Here we go again.How are you losing engine life again,there,Jerry by doing an earshave?please enlighten me.these bikes ARE NOT as hard to work on as you say.
I said you "may" lose some engine life. I personally believe you will, simply from letting more dirt into your engine, IF you use the K&N filters. I think the oiled foam UNI filters would be a much better choice. You can see right through a K&N filter, you can't do that with a UNI filter or a stock type filter. That would seem to indicate the K&N has much larger gaps in it's filtering media, making it easier for dirt to get through. Anyone who had done any online research knows this is a hotly debated subject, and I am not going to speak in absolutes about it, even though K&N came in dead last in many tests to determine filtering ability. K&N's big claim is that their filters flow more air. That would seem to indicate that they flow more dirt as well. And I don't really even see how flowing more air is a good thing when it comes to an otherwise stock Vulcan 750. If you got any performance at all, it would be so minor you wouldn't notice it. There are to many other restrictions in the Vulcan engine. However, they might lean out the A/F mixture, requiring carb rejetting, which requires carb removal, and everybody knows what a hassle that is. I don't need absolute proof to make up my mind. The old cliche "if it looks like a duck and quacks like a duck...."comes to mind. I would love to see a completely unbiased test on K&N filters vs other filters to settle things once and for all.
As far as the earshave and other modifications go, there is a difference in the way I see things, as someone who bought my bike brand new off the showroom floor, quickly added nearly $1000 worth of genuine Kawasaki accessories, then over maintained it for 13 years (and it's never even been dropped) and the way someone who bought their bike used, probably cheap, and probably with a few things wrong with it. I have a substantial investment in my bike, in both money, time, and enjoyment. I want it to last as long as possible. If I had bought it as a sub $1000 beater, I wouldn't have any issues about modifying it, though if I were looking for such a bike as a project, I would look for something a lot simpler. A Yamaha Virago 750 or 1100 would be a LOT easier to work on than the Vulcan. The Vulcan is not difficult to work on at all, with the exception of the engine. All those cams, cam chains, adjusters, guides, liquid cooling, those nightmarish carbs, convoluted intake and exhaust systems, and the fact that you have to pull the engine for such simple things as replacing a stator, are not beginner friendly. Even dealer mechanics hate the 750. My local kawasaki dealer's service manager
flat out told me that the "the 750 was not designed to be worked on" Just from replacing the stator, I noticed the cover gasket and mating surfaces were less than 1/8" wide in several places. Would be real easy for a beginner to mess up and have an oil leak. The base gaskets are the same way. Probably why so many owners have issues with them leaking coolant. A gasket that narrow is not going to seal well, especially under pressure. I consider that a design flaw.
If you really want a bike that is easy to work on, get a Royal Enfield. You can practically rebuild one with a screwdriver, pair of visegrips, and a pipe wrench. Might even be able to rebuild the top end beside the road, if you had the parts. Mine has just over 10,000 miles on it, and has been very reliable. But it's nice to know that I wouldn't have any problem working on any part of it. It's engine appears to be "designed to be worked on"
Yes I got carried away a bit. Can't sleep. Expecting an expensive new toy to arrive shortly.