Please Help!!!
 

Hello to everyone! I'm going to buy a 2011 ec 300 soon and I'm a little confused. Owner claims that is a sixdays version

1. Reading this forum ,saw that 2011 six days comes with: Sachs/Ohlins
and Marzocchi/Ohlins. I'll attach some photos ,if anyone can recognise the fork.
(Owner says that the bike is eqquiped with Sachs/Ohlins).
Βefore buying, 300 will be seen by an engineer. Then we will find out which version it is by removing the side cover by it's ignition. I have seen what both flyweels look like. They produce also different voltage right?!

2.Bike has a grey head compare to other GG which have a darker/black color head. I saw few bikes on youtube with the same color head. It's not aluminum.
Does it come from the factory like that? Seems the same but grey :confused:

3.Also bike has 300+hours with stock cylinder. Is that too much? I will take dimensions from cylinder and piston,to see if their condition is good.
After how many hours does need this bike new cylinder?

I hope everything go well because the bike rips!!! :D

It is difficult to see from your photo. If it is Marzochi, it will be 45mm diameter (the inner, lower legs). The Sachs will be 48mm. There is also a 48mm Marzocchi, but that wasn't used in 2011 (apart from the replica bikes) if memory serves me right.

I don't think there is any difference in flywheels in 2011, apart from the bikes with electric start that had a gear wheel mounted to the flywheel. They all produce the same voltage / power.

I have no comment on the colour / type of head. It looks quite standard to me. One thing you can consider (after you buy it), is measuring the squish, and modify the head (if needed) to get the squish ccorrect. There are some threads on this forum about this. Quite a simple job for an engineer with a lathe.

It all depends completely on the use in those 300 hours. I just opened up my own EC200. There, the cylinder is still very nice after 320 hours. I replace the piston each 100 hours or so.

The 48mm PFP Marzocchi forks did come on the '11 bikes. Mine came factory with them.

In the pic it looks like the 48 Zokes but would need to see a pic of the top adjusters for me to be sure.

I'm not sure either.

OP, it's easy to tell by where the wiring comes out of the flywheel cover which stator/flywheel you have. Roughly 10 o'clock position is the smaller stator, if it comes out at the 2 o'clock position (at the bump in the cover) it is the larger stator. From the pic you posted it looks like the larger one.

Same. That head looks exactly the same as my '11. I know on some earlier bikes they had a darker look to them.

I completely agree.

I didn't know that. My son's '11 EC200 came with 45mm Marzocchis.
However, the forks in the picture seem to have black inner legs which points towards 45 Mazocchi or Sachs. The 48mm Marzocchi PFP came with chrome inner legs with black outer or black inner legs with red outer legs, right?.

the Sachs were red uppers with black lowers so this will be Marzocchis, but easier if the OP gives a photo of the top of the fork and measures the lower stanchions

I think both the 45 and 48's were available in '11. I don't know if it makes a difference but mine is the EC250 Racing edition so maybe that's why it has the 48's.

I Know the pic doesn't match up with either the 45 or 48's I've owned but the 45's I had were on an '05 and had chromed lowers like my 48's.

flywheel and forks

2011 Base Model came with Sachs 48mm

2011 Race Model came with Zoke 48mm CC

2011 Six Days came with Zoke 45mm OC

I don't have another photo. Are these red top adjusters? Maybe is Sachs?

I vote for Sachs.

The are almost certainly 48mm Sachs.

So bike probably has Sachs/Ohlins. Is that a "standard" version right? Flywheels on standard/6days are the same or the only difference is the stator?
Thank you all for your responsiveness!

Well, yes, Sachs/Ohlins was surely one of the combinations at that time. I think they offered different combinations in different markets. As Jacob 'Berg pointed out above, there were 3 different forks in use, I presume that was in the US market. Jacob told us that the Sachs were used in the base/standard model there.

I don't think there was any difference in stators or flywheels in 2011.
The difference (apart from the suspension) between the standard and six days models were mainly cosmetic. The SixDays was more "completely" equipped, with some protection under the engine etc. Perhaps another type of handlebar.
But this was 10 years ago, most of these parts will have been replaced several times if the bike has been ridden off road for 10 years. So what's important (in my view) is the state of the bike that you buy. Does it seem to be well maintained?
One word of caution regarding the Sachs forks; I fear spare parts can be a (even) bigger problem there than the Marzocchis, but I don't know. I have a son with a Sachs-equipped EC300, he has not needed any spare parts lately :-)

It seems to be well maintained. I am skeptical about what I'll see when the mechanic opens the cylinder. I hope it will be ok.
Owner has changed the fork-suspension springs with harder ones.
My weight (85kg) is for 44( is this number a kind of hardness?) springs.
This is the 2nd owner and with my turn I'll become 3rd.
Forks and suspension had a service when the current owner bought it but I don't know what does it means. What does include a fork/suspension service? Some oil change or what?!

I believe that the 2011 base model had Sachs suspension, front and rear. The shock should be easily identified by the red reservoir.

Back suspension is Ohlins

The 44 is the stiffness of the springs, aka spring constant. 44 is actually 0.44 kg/mm. Higher number means stiffer spring. If you are interested in the physics, take a look here:
https://en.wikipedia.org/wiki/Hooke%27s_law

Fork and shock service usually includes replacement of oil, sliding bushings and seals, plus full cleaning of all internal parts. I do it every 40-50 hours or so. Ohlins states every 25 hours for some of their products.

I am studying in the second year as a mechanical engineer :D. 25 hours is quite frequently. Should i pay attention to anything else on the bike before buying it?
Subframe or something else?
Thanks for your response guys