Cycle News - Archive Issues - 1970's

TbeBoIDe Workshop HINTS AND TIPS By Rod Breaker extend the stand even further and the washers will drop out and your spring will be hooked. If a vise is not available, one end of the spring can be wedged into a crack in the bench or held by another person with a pair of pliers. exhaust leak where the pipe joins the cylinder. His first thought is to cuss out Yamaha and then just grin and bear it. but it is not Yamaha's fault; the expansion chamber is made to go with the cylinder included in the GYT-kit, and this cylinder has provisions for the chamber which the stock cylinder does not. HOOKING UP CENTER STAND SPRINGS. as every motorcycle riders knows, is one miserable job. These springs that become lost come under the principle of 'Titanic's Law' (similar to the Newton's Law of Gravity, but covering disasters) In respect to the point that something that is almost impossible to hook up, comes undone and gets lost with no effort. The mechanic in the shop usually resorts to a large Phillips screwdriver and hooks this through the spring and then on the spring hook and by levering it down, the spring will slide down the screwdriver shank and onto the hook (hopefully!. Another dodge of the professional mechanic is to have an old screwdriver with the end ground down special to hook these on with, but this is beyond the scope of tbe normal rider who just wishes to hook up one spring, If a vise is handy. clamp ,one end of the spring in it, and by bending the spring back and forth, washers can be inserted between the coils of the spring (if washers are not available, pennies can be used as shown in the photo) to expand the spring. After the spring has been expanded enough to reach both hooks at their closest position.. WARM HANDS IN COLD WEATHER. The accompanying photo shows how a plastic bleach bottle can be used as a simple and effective wind guard for the handlebars and then discarded when it is warm enough to do without them (please discard in a trash can as the plastic is not bio-degradable). The top can be trimmed to where it just fits over the bar and by removing the cables and then the levers and grip rubbers, slide the bottle in position and punch small holes for the cables and then put the lever back on with the grips and it makes for a sanitary job. These bottles can also be painted to match the decor of your machine if you wish. .INSTALLING DT·1 GYT·KIT EXPANSION CHAMBER. Many owners of Yamaha 250 DT·1 Enduros are finding that if they install one of the factory GYT-kit expansion chambers, they get a satisfactory increase in horsepower without the added expense of purchasing the entire GYT-kit. The nice thing about factory equipment is that it bolts right on with no trouble, or so the rider thinks until he goes to install the expansion chamber. The first thing that he notices is the facct that the kickstarter hits the chamber when it returns after kicking. Secondly, after he ~ets.it running, he fmds that he also has an CAMP-IN It is a simple matter to alter the stock cylinder to accept the chamber by cutting off the three top fins on a line down from the contour of the head as shown in this photograph by the dotted line. This will allow the chamber to sit in the right position and will not affect the cooling enough to bother. Also should you get tired of creating noise pollution and wish to join the ranks of those wanting to further off·the-road riding and re-install the muffler, it will in no way hinder this operation. SECURING CYLINDER HEADS WHILE WO R KING ON THEM is a problem encountered by many home mechanics. Whether it is a four-stroke and you are doing a valve job, or a two-stroke and you are just doing a de-coke, a head skittering across the bench is a pain in the neck. A handy holder that can easily and cheaply be made up by the rider by taking an old spark plug of the type used in his 'machine and break out the porcelain (use safety goggles when doing this) so all that is left is the body of the plug. Break off the t.erminal so if you are polishing the cOrrDustion chamber nothing will catch on it. Then weld or braze a piece of metal onto the plug body long enough to be clamped into the vise with the head threaded onto it. (Half-inch square cold rolled stock is best as it can be clamped in the vise better than round stock.) If you do not have a vise to hold it in, weld a piece of threaded bar stock into the plug body and then by drilling a hold In your bench the same diameter as the threaded stock, it can be secured to the bench with two nuts and two washers. Two things to keep in mind, first always use a spark plug gasket with this tool and before installing it in the head after building it, make sure the threads are ctean of all foreign material such as flux or spatters of weld as these could destroy your threads in the head. The accompanying photo shows one of these being used to hold a Triumph Cub head while the valve is being lapped in. (N ote the valve is being lapped in by usi'ng a section of gas line over the stem of the valve in lieu of a suction cup lapping tool.) SOME MoO.R.E. EFFOR.T The Safari Trail Riders Assn. paid for each of its 56 members to become associated with MoOoRoE. ******************************** MOTORCYCLES SHOULD BE SEEN AND NOT HURT! **~*************************** THE SMUGGLER The travel trailer designed especially for motorcycle riders. No need to spend a small fortune for a tru.ck and camper. Just hook up the family car to a "SMUGGLER" and accomplish all the things listed below: Unusual Features: Plush living comforts while "Roughing it" Carries five large motorcycles 45 inch double doors provide easy loading and unloading Lift up floor protects all cabinets agd upholstery from dirt and damage The "Smuggler" can be used as a storage area for your bikes at home This unique trailer can also double as a utility trailer (Haul the T.V., washing machine, couch, even the old piano,) Available in four models: 14 S 6 (not self contained) 16 S 6 (semi self containedl 17 S 6 (Self containedl 19 S 6 (Self containedl Standard Factory Equipment (All modelsl Custom drapes and upholstery Wall to wall Ozite "Indoor Outdoor" carpeting Double stainless steel sink Electric water pump Large capacity ice box (Butane or electric refrigerator self contained models) Ample water supply Butane storage tank (Double tank set-up self contained mexiels) Self contained 12 volt lighting system Large wardrobe closet Sleeping facilities for six with seating for nine Large Pan 0 Rama View windows Eiectric brakes Optional Equipment: Butane and/or electric refrigerator (Standard on self cant. models) Oven-Broiler combination (Standard on self.cont. models) Chemical toilet (Standard on self cont. models) Other Standard Equipment: (self contained models onlyl Hot and cold water with demand system water supply Bathroom with toilet, lavy and shower Thermostatic controlled heater 12400 Benedict Avenue Downey, California 90242 (213) 869-6616 Cl

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