OSSA

what do you think? - just thought i'd throw in some positive balance...

Almost my only compliant about my Explorer is the rear linkage. It is probably just fine for most trials- but I ride it a lot and in a lot of mud and water. Those bushings are ok if you take the thing apart a lot- but I'd rather have something a little more robust and with zerk fittings. Anyone looked at coming up with something else? Or no issue for anyone else? Bearings and zerks would be nice. Even just zerks would be ok, since I could hit it every ride. Mark

Marc Colomer out at Ossa.

Hi, Im running an Ossa 2011 with an update clutch (internals) to 2012 specs. First of all I love the bike - it is amazing in every aspect except for the clutch engagement in my opinion. To me it seems the clutch is engaging at different positions ( a millimeter or two in or out) this occurs the first time used after heavy use ie revving and shooting off. One could say it bites slightly better after a hard use. Bike has less than 20 hrs on it - will it get better or should I consider bleeding the system, changing the clutch lever oil reservoir to a bigger size? Or just plainly used it hard to see if it beds in better? Thanks in advance, K.

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.

Thinking of buying an ossa tr 280, are there any issues with the bike. help please

I've made a new addition to my OSSA (2104 Explorer) The AAA Rechargeable batt (inside the factory Easystart) gave me some issues on a ride, so I hooked up LiPo battery and it worked great. But I didn't want to leave it in all the time, so I installed a KTM style start button. Wired it so the LiPo battery could apply power to the Diagnostics port. This runs the fuel pump for a moment and 'wakes up' the ECU. The bike starts first kick cold or hot. The LiPo battery is quite small. I'll get some pics etc. working on getting more connectors, but just used the 'dummy' plug with some appropriate pins. Mark

I have an OSSA that has come from Italy. It was sold as a 250 , which I beleve it to be, but today at a trial it was pointed out that as I have cutout on my fins, that it may be a 350?? The engine no. Matches the frame no. But the number doesn't show up on any of the lists I have seen. Any info in aging the bike etc would be appreciated. Or even recommended upgrades, mods etc...

Hi there current OSSA Owners. I'm struggling with the decision to buy a little OSSA explorer...I test drove it, loved it, but have been advised by many against buying an OSSA. I'm trying to figure out how much of the negativity (i.e chews through gear box) is still lagging from the 2011/2012 issues and if folks that own newer (2013/2014) bikes still have problems. Truth is, if OSSA was still in business, I would possible even buy it with the transmission issue, I though it was one of the smoothest powered trials moto's I have been on (owned a Gas Gas 300, named the devil, a beta Rev 3 2003 and we also have a 2015 beta evo 200)....a bit difficult to start when …

Having a few problems with the ossa the bike started misfiring as if i was running out of fuel so i changed the plug and it made no difference the bike starts first kick and ticks over fine when you open the throttle it dies as if it not getting any fuel the fuel filter has been changed about 5 rides ago checked all the connections are fine .Hope its not the fuel pump anyone else had this problem

The explorer is based on the trials bike and I made the conversion.... 4 screws for the sub frame, one in front of the tank and a hidden one under the seat, two cables, open the fuel line with snap closing and you can take away the Explorer kit. Trials plastics can be mounted on the normal fixing points, for better slow motion trials I prefeer changing the front sprocket from 11 to 10 teeth. A real dual purpose bike

Have been thinking about buying an Ossa around the 75/76 age to compete in the Pre 77/80 class in France and Spain. Could any of the officionardos of the Marque point me in the direction of what to look out for and any sensible things/mods needed to bring it more up to date. Not interested in making it something its not..... just want it to run and ride as well as it can. Thanks in advance.

Hi fairly new to this forum, i have just started trialing a 1974 Ossa 250 mar, and i have a few mods i would like to do so any advice regarding these mods would be much appreciated. Firstly, front suspension seems very soft,and and appear to creak a bit when riding, forks are mainly compressed when riding and dont seem to have much travel, i have put heavier weight oil in but it doesnt seem to have made much difference! i am 6'3" tall and a bit on the heavy side, at present the bars seem a bit low(renthal 3"rise) which puts all my weight over the front end, i have ordered some 6" rise renthals so this might help and then will posibly add some bar risers to get me more…

Hello chaps am thinking off buying a ossa Tr77 iv'e never had 1 before are they ok am a bultaco man but fancy a ossa somthing different to my bultacos.

AS ON THE www.zonatrial.net website - "Ossa presents the TR 280 to the President of the Generalitat, Jos

Hello, I am looking to do the upcoming Lands end trial on my 75 Ossa Mar. I will have to put lights on the bike for a full MOT. Can anyone help with some sort of simpe Wiring diagram. It currently runs with Motoplat Ignition which gives me 5 wires Black and Blue which are for the coil, But have not much idea which of the other wires to use for which lights. I have a green,red and white wires coming from the stator. Will i have to use some sort of A/C converter to stop the bulbs from blowing. I really don't want to run a battery. Any help would be great. Cheers, Ian

Anyone else had their coolant turn to a grey colour? Doesn't appear to have oil in it, and there is no water in the engine oil - its just gone grey and looks horrible. I don't know if its just broken down or if the stuff in the bike has been eating the alloy? We've flushed it out and put fresh (good quality) coolant in there today and I will change it again in a week to be sure all the bad stuff is flushed out. I've emailed a photo of the coolant to the importer. Also anyone know at what point in the delivery chain would the coolant be added to the bike?

My 2013 TR280i has started to smoke recently, any idea what might be the cause? Doesn't run so well as well and it doesn't seem to be the fuel mixture issue, I've tried with a different fresh fuel/oil mixture and still the same. I figure it's maybe a gearbox oil leaking slowly into crankcase room, but where that leak might occur, a bad crakshaft seal in one side? Any ideas?

I have been looking at the new OSSA it

I have seen new OSSA dealership announcements and rumors online regarding who it will be, but still no specific mention of who the US OSSA importer is and the status of bike availability. Anyone know who the importer is, or are we in double secret probation.