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your Mikuni HSR is fitted with the tuning parts we found to work with the great majority of engine performance modifications. However, the large number of differing exhaust systems and cams available makes it impossible to accommodate all possible combinations with one carburetor set-up. Your HSR will almost certainly run correctly on your engine without exchanging any parts. But, if it doesn’t, you may alter its tuning to suit your engine’s needs by following this guide. Some exhaust system designs strongly interfere with carburetor tuning. For instance, it is very difficult to get smooth and responsive carburetion through the entire rpm range with straight pipes and completely open exhausts. In addition, very small volume, small diameter mufflers are often ‘seen’ by the engine as straight pipes and present the same tuning difficulties. Very long duration cams often cause relatively poor running below about 3,000 rpm, depending upon the individual cam’s intake valve closing point. Such cams cause reverse airflow out the mouth of the carburetor (often called “reversion” or “standoff”) that can be mistaken for a carburetor tuning problem. Harley-Davidson Screamin’ Eagle performance parts are proven and predictable. If you have any doubts about a particular exhaust system, air cleaner or ignition, you may substitute the Harley Screamin’ Eagle parts as a “reality check.” When re-tuning is required, it usually involves small alterations to the idle and/or main system. The following pages supply enough information to make such alterations relatively simple. Please note that there is no point in attempting to tune any carburetor unless the engine is sound and in a good state of tune. If you have any doubts about the general condition of your engine, have it checked by your dealer or an experienced mechanic before attempting to fine-tune your Mikuni.
1 Remove the stock seat. 2 Unplug the stock wiring harness from the ECM (Fig. A) . 3 Plug the PCV connectors in-line of the stock ECM and wiring harness (Fig.B). 4 Tuck the PCV to wiring harness connection into the opening in front of the battery box (Fig. C). 5 Using the supplied velcro attach the PCV to the top of the ECM (Fig. C) FIG.A FIG.C Remove Ground wire FIG.B PCV connector PCV connector Stk connector Connection 15-011 www.powercommander.com 2010 Harley Davidson Touring PCV – 4 6 Remove the right hand saddlebag and sidecover. 7 Locate the stock O2 sensor connections and unplug both connectors (Fig. D) The stock O2 sensors will NOT be connected to anything at this time. The sensors can be removed from the exhaust if you have a way to plug the hole. Unplugging the sensors does NOT cause an engine light but will cause a historic code in the ECM for non-active O2 sensor. This is not causing any issues with the running of the bike. FIG.D Follow these instructions when using the Auto tune kit – part #AT-100B 1 Remove the left hand side cover. 2 Place the Autotune modules in front of the battery as shown in Figure H. If using velcro make sure the velcro does not cover the designation of the unit on the back (AT #1 or AT#2). The modules are coded to the front and rear cylinders. FIG.E 3 Remove the rubber plug for the diagnostic connector. Plug the lead from the Autotune kit into the stock diagnostic connector (Fig. J).This connection is under the LH sidecover. DO NOT connect to the accessory connection in front of the battery. 4 Reinstall the sidecover. FIG.F 15-011 www.powercommander.com 2010 Harley Davidson Touring PCV – 5 5 Connect the longer harness to the front O2 sensor. Route the harness along the front down tube and along the backbone of the frame to Autotune module AT#1. Wire the harness to the module per Figure G. The harness can be cut to length if desired. 6 Repeat step 4 for the rear cylinder. Wire the harness to Autotune Module AT#2. The harness can be cut to length if desired. If your exhaust does not accept the M18x1.5mm O2 sensor you will need to install the supplied O2 bungs with the Auto tune kit into your exhaust. See Auto tune instructions for more information
