Phil, shove a 14 tooth sprocket on to try it. A cheap fix for me.

phil ten, I have just done this mod and can confirm that the extra low down grunt is well worth it.
A couple of weeks ago I got in touch with the 'Captain' and he arranged a filter, but I was running out of time before a trip around Ireland.
I got in touch with Kev who advised me not to run the new filter without the 'Kev mod' because of the increased airflow.
One very kind forum member saw my dilema and gave me a Kev mod which I fitted very easily.
Then I fitted a brand new pair of tyres (TKC's) as I knew I would put some serious mileage on my bike for the trip.
This was a camping trip down from Yorkshire to south Wales, over the ferry to Ireland, up the West coast to meet up with some Thumper club members in Northern Ireland for a couple of evenings and then ferry back over to Scotland for a haggis in 8 days!

1500 miles and I've nearly wrecked the rear tyre!!!:120:

Anyone that knows me will tell you that I do not travel lightly and like to ride with enthusiasm. The engine characteristics have really changed, the bike will pull from 2k up to fourth gear and goes like stink now. Anyone who has travelled in Ireland will know that there are very few dual carriageways especially in the South so when I hads to overtake I just gave it plenty.:o

Should have put road tyres on really but didn't expect to appreciate such an improvement. I did the mod the day I set off so I did not have time to assess the situation. I do have a standard exhaust by the way.
I set the fuelling mod at the 4 o clock position and the bike still pops on the overrun. Despite the feel of an increase in power I was still getting a good 200 miles before reserve which I always did which was also a concern. It really does appear that the engine is just working better and not stifled.

Single can next methinks!

My thanks to Kev, Captain and Dave.:wub:

Will post pics of 'damage' to tyre.

Hope this helps.

Is it worth changing to a 14 front sprocket when doing about 70% offroading? How much different would it be?
Is there any difference between changing the front or rear sprocket??

i "think" the difference is just wear rate?? i also "think" that 1 tooth down on the front is 2 up on the back? which will need a longer chain.. i "think".

I "think" i may be wrong though :) :) usually am :022:

Based on having fitted a smaller front sprocket to several bikes, and specifically my old 2004 XTR:

1. One tooth on the front is equivalent to three on the back. So changing the front sprocket is a relatively coarse adjustment, and if you want to fine tune the final drive ratio you will need to change the rear by one or two teeth.

2. It makes the bike noticeably livelier off the mark and more responsive on the road. It also reduces top speed a little, and increases engine revs for any given cruising speed. As the top speed on any naked bike is limited by your neck muscles, the reduced top speed may not be relevant.

3. My 2004 had quite bad snatching at low revs and it definitely improved with the smaller cog.

4. Fitting a smaller front cog, you will almost certainly not need to alter the chain (I didn't). With a larger rear, you may have to. It will depend on the wear of the existing chain and how much movement you have left in the adjusters.

5. Either change will ****** up your speedo reading, making it over-read by around 7% (on top of any existing inaccuracy). This can be rectified by fitting a speedo healer (���).

6. Theoretically, as the smaller sprocket makes the chain articulate through a bigger angle every revolution, it will increase chain wear, and fitting a larger rear would be kinder to the chain. However, I doubt if any increased wear is significant (bearing in mind the multitude of wear factors on an exposed chain) and I certainly didn't notice any ill effects.

For the modest cost and ease of modification, I reckoned this was well worth while on my 04. As the 06 doesn't have the jerkiness off idle, and I don't do any technical off-road stuff, I won't be bothering with it on the new bike. I like the long-legged feeling of the standard setup, and the nice 15/45 or 1:3 satisfies my inner OCD.

Hope that is some help.

I'm like you , I hate loud bikes..but the Metal Mule 2 into 1 system
is not to loud with the baffle in... And they save a lot of high weight &
give 50mm more ground clearance with skid/bash plate fitted...

I run a 14T sprocket.. I fined it great...makes a big diffrent's on river crossings..
you can go that bit slower in 1st...

I already has the MTC Single can, and I would order the DNA Stage 1 & Stage 2 (3) filters including the DNA airbox cover, and also Kevs fuel mod this week. Has anyone tried the 14T sprocket with this combination of mods?

I've spent a bit of time lately riding an MT-03, which is the same motor but has 15:47 gearing as stock (not far off the 14:45 you are proposing). It's funny for about five minutes, then you just keep trying to change up another gear, and being annoyed when there isn't one.

If you've got the filter/fuelling/exhaust mods, you've already got far more bottom end than the sprocket change will give you.

And ultimately, you don't need to be riding that slowly. Really.

Mt-03's really do wheelie quite well though

I like 14 off road and 15 for open road work,but saying that 14 better around town.:023:Open pipe power difference to standard pipe N/A noise its great,but the best improvement is the weight loss its great.:mbounce:Iv had snorkel in out shake it all about .Change fueling is best mod,:sweat: