OSSA

K scan any one

Ossa tr280i

late 2015 Explorer. Clutch worked fine. Gearbox had chewed up kickstart idle gear, so Lewisport swapped out for a good one. (Same size mainshaft bearing). Fits fine of course, but now it is like the clutch pack is too thick. (9.88mm). I have another gearbox here (not the one that came out) and I measure darn close between ‘bottom’ plate and hub/inner hub. But the ‘fingers’ do not stick out enough from the hub- so when the slave is activated it pushed in fine- until it hits the hub. Lever only moves about halfway. Ideas?

Hello. As title i really can not get on with the compression on this bike. Is there anybody with experience with other year modern Ossa bikes that found the compression on 2013 bikes unreasonable to the point of cant be a***d to try to start the bike. I believe that Ossa changed something on the later bikes or earlier ones so the compression was not so high. So if they did how can i change it to the different compression rate because how the hell are you supposed to start the bike again in the middle of a trials section with out putting your foot/ feet down. Ta

As above. These reusable clips or are they as with me doing jobs on this Ossa i have now refitted everything back together refilled fluids and have started the bike , fed up with the compression of this 2013 model , and now the two joints i had to unclip are now leaking. I had to drain the system manipulate and move pipes around and also reposition the clip a little and still they leak even left over night there are drips on the floor. Is it just my luck or are these really not reusable as i am getting fed up with things not working out with this bike. Ta

Hello here again. This spring is there a specific way of getting these things to fit. I have been trying now for an hour and all i have managed to do is end up with two fingers with plasters on as this spring has managed to cut both. Every time i try to force the spring round to get the straight part of this spring into the slot of the swing arm it just will not go in because the spring is too big to move into the round machined recess. I thought that when i force the flat part of this spring round that the spring would become smaller allowing it to fit in but it actually gets bigger??? Now this spring is new and presume that there is only one type made but i recall tha…

As above. Has any body removed or knows how this sensor is attached. I think mine is very lightly weeping and don't want to damage anything to sort this out. Thank you.

Hey mods, can delete if not allowed. As Lotus54 knows, I recently cooked my Explorer ECU through pin 3. No damage to the harness, the plug is cooked, but that can be replaced. So I'm wondering, as I hunt around for options, if anyone, anywhere, has a known working ECU (or 2) they are willing to sell. It is the 520030211 unit, but I'll take whatever ya got at this point. My only other option(s) at this point is to sell the bike for parts (not what I'd like), or to install a standalone ECU, which, if I can't find a factory unit, is the route I'll likely go down. Post in the thread or send me a message on here if ya have anything! Cheers!

The 2015 Explorer I recently got was worked on by someone that should not be allowed anywhere near one of these- heck any bike at all. Due to some issues from previous wrong assembly etc, I wanted to pull gearbox. There are very small screws with a 3mm allen. Why so small, I have no idea. They are plenty big for a much larger head. Anyway, one of them had the allen stripped by the person, another the allen wrench broken off. Fortunately, I came across this before and the fix was easy. I found some small mounted stones that I could use with my Foredom dental handpiece. I connected up a vacuum to get away as much grit as I could, and made an opening in the clutch hub…

One problem after another. The bike keeps fighting me me all the way. I noticed that the screw on the throttle body for the TPS has come loose so carefully screwed it back in but hay ho the thread has stripped so now have to rethread the plastic which has now been done. Doing this i had to remove the switch unit and have no lost the correct position so now have to get it to someone who can reset it. Looking at removing the air filter the air box is really dirty and looking down the throttle body that too is dirty with what looks like sooty deposits on the butterfly so have to clean that as well. How is the airbox removed as everything is so compact. Thank.

Hello to who ever reads this. As title above i have just fitted one of these clutches to my bike and though has any one used the 1 2 3 adjustment on these. I have just used number one and fitted the cover and before i fill up with new oil wondered about these adjustments. Having to drain the new oil and take off the cover and then have a chance of damaging the gasket for no gain is a no no ergo why i thought i would ask on here. Thank you.

2015 Explorer. I’ve seen several Explorers that had the rear fender mount areas broken- there the huge handrail is mounted. I take those off anyway, since they get in the way when getting weight wayback. So I designed some bushings that will fill the broken sections and press against good part of the fender. This allows easy firm mounting of fender without grabrail, especially if the parts are broken.

https://www.btwice.eu/en/about-us

On my original 2014 Explorer (sold a couple years ago) I broke the suspension linkage a couple of times. I bought some Titanium ones and they were great (with lube fittings). But the company no longer makes them. I suspect they didn’t sell very many at all. Since I like learning things and have been working on Fusion (3D CAD) I have been designing a new linkage. I am basing off 2015 links (larger main link) but going to change to needle bearings in the middle of the link, with lubrication passages. The other ones would be a lot more difficult to change from the bushings, but I can still put lube passages. I have 3D printed the parts so I can test fit and make…

2015 TR300i Recently purchased this bike and had a hard time starting it. Fuel pump was suspect and was the problem. After replacement the bike fired up and ran perfectly for 10 minutes - until it stopped. No spark, tried different plugs - nothing. Do these bikes have a weakness in the spark creation department ? Anything come to mind after an engine removal but ran for 10 min after install ? Not enough time with this bike to know what the go-to's are. Everything seems to be plugged in and secure. Pulled a coil off another dirt bike but still no spark. Blue/black wire to coil does show a voltage signal on a digital meter when moving the kick starter.

I think I'm the proud new owner of a 2015 TR 300i.... but it won't start sometimes. The bike came with a 9v battery. I was instructed to push the button prior to kicking. Didn't take long to realize the 9v doesn't activate the fuel pump so I put a little 12v in. Pump runs and logs 21 psi - max. Just kicking the bike I can get to 21 psi after 3 kicks. Right..... what's the pressure with the engine running ? Don't know - the barb off the fuel injector housing broke while I was carefully trying to disconnect the fuel line to check pressure. Two questions... Anyone know where I can get the replacement housing with the barb and 2). Has anyone defined a minimum amount o…

I am working on a 2012 Explorer in quite nice condition. The fuel injector is not working. I tested with battery power directly, it works great then down to about 6Vdc. Fuel pressure 50psi. When I run the injector test in the diagnostics, I can just hear injector click, but it does not open to squirt fuel. I tested voltage on with injector in place, doesn’t even move the meter. 9Vdc without injector. I suspect bad earth in the loom. I do not have a diagram for the early bikes (these have a battery from new). Ideas?

I have a 1974 MAR 250 with standard Motoplat stator (red. No battery) How do I wire the lights? I have Red, Green, White, Blue, and black wires. Sid

Hello everyone It's been a while since I've posted and in fact I've relapsed!!! I bought back an Ossa , I was in love with it!! and from late 2012 so a 2013 even though it has the ECU marked still with 11 final. I'm writing because I have a problem, when the bike is nice and warm it shuts off on me, like it's running out of gas, it revs up as I ask and then drops goes up and then drops all the time. I don't know what to look at. Unfortunately I had sold everything kscan harnesses etc.... I can't tell if it stops getting spark or stops getting gasoline for a few moments. Thanks Translated with DeepL.com (free version)

My ossa runs fine on trial and enduro sections but overheats on any short road sections ? Fan seems to be working and head seems ok ? Any ideas ?