Lennie's Camshaft Sprockets

[lennie]

Celticus,

An American customer phoenixtexoma was polite enough to do the instructions.

I may have to update them.

For anyone in the future just email me with any questions.

Regards,

Lennie

[hillbillypolack]

Interesting thread, especially interesting for my GS.

The mods seem to be made on 'early' 12GS models (05-09). Do these have similar results on camhead Boxers (2010-current)?

Reason I ask is that after test riding the camhead, it wasn't much different than my 07 (hexhead) except in that lower range. If I could boost the lower range comparably (certainly less than trading in), it would be a bit of a windfall. I'm not riding in the upper revs to take advantage of the 10hp difference between these engines. Torque on the bottom is where it's at for most of us.

Also would be interested to see any dyno results before and after installation. Thanks.

[lennie]

HIllbilly,

I have just relocated to Melbourne from Hobart and I am setting up a warehouse space for another business.

I will get access to the later camhead models and design and test sprockets for those. Give me about 8 to 10 weeks to get this done.

For any guys out there in Melbourne near Maidstone/Highpoint contact me if you are interested in letting me look at your bike to just remove the cam gear and rocker covers so I can inspect whay might be involved.

I can order a full set of the stock sprockets and get new advanced cams made up and tested.

Regards,

Lennie

[lennie]

This in from another customer in Canberra Australia.

It is a good explanation of what his result was.

I put the sprockets in last night. Not all straight forward but we got it done.
　
Bugger Me !!!
It is like a new bike. I cannot credit the difference. It is happy to toddle about anywhere between 2700 and 3200 rpm but if you give it the gas... its off like a scalded cat. I cracked open the throttle on a section of open road and it just got crazy from there.
The bike has always been torquey and had a good power spread but this feels like it should have come from the factory this way. it suits my riding style and the things I do everyday perfectly. Great in the suburbs and quick without having to wring its neck.
The nice thing is that the movement in the torque curve has also made it a truck load easier to ride in the traffic (low speed, low revs). Being able to confidently use lower revs means less babying the clutch and less lurching of the bike in the on/off throttle situations.
Thanks Mark.
Rs,
Paris
PS I wrote a review on R1150r.net

I am now in Melbourne if there are any locals that want to catch up.

[celticus]

I injured my back at work right after I installed my set of Lennie's Sprockets and so had not had a good chance to try them out until yesterday.
It seemed to me that the bike (An R1200R) was just raring to go and that it was now the way it should have come from the dealership.
I had my first unintentional lofting of the front tire during that ride and I was hooting like a crazy man in my helmet. Very pleased.
I didn't notice ANY diminishing of top end power.
It red lined in 5th very quickly and predictably but I hadn't room for 6th.
Very healthy and powerful is the way it felt to me. Some say they have tried these sprockets and taken them back off.?? I don't get it , but some people don't like lasagna either.
Good on you Lennie!
This is an enthusiastic recommendation.
Mark

[lennie]

celticus,

Objective achieved.

First time hooting inside the helmeo has been reported.

Enjoy the ride.

[Will Allen]

Any update on the effecs of these on the DOHC 1200GS's?

[lennie]

Will,

The R1200 twin cams have a different set of sprockets and they don't have a locating pin.

There are threads on other sites about being able to advance the cam timing with just the cam timing tools.

[mfbRSV]

Received my sprockets just seven days after placing the order with Lennie. Thank you sir!

Hope to put them on the bike a soon as I get the free time (to ride & wrench).

[lennie]

mfb,

Just part of the service.

Glad to know you got them and take your time with the install them enjoy the ride.

[johnno]

tried fitting Lennies sprockets, heard a crack, thought great the sprocket bolt has let go, alas it was the torx driver had snapped. luckily the head of it was still in the nut & not in the sump. second go, got a better quality driver, it just started to twist, thats when i stopped put everything back & left the bike as is. I do all my own maintenance so I know which way a bolt undoes, the head of the sprocket nut has started to strip so I am not game to try a 3rd driver. the good book says not to use an impact driver so I'm stumped. Any suggestions are welcome, maybe heat I don't know.

[Rick Lee]

Anyone got a part number or pitch/thread numbers for some replacement bolts? I figure I might as well install new ones while I'm in there.

[Rick Lee]

Not sure, but I think it's #4 below. If so, part # is 07 12 9 903 613. Dimensions are M10x1.25x25.

[lennie]

Rick,

This issue of not being able to remove the bolt is so few and far between in the 11 years I have been selling them and this is the only second case I know of.

This is a link to the Pelican Parts board where a member has the same issue with the bolts not breaking loose.

http://forums.pelicanparts.com/bmw-r...t-removal.html

In the past I have had varying degrees of difficulty in getting the bolt to break free and usually use a pipe over my 1/2" extension bar with someone hard on the rear break with the rear wheel on the ground.

Let me know how yu go with this.

[Rick Lee]

Yes, I'm following that thread too. I'm not worried. I'll use Snap-On bits and always use a big breaker bar instead of ratchets. I just figure there's no point in reusing stressed bolts. And the new ones cost next to nothing. So why not replace them while I'm in there?