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Old 08-10-2010, 01:06 PM   #31
signit98
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Quote:
Originally Posted by motorcyclemark
I really want these sprockets but am still on warranty. Whats your guys opinion ?
Don't ask, don't tell...
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Old 08-10-2010, 01:26 PM   #32
GotRoad?
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Might as well...

Might as well add my positive opinion about Lennie's sprockets; they were one of the better mods I've done to my 1100S. I found that the hardest part of the install was getting the old sprockets off...and yes, as suggested, above do use some monofilament line to keep the new sprockets from falling into never, neverland.
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Old 08-10-2010, 01:54 PM   #33
motorcyclemark
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I'm in for a group buy but do not want to wait for fall or winter. Looks like at most a half day of wrenching then ride. How many needed to get this thing rolling?
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Old 08-10-2010, 03:06 PM   #34
signit98
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I'd say 5 to 10 sets... to make it worthwhile.

It takes me about an hour or so, now that I have done a few sets. With all the plastics work and such, maybe 2.

Have a bit of tips and tricks on my website... under the 12GS
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Old 08-11-2010, 12:39 AM   #35
Beezer
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mizwell do a group buy on left side chain tensioners too then
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Old 08-11-2010, 12:04 PM   #36
Rapid Dog
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Thumb theywork

Quote:
...Lennie's not even a friend of mine...
Oh gee, I thought we was all frens here...er, there.

Contact Lennie directly if you want here: Boxer Performance

BTW Nice pic and writeup Jason!

Regarding the question
Quote:
Anonymous said...

Nice write up and thanks for sharing. A couple of questions...
Did you do the sprocket and booster plug at the same time?
If so, how do you know which one provided the most "noticeable if not dramatic" improvement?
I believe the plug will smooth out the bike by itself, the sprockets are going to give you the oompah-pah. I never new a heavy GS could pull the front wheel off the ground from a rolling start til I popped them babies in, no shit.

Note: be very methodical when doing the install...
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Old 08-12-2010, 01:05 AM   #37
lennie
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Hello adventurers.

I have finally been accepted into the fold.

Interesting post you have here.

If anyone has any questions feel free to ask.
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Old 08-12-2010, 08:08 AM   #38
Rapid Dog
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...and welcome Lennie!
Hey, maybe we should coerce you into making an R12GS snorkle...
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Old 08-12-2010, 10:44 AM   #39
motorcyclemark
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Lennie I have a question about how many rpm's your cam sprockets lower the powerband: http://www.powerfrkusa.net/cgi-bin/s...=1022BR12003BP States 823rpm http://www.powerfrkusa.net/news/lenn...ket-sprockets/ States 1187rpm

Which one is correct and why do the two contradict each other?
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Old 08-12-2010, 10:57 AM   #40
J_White
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I'm curious about a group buy...

Wondering, for someone fairly mechanically inclined and familiar with
wrenching/timing other engines, how easy is it to get a tooth or three out of time when doing this? Obvious marks and procedure to follow?

Everything I've worked on with this bike so far has seemed simple enough
after doing it once, but a little nervous about getting it out of time.
I'm guessing these engines are running fairly close valve-to-piston
clearances, "interference" if something went wrong?
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Old 08-12-2010, 11:40 AM   #41
Hookalatch OP
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Cam timing worries

Look at the excellent photos and descriptions from Jason (Jason Abbott) and Ralf (Signit98) to see you how to do the job. Links to those sites are in this thread. If you look at those and are still nervous you might want to get some help. If you have some mechanical ability and look at those sites you will probably feel like you can do it. I have not done it yet either. It sounds like the cam chain tensioners are the bigger challenge as long as you mark everything first and secure anything that can be dropped.

Chuck
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Old 08-12-2010, 04:08 PM   #42
lennie
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motorcyclemark,

What you read on the powerfrkusa site are the findings and words of someone within that organisation based on any dyno testing they have done.

There is a difference in the cam timing between the GS/R and the RS/RT/S engines and the GS/R engines have a lower torque peak so that the amount of rpm change is less and the S/RS/RT engines have a higher torque peak and the cam timing change lowers the torque peak more rpms.

I hope this helps you understand the difference.

I developed these sprockets in 2000 and have sold over 200 sets to date.

Lennie
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Old 08-12-2010, 07:14 PM   #43
Sergiok
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Quote:
Originally Posted by Rapid Dog
Oh gee, I thought we was all frens here...er, there.
Well, I meant it in that my opinion of the sprockets are 100% impartial, but yeah, we're all friends there. ;)

Lennie, I have a feeling you may be selling more than just a couple hundred sets of these. I couldn't imagine riding a boxer without them.
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Old 08-14-2010, 10:57 PM   #44
HunSolo
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How low can they go?

I have always yearned for a real first gear on my '07 GS. Will the Lennie sprockets help here? Anybody got a better low gear alternative that is not a GSA...I've already got one ('06) of those.

Thanks!
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Old 08-15-2010, 07:39 PM   #45
pavement pounder
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under identical conditions, will these sprockets change fuel economy, if so, what changes should we see?

Thanks
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