom, right? Fill location is not so evident. I understand the volume is 800cc-1000cc. Thanks in advance, Shoe

Thinking about taking the plunge, have never ridden trials only Enduro and MX. A nasty injury has made a trials bike appealing due to weight and less stress on my arms. I snapped my humerus in two early April (MX) and has surgery eight weeks ago. I should be able to start riding in August and a light weight bike that is less powerful than my SXf 250 is appealing. I want to use it more like a MTB with an engine though than rock hopping and to get onto single tracks in forrests. So, noise pollution is a consideration - compared to my SXF, how quiet is the Ossa? The Ossa appeals as it has EFI and I am not a bike tweaker, want to drop the oil and ride it without dicking …

http://www.zonetrial.net/products/tr125i-factory-2013/ Looks nice and they are supposed to be quite powerful for a 125:)