OSSA

Anyone have to replace the little rubber stopper for the kickstart? Any tips to give me while i install the new bit?

Hi Guys, My 2012 Tr280i Ossa shut-off while riding and did not want to start again. I’ve already check the spark plug (was dirty/black), checked the air filter (was clean) and checked that the gas pump was working and it was. Then, I replaced the spark plug … but still... doesn’t want to start. I guess the next step to test should be whether there is electricity or spark being generated?... however. the spark-plug cap is so deep that it seems pointless to put it against the frame and kick it to check it (as on a regular carb bike) + this one being a fuel injected… I don’t know whether the best thing to check is through the “Diagnostic Software” ? or is there any othe…

Got a bit of a problem with my 2012 tr280i, for the last couple Of weeks after I've ridden and washed it off, I leave it to warm Up and I've notice the breather pipe from down near the gear Lever has oil coming out of it, the last time it had its oil changed Was back end of last year when it had a spring replaced in the Gearbox at my dealers. The only thing I've done different was Last week at a trial I had to lay it down a couple of times not Totally flat and from memory I laid it down on the rear brake Side. Jsp

Hi Guru's, As I get older I am finding the effort involved starting my Ossa becoming a bit much for my knees, unless I can find a box or a bank to stand on I generally stand alongside and use my left leg and kick backwards like I did with old Bultacos... I have been considering investigating the current crop of 125's but since I really enjoy, make that love, the Ossa (once it's running) was wondering if anyone had ever shoved extra base gaskets in to reduce the compression making it easier to turn over. Note that I don't need it to start easier, it's not bad at that, but just to reduce the effort! I appreciate there will almost certainly be a loss of horsepower …

WTF! A bolt on both sides of a pivot? How the heck are ya supposed to get these out? Last thing to remove before the frame powdercoat. Grrrrr!

Changing my fork oil soon for new 5wt as per Birketts info. 160mm air gap. Is this measured with the springs in or out? My plan was strip, clean and re bush/seal the forks. Screw the bottom bolts in to seal and then fill and work the cartridge to purge air. Before the springs go in I’ll measure and set air gap to 160mm- does this sound about right?

There's not much of an indication in the user manual about the fork preload. Is it the 2 holed rings on the fork? In the book, they talk about a special tool. I suppose this is a tool that is made to be inserted in the holes of the top ring?

i have just brought a 2013 Tr280i and amg oing to give the gear oil a cheange... does everyone use the putoline Nano Trans (liquid Gold!!) or is there a cheaper alternative.. was looking at putoline GP10 75w has anyone tried this or any other alternatives that can be changed frequently and cost effectively... Thanks

Only had my bike a week but I'm wanting to drop the gear oil and was wondering what is the amount of gear oil in the TR280i and is it ok to use ATFQ or is there a recommended oil? Bike is 2011. Cheers

Never was a fan of green!

Anyone have any instructions how to maintain those Marzocchi forks on the newer Ossa TR-series? Mine's 2013 model with fairly good amount of usage, so thought about doing some maintenance on the forks. Haven't found any instructions how to open 'em Marzocchi aluminium forks, seal replacement, how much oil or any oil level marker on filling? Any info, photos or links on this would be highly apreciated! TIA, Margus

Hi My friends Ossa TR280i started to smoke real bad and was running poor when trying to accelerate. It was perfekt on idle, but as soon as the engine got some resistance it started to smoke and was misfiring. The smoke was white/greyish. New sparkplug did not make a difference. The cylinder head gasquet is ok, and the radiator coolant level is also ok. When i say smoke real bad, i mean enough to get waterbombed by a fire department helicopter. I can only think of two things, something electric, maybe with the fuel injection or perhaps the gearbox oil is entering the cylinder somehow. But the oil level seems to be ok as well. Its a 2 month old year 2012 bike. Any thou…

This is why we check things over now and then.Off to the welder guy.Check yours before the mount is destroyed.

my 2013 has started to leak oil from the output shaft... i see on the parts list there is a bush with 2 o rings behind it... im guessing if i remove the front sprocket i can then remove the bush and o rings.... but can the actual seal be removed without pulling the gearbox out? thanks

Hello, I'm a noob to the forum, having just bought an Explorer. It needs some work, nothing dramatic, just fork seals and wheel bearings... oh, and a cylinder head to replace the cracked original... all which are in-hand. I've not ridden it much yet, but already it's a bit obvious the suspension lacks refinement. What I'd really like to do is replace everything with the TR280i kit, but parts seem almost as elusive as rocking-horse poop. Is anyone breaking a TR or have a shock and forks they're willing to part with? Thanks in advance. Cheers... Paul

Anyone know the piston to cylinder wall clearance spec? The ring end gap as well.Searched everywhere and can't find it.CVTech in Quebec needs the numbers to redo the nikasil liner.

After putting a new top end on my 2011,i had it setup at my local dealer.It ran great and started with 3 kicks cold and one when warm.During the setup and for a while after i ran 140/1.Being a bit nervous about the expensive new topend,i changed to 100/1.After a while it got tougher to start when warm.When cold it would start 1st kick,but needed 3 or 4 when hot. Changed back to 130/1 and it's back to 3 when cold and 1 when hot.No idea that this technology was so sensitive. Just an fyi for others.

The rear wheel needs a new bearing.There is only a bushing and an oilseal on the other side.Anyone have this bushing out?

Does anyone know the SKF size or part number for the rear wheel sprocket side bushing on the TR280i. I'm not interesed in maching the hub to accept a bearing.The bushing is fine.

Hi, I have a 2012 TR280i bought used last year. The bike ran very good and started in the 1st or 2nd kick every time until recently. We were riding in our regular spot and after a big rev the motor died. We thought it ran out of gas but after topping it off (it did take a full tank so maybe it did run out) it would not start. It's getting spark and the fuel pump is working as it will spit out gas from the fuel line when kicked. i figure the next thing to check is the injector but it seems to be impossible to get to with our removing the tank and radiator. I say this because the ECU is wedged in between the frame and injector and there seems to be no way to get …