Sunday, March 27, 2011

MOTORCYCLE ALARM circuit scheme

MOTORCYCLE ALARM circuit scheme
Overview

The circuit was designed to create an early warning alarm system against any form of theft that is significant to the owners of motorcycles or bikes.
Terminology

* Mercury Switch – a switch constructed into a sealed glass tube or envelope containing two or more electrical contacts and a small amount or a bead of liquid metal mercury
* BC547 – NPN small signal transistors designed for general purpose switching and amplification due to its low voltage, low current and three different gain selections
* BC557 – PNP general purpose transistors used for amplification and switching due to its low current and low voltage

Circuit Explanation

This alarm system can utilized any number of normally open switches like the mercury (tilt) switch. It functions by allowing or interrupting the flow of electric current in a circuit. The physical position or alignment of the switch in relation to the earth’s gravity is where the functionality of the switch depends a lot. No current will flow to the electrical contacts as long as the mercury stays on the lowest point of the glass bulb. However, once the switch is tilted at a certain angle or direction, the liquid mercury will be touching the set of contacts and will produce an electrical connection between the contacts. When the switch is tilted back to the opposite direction the electrical current stops immediately.

The mercury switch is positioned in such a way that they will close when the bike is lifted off its side stand, pushed forward off its center stand, or the steering is moved. The siren will then sound for at least one witch that will close. The alarm will reset, approximately after two minutes, when the switches have been opened again. Changing the value of capacitor C1 changes the time delay for the alarm to turn OFF. When the alarm is silent, no current is virtually used.

The circuit should be properly protected from condensation or dampness as these may cause the circuit to not to function properly. The components should fit the size of the enclosure so the wirings can be well protected. Alternatively, a hidden switch can be used instead of a key switch. Also, a relay’s normally closed contacts can be used while the ignition energizes the relay coil and the alarm will set itself upon turning OFF the ignition
Application

In general, motorcycle alarm systems function in a different way as compared with those in automobiles. These alarms can be created in several forms such as a remote receiver where the alarm has the capability to be controlled via a remote control; as tilt sensors where a mercury balance sensor is utilized by being hooked up on the motorcycle which is a guaranteed way of interference detection; and as shock sensors where a loud distress signal is produced due to the signal that is transmitted to the alarm box when the motorcycle is tampered with, touched, or moved.

Choosing the appropriate alarm system should consider the following factors like the speaker alarm dimensions, main unit dimensions, working temperature, static current, alerting volume, working frequency, range of remote, and basic functions such as auto re-arming, mute alarm, sensitivity adjustment of remote, anti-hijacking, remote finding of motorcycle, remote arm and disarm, and remote cutoff engine.

The mercury switches are very useful in different types of applications, in spite of the hazardous threat of the chemical mercury, especially when permitted to vaporize. Although it can be handled safely, the mercury can cause death or nerve damage if skin contact or accidental ingestion occurs. This is why lots of manufacturers started replacing the mercury switches with other mechanical method of interrupting electrical current. On the other hand, they are still sought because of their accuracy like the water level sensing, open/close mailbox, room thermostats, motion-activated bomb detectors, car hood and trunk light activation, and home lighting circuits.
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Wednesday, March 23, 2011

full motorcycle ride stuff

full motorcycle ride stuff, strange but true versatile economical and affordable. especially if a motorcycle ride buffaloes.

Motorcycles are two-wheeled vehicles that are powered by an engine. Inline wheels and a motorcycle at high speed still is not reversed and stable due to the force giroskopik; at low speed continuous setting by the rider handle bar provides stability.
The motorcycle does have many advantages, but if that is what buwat excessive Ga ...?!. yach
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modifications tiger

Determine options for motor modifications tiger or other motorcycle like a pro mega motor is a bit difficult, maybe a lot of motorcycle enthusiasts who are often bored with the concept that monoton.I slightly modified motor provides a description of the concept that relatively little modif motor extrem, you notice the motor image below.
motor image motor below is a T3 with the concept of artificial jaguar people abroad, people who modify the motor is inspired by the famous car manufacturer in the UK are jaguar cars.

with a super fierce jaguar view and bandaged with black, the motorcycle can attract attention, although not think in terms of vehicle safety because the seating position is comfortable and covered the time obstacle play bike.who care if that makes this bike look grim and super extrem? whether motor or motors tiger mega latest pro you ready? if indeed you are interested, prepare and bring funds to the repair shop bicycle motorcycle favorite with the concept like this, I already gave examples of such modifications and extreme motor bikes safely modify motormu pal.
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HONDA ACCORD CIELO 1996

