carbon on piston

[kdxkawboy@aol.com]

In a message dated 2004-06-01 7:43:37 PM Pacific Daylight Time, a_boy_and_his_dog@... writes:

> > Pat- > > i'm just curious about the use of the Z87.1 rated saftey glasses, with ide > protection, as opposed to "cheap sun glasses" or presciption glasses. > > don't want my friend to show up with the "wrong" gear and be told she can't > ride. > > she's already purchased one pair of MX gloves and one pair of textile street > > gloves... since her "garfield" gardening gloves didn't seem up to the task. > at > just under 5' stuff that fits her is hard to find. she has two pairs of > hiking > boots, and everything else covered... at least as far as the class > requirements > go, but the "gogles, not glasses" requirement seems overly simplistic. > > thanks- > > fixer > Lost Wages, NV >

The vest way to make absolutely sure is just take the glasses the first night and ask. On the range we don't have to worry about car tires spitting up rocks are insects hitting upi at 60 mph. On the range you don't need any more eye protection than you would on a bicycle. Throughout my Rider coach training I wore MX gloves and several of my classmates were wearing open face or half helmets with sun glasses and nothing was said. In my first class all but three students were wearing open face or half helmets with sunglasses, no problems. Pat G'ville, Nv [Non-text portions of this message have been removed]

[aboyandhisdawg]

ummm, i've taken a grasshopper to the middle of my Oakley Factory Pilot glasses at ~50 and gone faster than that on some downhils... on a bicycle. it is possible to break the double nickle without an internal combustion engine! she'll take her gear to the first class/lecture, but here, that's on a friday evening, and the next class is the next morning... almost no time to get more gear if whatever she has ahead of time isn't "approved". fixer Lost Wages, NV

--- In DSN_klr650@yahoogroups.com, kdxkawboy@a... wrote: > On the range we don't have to worry about car tires spitting up > rocks are insects hitting upi at 60 mph. On the range you don't need any more eye > protection than you would on a bicycle. > > Pat > G'ville, Nv

[kdxkawboy@aol.com]

In a message dated 2004-05-30 1:31:41 PM Pacific Daylight Time, glenski_31@... writes:

> > my piston has much carbon on it. it is scored along with sleeve. > the question is what is this an indication of. too rich, or too > lean?? i have a new piston and rings and honed sleeve so i would > like to start off and try and aviod as much carbon build-up as > possible. i have the carb off the bike as well (dynojet kit) and i > am thinking about moving the e-clip up or down depending on wether > rich or lean. please fill me in. > > thanks > > glenski >

If the scoring runs vertical it sounds as if a PO has seized the engine, kicked it free and then continued riding without replacing piston and rings while honing the cylinder. When the engine seizes piston material welds to the cylinder wall. Breaking the piston free leaves the score marks. Running the engine wears them down smooth leaving just the valleys. A seized engine begins burning oil which could be the source of your carbon buildup. Pat G'ville, Nv [Non-text portions of this message have been removed]