So i have heard that the stock clutching setup is not always the best. Just wondering what others have done to make it better. I have heard that the carls cycle setup is the way to go, but what is it? Anyhelp would be great.
Thanks
I know you just asked about clutching, but I thought I would reprint this post from a few days ago, thought it might help. Pay close attention to the clutch offset, Both my D-7 and my bud's, the engines were "crooked" to the point where we had to slot the Mag side engine bracket 1/4" to 3/8" to get things in line.
I have a 2007 D-7, 3700 trouble free miles, my bud has the identical sled, 2500 trouble-free miles
BEST BANG FOR THE BUCK MODS
PC III from Jim @ DYNOTECH, $365.00 w/MAPPING INCLUDED (
www.dynotechresearch.com) (585) 993-2777 I'm @ 5-10% LEANER on top, RICHER in the mid-range, that dreaded 5000 r.p.m. flat spot is GONE. The 2008 models were supposedly 5% RICHER than the 2007's so you may be able to go leaner, but that's your call. After the install of the PC III, it's the first time my plugs had any color on 'em other than black.
SLP push arm (part # 23-63) , installs on the MAG side, (2) holes to drill, 20 minute installation time
ALMOST FREE MODS
I checked the engine belt/alignment and center to center, (c/c was fine) offset alignment (engine crooked) mine and my bud's were WAY off, removed the engine and slotted the MAG side engine bracket an unbelieveable 1/4" to 3/8" to get it straight. And yes the tools I used are good and straight, I actually triple checked them plus used Slp and a GENUINE GOLD PLATED POLARIS tools, same end result. Other guys on H.C.S. reported similar problems.
Check your belt to primary sheave side clearance with a new belt, set it at .010" to .015" (mine was .070" from the factory)
Lightly sand (w/180 grit) your clutches perpendicular to the way the belt rides and wipe down with lacquer thinner.
Wash/scrub your new belt w/soap and water and let dry, sounds weird but it removes the mold release compound that would otherwise get smeared all over your brand new clutches.
Run your chain a little looser, get it to where it barely touches the back of the chain case by pushing on it.
Oil pump setting, mine was 37:1 ratio from the factory, I adjusted the 10mm nuts down by the oil pump (Yeah a P.I.T.A. ) 1 1/4 to 1 1/2 turns and it's @ 57:1 for the last 1200 miles. Picture of oil pump posted below, small horizontal mark stamped on arm (3:00 positon) should line up with short horizontal mark on the red dot protruding out from the case AS A STARTING POINT.
DEBATEABLE
I installed the SLP big horn air kit + (4) flo-rites, didn't notice any gain.
WASTE OF $$$$$$ AND YOUR TIME
I did the V-force reeds, maybe slightly more responsive on it's best day, NOT worth the $$$$$$$ and installation time.
PIPES AND DYNO TESTS
DYNOTECH JIM tested (xc8 on H.C.S.) 2008 DRAGON 700 on New Year's day, tried the SLP pipe, minimal gain ONCE THE FUEL CONTROLLER WAS OPTIMIZED FOR EACH PIPE SET-UP, they re-installed the stock pipe and the aftermarket pipe was up for sale.
Hope this helps