HONDA ACCORD CIELO 1996
Cielo sus water use, certainly gokil! If most Honda adopts water sus using air cylinder system (water cylinder), Inggar Ari Bowo even off the track. Doi sus prefer water with a rubber balloon (air bag). The reason can be understood, just as most people are traumatized by the use of air cylinder that is claimed to be extremely loud. Let's straighten this understanding first. Superior air cylinder for easy spakbor applied in a narrow cavity. Its diameter is small but strong. Also safe for the front legs. Shortcomings, which seem solid air cylinder is often not capable of delivering air in it when the car was shaken due to the uneven road. In effect, the convenience of reaching the lowest point. That was then, the euphoria of his pas sus water. Now, Acacia love telling recipe! For information, these cylinder systems have additional devices. "His name accumulator whose function is to facilitate the channeling of air while the cylinder, so the pressure in the cylinder decreases, the effect is still soft anyway," said Iwan, fronted Acacia airbag suspension system installed on this Ari Cielo. Actually accumulator mechanism has been widely used in a rear aftermarket for motorcycles. Back at Ari's Cielo. Sus water collection system is capable of adjustable rubber balloon up and down as needed. One set of water sus Universal Water is composed of four pieces of rubber balloons, compressors and air tubes 3 gallons Viair. The amount of it is used for daily, and selected the 2 ply or 2-channel with the front-rear setup. Prepare only fund about Rp 27 million to get it. Because it is not made specifically for the Honda Cielo, there are changes that accompany him. At the feet of the front, swing arm to move position. Primarily pursuing a more horizontal body. Front swing arm position was moved further down to about 20 cm. "The structure is similar to the Honda S2000, more comfortable going across the bumpy roads, and the suspension could be flat again," said Iwan. Likewise with the rear legs. The main constraint is the narrow space spakbor. Especially when a thick rubber balloon must enter into it. So inevitably spakbor part in the racing about 2 cm.
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Wednesday, March 9, 2011

CJ-7

Jeep were owned by the American Motor Company (AMC) in the mid-1970s, and they responded to the growth of the leisure industry by building a modern version of the military Jeep: the CJ-7. The new vehicle had a longer wheelbase and Hot six-cylinder power, and was also the first jeep to become available with a Turbo-I Hydramatic gearbox. Hard top and soft top versions were available, but they all used the same rugged separate ladder-style frame which was almost identical to I hat used on the World War II Jeeps. Semi-elliptical springs were used all around on I lie twin-live axle set-up, with part-time four-wheel drive coming on the manual version and the Quadratrac permanent four-wheel drive being optional on both the manual and automatic. As many were used off-road, the Jeep came with a four-point roll cage, but otherwise was little changed styling-wise from the original Jeep shape.



Hi Jeff Nice to have talked to you I can't believe the interest I have in the CJ7 I have had it completely redone, it is a frame off restoration, with all new metal. I brought it about four years ago and just had a friend of mine in Md who works as a correction officer had the prison body shop do all the work, It took three years but turned out great. I just ordered a complete a/c factory system. I was going to install this summer but it is still in the boxes, I will include it, I have two other dealers and one friend who are interested in it, but I will let you sell it since I bought the Dodge from you.
The CJ-7 featured a longer wheel base than the CJ-5 and handled better. It was introduced in 1976 and ONLY 379,299 were built during 11 years of production.
The CJ-7 featured an all-wheel drive system called Quadra-Trac, as well as a part-time two speed transfer case. Other features included an optional molded hardtop, and steel doors. The CJ-7 was also available in Renegade, an upgraded Laredo model, and the Top of the line Golden Eagle Limited Edition. Noticeable by their different body decals(Eagle on Hood and "I will soar on the wings of Eagles"...Isaiah 40:31). The Golden Eagle Limited Edition model featured nicer Golden Eagle Tan/Beige Leather seats, steering wheel tilt, and a chrome package that included the bumpers, front grill, and mirrors.

The CJ-7 continues to be used in the sport of mud racing, with either the stock body or a fiberglass replica. It is also a favorite for rock crawling.
Mine has a completely rebuilt 258 cu in (4.2 L) AMC 6cyl Engine, with Headers and many other upgrades. The transmission is a Tremec T-150 (3 speed manual) with a Hurst Shifter. Comes with a Hard top and a soft top. Includes Two extra front doors painted to match still in the boxes. A brand new Extra Mopar steering box, and a KYB Steering Stabilizer bar, both still in the Mopar box's is included.
This Special Limited Edition Golden Eagle Jeep CJ-7 can be yours! Come to Jarretts to see for yourself.
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Wednesday, November 17, 2010

Manufacturer Yamaha Motor Company XS 750

The Yamaha XS 750 and Yamaha XS 850 was a line of motorcycles produced by the Yamaha Motor Corporation from 1976 to 1981 for the worldwide motorcycle market. The last model year of manufacturing was 1981. Released in Japan in 1976 as the GX750 sporting wire wheels (as opposed to cast alloy in all other models) the XS750 became the name for the export model.

These bikes are usually referred to as "Triples" because they have 3 cylinders. The first 4 model years the bike displaced 750cc. This was increased to 850cc for the final 2 model years. There were various changes made to the model over the years.

