2009 Monster 696 - gearing

Started by alibaba, December 26, 2009, 10:49:35 AM

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alibaba

I have now read in a lot of places that the gearing is too high on this model - supposedly by Ducati to meet some "E3" spec (whatever that is).  Is it true that I will lose no top end by changing from the 15 tooth sprocket to the 14 tooth?  Will I have to shorten the chain?  Comments and recommendations please.
Ron

stopintime

Quote from: alibaba on December 26, 2009, 10:49:35 AM
I have now read in a lot of places that the gearing is too high on this model - supposedly by Ducati to meet some "E3" spec (whatever that is).  Is it true that I will lose no top end by changing from the 15 tooth sprocket to the 14 tooth?  Will I have to shorten the chain?  Comments and recommendations please.
Ron

EURO3 is a European standard for low emissions. High gearing helps to pass the tests. Adjusting the fueling is another.

Bikes usually have to have quite a bit more power than the 696 to reach the rev limits before the wind resistance overcomes the engine's capability. It would help to have a full fairing, but still.....

So, you can change to a 14 without compromising top speed.

No need to shorten the chain, only normal adjustment.
252,000 km/seventeen years - loving it

DarkStaR

How many miles are on the sprockets and chain?

H2O

This is a must do modification. By doing this, you get a feeling of 10 more horsepower. Not actual numbers. The bike pulls away easier from a start and does not chug down low as it does with the 15 tooth. As stated above, you will not realize a top end loss due to aerodynamics. Plus considering how much time is spent in the usable ( legal) range, you wont miss it....unless you are taking it to Bonneville.

If the life of the chain is still good, there should be no need for a replacement. Unless you have 10K  + miles on it, the chain should be good if you maintained it. You will need to loosen the rear wheel and push it toward the engine. This will give you enough room to remove the front sprocket. Once replaced all you need to do is adjust the slack back to spec. I had the dealer do this for me on my 600 mile. They did it free of charge for the labor. All I had to do was pay for parts. I normally do these things myself, but for free, why get dirty

Do a search for a how-to. I provided some pics and steps on how to do this for another member, just cannot recall which board. I got it off my electronic shop manual.


Jim