Join Date: Apr 2013
Location: Landenberg, PA 19350 (near Kennett Square, PA)
New Member Introduction: tpbeebejr
Hello, My name is Tom. I am a new member from Landenberg, PA, 19350, near the extreme SE corner of PA, just a few hundred yards from the border with DE. I have owned a 2001 Yamaha V-Star 1100 Classic since about 2006. I bought it from a friend in NY who was the first owner I believe. Until about 2010 I have only been performing basic maintenance on it, with no significant modifications from stock. Since then, I have added a sissy bar with a small rack, some saddle bags, some chrome fender accents, and other minor cosmetic changes. There should be a picture uploaded with this post.
While out on a short ride on an unseasonably nice day in February 2013, the bike started to crap out and exhibit low power, and finally stall. Taking this as an omen, I have become very interested in learning more and digging in. I bought a Clymer manual and I have been reading lots of stuff on the internet, some good, some bad.
I completely disassembled my twin carbs and cleaned everything. I changed the oil and filter, added a new fuel filter, new plugs, new stock air filter, etc. After reading about some common modifications to the V-Star, I removed the AIS system and noticed that my backfiring on deceleration immediately stopped.
Bitten by the bug of DIY modifications, I decided to bore out the first and last baffles in my stock mufflers, leaving only the middle baffle, and essentially making each of the mufflers straight-through systems. The sound improvement was fantastic! I also purchased a pair of MaxMix pilot mixture screws from MaxAir and put some nail polish on the thumb wheel of each so I can count the turns easily. I am running at about 3.0 turns out now. I built a DIY dual manometer with 1/4-inch clear Tygon tubes filled with oil and was able to balance the carbs nicely. To help offset the leaning-out effect of opening up the mufflers I added one 0.020-inch-thick spacer (making a total of 0.040-inch spacing below the white donut) on the diaphragm needle.
My next DIY modification will be installation of two pod filters under the gas tank instead of the stock air box. After that I will start to experiment with some more jet changes. I will probably start by changing the stock pilot jets (17.5) to 20.0. I will probably start by changing the stock main jets from 112.5 front and 110.0 rear to 145.0 on both front and rear cylinders, although this seems like a big jump.
Any comments would be appreciated.