To install this needle and jet kit: • Remove carburetors from the engine per Yamaha shop manual procedures. Note: Always perform internal carburetor work in a clean area. • Remove the vacuum slide from each carburetor. • Remove the OEM needle, spacer and washers, noting order of assembly. (Note; the washers are used as shims to raise the needle, each is equivalent to ½ clip position, use these to fine tune the needle) • Counting from the top to the bottom, install the new Baron needle clip on groove #4 of the replacement Baron adjustable needles. The top is the blunt end of the needle. • Reinstall the OEM spacer and washers as shown in the figure below. • Reinstall the vacuum slides along with the diaphragm spring and reattach the diaphragm covers Note: Verify that the slides maintain their full range of movement! • Drain the fuel from the float bowls and remove the bowl covers. • Remove the OEM main jets and replace them with Baron’s supplied Mikuni main jets. Install the “base setting” main jets as indicated above. NOTE: V-Star 1100 carburetion runs staggered jetting! Make sure the front cylinder’s carburetor gets the larger main jet (numerically), and the rear cylinder’s carburetor gets the smaller main jet . Important! Extra jets have been included in your kit. These will help you fine-tune the carburetors for changing conditions. These conditions include climate and weather patterns in your area as well as exhaust equipment on your motorcycle. Barons determines the jet and clip recommendations that best suit your average riding conditions based upon information supplied to us at the time of your order. Changes in weather, altitude or modifications to your exhaust system may require jets other than those supplied. • Thoroughly clean the inside of the float bowls prior to reinstalling them. 311 #1 Industrial Way – Fallbrook, CA 92028 – USA Phone: (760) 731-1200 Fax: (760) 731-1284 E-mail: firstname.lastname@example.org Website: www.baronscustom.com Included in this kit: (4)Mikuni main jets #107.5, 110, 112.5, 115, (2) titanium needles, (2) clips, (8) cap-head allen screws Tools required: 3-4-5 mm allen wrenches, 10&12 mm sockets, 10mm end wrench, phillips & flat screwdrivers, pliers, drill. Revision 4.0 • Reassemble the carburetors by reversing the order of above steps. Use the new supplied cap head Allen screws in place of the OEM Phillips head screws for the float bowls. • Locate the fuel mixture screws – they will either be a screw head or a brass plug. If it is a screw head, skip to step c . If you see a brass plug with a small hole in the center, proceed as follows: a. With a 5/32″ drill bit, carefully and slowly drill through the fuel mixture plugs
race harness kit, air funnel kit, racing oil pump gearing kit, adjustable camshaft sprocket kit, manual camshaft tensioner and blade kit, a reusable engine cover gasket set and racing cylinder head gaskets. Here’s a closer look at the new racing parts and their associated performance improvements: TRACS – Triumph Race Calibration Software TRACS ( T riumph Ra ce C alibration S oftware) is a new computer program that allows racers to tune Triumph’s programmable race ECU from a laptop PC. Developed by one of Triumph’s most experienced EFI calibration engineers, the programmable ECU and software was created for the growing number of competitors that are riding Triumph motorcycles at the track. The new software provides racers with quick access to a wide range of adjustments that can be downloaded to the race ECU in about 35 seconds for tuning during testing, practice and qualifying sessions. Features include: Fully programmable fuel mapping (500rpm increments, for individual cylinders). Fully programmable ignition mapping. Switchable wet and dry maps. Adjustable pit lane speed limiter and speedo calibration. Adjustable quickshifter cut duration (adjustable at low, mid and high RPM) Adjustable rev limiter up to 15,000rpm. New software strategies to improve throttle progression. Optimized software to run faster to cater for the higher RPMs involved in a race environment. Ability to save multiple maps within the memory of the PC. Ability to update an existing 2007/2008 Race ECU to 2009 specification and functionality.* (*Not all features will be available if using the 2007/08 Race harness.) Exhaust – Triumph/Arrow Titanium “Stage 3″ System Triumph has continued to collaborate with Italian race exhaust specialists Arrow Special Parts to develop a new, full titanium racing exhaust system. This system complies with current FIM regulations, works as part of the factory race kit, and offers a significant weight reduction and considerable power gains.