Manufacturer Yamaha Motor Company
Also called triple
Parent company Yamaha
Successor XS850
Class 750cc
Engine 4 stroke 3 cylinder air cooled DOHC
Transmission 5 speed
Suspension Front: Telescopic fork
Rear: Swing arm
Brakes Front: dual disc
Rear: disc
Tires Front: 3.25H-19-4PR/1.8 Kg/cm (26 psi)
Rear: 4.00H-18-4PR/2.0 Kg/cm (28 psi)
Rake, Trail 27 deg / 114 mm (4.49 in)
Wheelbase 1,470 mm (57.9 in)
Dimensions L 2,160 mm (85.0 in)
W 965 mm (38.0 in)
H 1,185 mm (46.7 in)
Fuel capacity 17 liters (4.5 US gal)

Very few of these bikes seem to have been made and even fewer survived. The cast wheels were in an unpainted finish and the decals were in a distinctive stripe design on the tank and side panels. This bike had a 3-1 exhaust system, and Mikuni “Mark I” carburetors. The air box assembly was different from later years. The air filter could be changed by opening the seat. This model had triple contact breaker points making timing adjustment complex. Also featured was a separate regulator and rectifier. The seat has a short tail piece this year.

This bike received rave reviews in Cycle World, who called it a "Bargain BMW" and rated it one of their top 10 bikes in the world in 1976.
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Manufacturer yamaha XS650

The XS650 was a standard motorcycle made by Yamaha from 1968 to 1985. The XS650 began with the 1955 Hosk SOHC 500 twin. After about 10 years of producing 500 twin, Hosk engineers designed a 650cc twin. Later the Hosk was acquired by Showa Corporation, and in 1960 Yamaha had bought Showa with Hosks early design of 650cc twin.

Manufacturer Yamaha Motor Company
Also called XS-1, XS-2
Parent company Yamaha Corporation
Production 1968–1985
Class Standard
Engine 654cc, 4-stroke, parallel twin, air-cooled, SOHC, 2 valves per cylinder
Power 53 bhp @ 7000 rpm
Ignition type

Contact point-pre 1980
CDI-post 1980
Transmission 5-Speed sequential
Frame type tubular steel
Weight 450 lb (dry)
Fuel capacity 3 U.S. Gal


Engine
Like its contemporaries in its class the XS 650 has a 360° crank angle. This provides an even firing interval between the two cylinders, but also generates some vibration caused by the two pistons rising and falling together. This vibration is particularly noticeable at idle.

The XS 650s valves are operated by a single overhead camshaft (SOHC) whereas almost all contemporaries in its class have pushrod valvegear.

The 360 degrees crankshaft uses three roller bearings and a ball bearing. The camshaft uses four ball bearings, and rolling bearings are used throughout the rest of the engine. Connecting rods turn on needle bearings. Since the engine is SOHC, there are no pushrods to operate the valves. The camshaft gets its drive from a single-row chain running from the center of the crankshaft. Chain is maintained by a spring loaded guide, which also takes up unnecessary slack. The intake valve opens 47 degrees BTC, closes 67 degrees ATC, yielding intake duration of 294 degrees, exhaust duration on 281 degrees, and an overlap of 88 degrees. Due to the fact that the flywheel is lighter, the engine tends to pick up revs rapidly when the throttle is quickly open.

During the later developments of the engine compression ratios were lowered, then raised. Pistons were lightened 20 percent along with connecting rods to reduce the reciprocating mass inside the engine. Aluminum pistons are slightly domed with valve pockets. Pistons have three rings installed, two compression and one oil control ring.

Horizontal split of the crankcases offers the advantages of oil tightness through the elimination of vertical joints and one-step access to both the lower end and the gearbox. Oil pressure is provided by the trochoidal pump, driven by a steel spur gear off the crankshaft. The main bearings, crank pins, transmission main shaft, clutch bushing, shifter fork guide bar, and rocker arms are lubricated by pressurized oil, whereas the rest of the engine is lubricated by "oil splash."

Carburetion
Pre-1980 models use the twin 38 mm constant velocity Mikuni carburetors that can be tuned by moving the needle clip position, or by replacing jets. In the carburetors the velocity of the fuel mixture through the venturi, regulated by the opening of the butterfly valves and engine speed, causes a pressure difference between the top and the bottom of the carburetor pistons. This pressure difference raises and lowers the pistons.

Post-1979 models use smaller 34mm Mikuni CV carbs with needles that seem to be listed in parts menus as being 'fixed' position,(in other words a needle that may only have one clip position). The pilot and main jets can be changed for different sizes. If the 34mm CV carb needles only have one fixed clip position.

As previously noted, of '81-'83 models using; Hitachi carburetors with all jets pressed in place. That was not correct for the XS650s.[clarification needed] That is true for the later model, '80-on, XS[850] triples, Yamaha's three cylinder 750/850 model.
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