Cycle News - Archive Issues - 1970's

Cycle News 1971 03 09

Cycle News is a weekly magazine that covers all aspects of motorcycling including Supercross, Motocross and MotoGP as well as new motorcycles

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UPDATE PISTON Club Guide CORRECTIONS DISTRICT 36 FEATHER RIVER M.C. Marysville, Calif. 95901. 100 0 St., LODI M.C. - 2945 Mo"e Road, Lodi, Calif. 95240. inst~llin~ engine IS RING COMPRESSOR. SLO POKES Calif. 9.4558. keep it from wedging between the pis ton and the cylinder wall. After installing the piston rings, clamp down the clip as shown until it is tight and then back if off a little so that it can rotate, then slip the cylinder down over it. After the cylinder has accepted the rings and pushed the clip down, remove the clip and then push the cylinder home onto the base separately. and WESTSIDE EAGLES M.C. Turlock, Calif. 95380. Ave., P.O. Box 368, DISTRICT 37 CALIFORNIA ENDURO ASSN. - 5619 S. Norwalk Blvd., Whittier, Calif. 90601 (previously listed as CE RAI. have accomplished the light into the cylinder, the flashlight has to be For the rider who may do a top end on his twin maybe once in all the time he owns it, it is a lot oaf bread to layout for a special ring compressor to do the job. A cheap ring compressor can be made up from a hose clamp of the type used on radiator hoses and which are available from any auto parts store. Purchase a set that will just fit over your piston, then make three or four kinks in it as shown. These kinks are so that the cylinder will push the hose clamp (jubilee clip) out of the way as it sli~s down over the cylinder and right in your line of sight. If you move the flashlight so you can see, you don't have enough light in the cylinder to see anything. Here is a little inspection lamp that can be made up very easily and cheaply to do the job better than any exterior light source because it fits into the cylinder itself through the spark plug hole. First you need one of the small instrument light bulbs that are of the bayonet type, but with the tangs pressed from the body of the bulb base instead of being two little pins. (Yamaha has used these extensively and they should be available from Yamaha deale", although most shops that handle Japanaese machines carry them.) The advantage of this type bulb is thilt both the SAFARI TRAIL RIDERS - P.O. Box 2274, South Gate, Calif. 90280. 213/923-3601, 422-2092. (en-door'ens, dyoor'ens, in)n The act, quality, or power of withstanding hardship or stress, ~ w W ...J U > U base and the bul galss itself are small in diameter so it will fit easily ·into the plug hole. Now all that is needed are two lengths of wire long enough to reach to the battery and two alligator clips. Solder the end of one of the wires to the body of the bulb and the other wire to the bottom terminal of the bulb (you can't use the bulb socket as it is too large to fit into the plug hole). Then insulate them with a few layers of electrical tape. Connect an alligator clip to the other end of each wire and it is ready to use. With the spark plug removed, clip the ends to the battery and insert the bulb into the plug hole and you will find that the entire cylinder will be illuminated. I. can't stress enough the fact that the engine should not be turned over while the bulb is in the cylinder or you may find yourself removing the head to clean out the broken glass from a smashed bulb. If you find it necessary to revolve the engine at all with the lamp inserted, it should be done with the transmission in top gear and done by rotating the rear wheel very carefully and slowly. ITS All iN El MONTAdERO SCRAMBLERS M.C. - 7514 Reseda Blvd., Reseda, Calif. 91335. 213/345-7616. SIDEWINDERS M.C. - P.O. Box 142, Trona, Calif. 93562.714/372·5553. TWIN WHEELERS M.C. St., Oxnard, Calif. 93030. VIEWFINDERS Hambillon, 6521 M.C., 2701 Alvarado - clo Orion Ave., Van Duffy Nuys, Calif. 91406. 213/764-9880. DISTRICT 38 LIONS M.C. - 4621 Newport, San Diego, Calif. 92107. 714/222·1058. NEW CLUBS DISTRICT 21 NEBRASKA MIC ASSN. - P.O. Box 3404 Main Office, Omaha, Nebraska 68103. 402/527·3211. DIS'fRICT 26 KNIGHTS M.C. - 120 Fir St., Elko, Nevada 89801.7021738·7829. DISTRICT 35 BISHOP M.C. - 337 Clarke, Bishop, Calif. 93514.714/873-5380,873-4111. CYCLE QUEENS OF AMERICA - 511 P Street, Bakersfield, Calif. 93304. 805/322-6779 (Women only). DISTRICT 36 ALL AMERICAN M.C. - 1390 Lucretia Ave., San Jose, Calif. 95122. AMERICAN CANYON M.C. Broadway, Vallejo, Calif. 94590. 2750 ANCHOR M.C. - Post Directory, Naval Air Station, Alameda, Calif. 94501. CAL·AM MOTOCROSS Sacramento, Calif. 95814. 2414 13th St., High Mountain Enduro - 2/14/7 1 Open B Class 1st Bob Miller - EI Montadero 250cc A Class 2nd Lou Milligan - Matador 1325 B 15th St., CAPITOL CITY M.C. Sacramento, Calif. 95820. HERES PRooF! CC RIDERS - 5792 Blossom Ave., San Jose, Calif. 95123. CENTRAL VALLEY ROADRIDERS Spencer, Modesto, Calif. 95351. 330 COAST SI DE M.C. - P.O. Box 792, Pacifica, Calif. 94044. FREMONT M.C. - 37318 Fremont Blvd., Fremont, Calif. 94536. FREMONT TRAVELERS - 6044 Madelaine PI., Newark, Calif. 94560. IRON HORSEMEN M.C. - P.O. Box 35, Sunnyvale, Calif. 94088_ 408/286-9436. (PleJJSe turn to pg, 27) Sawmill Enduro - 2/7/71 250cc B Class 1st Dick Harvey - Matador 2nd Tom Patton - Matador Goldrush Enduro - 2/7 171 250cc A Class 3rd L. Dickey - Matador . Z 213/3474974,883-8077. ENdURANCE ~ ~ CONEJO TRAI L RI DE RS - 4201 Topanga Cyn. Apt. 79, Woodland Hills, Calif. 91364. HUNTINGTON BEACH M.C. 14331 Cedarwood Ave., Westminster, Calif. 92683. 714/897·7666. en en" ~ job by INSPECTION LAMP. How many times have 3881 Beckworth Dr., Napa, Gum you you wanted to look down inside of your cylinder through the spark plug hole? Sometimes you might suspect a holed piston or maybe you just want to check the carbon build-up on the piston crown. Whatever the reason, it seems that when you try to shine a flashlight into the hole, in order to get the 871 Hillcrest Ave., 1111 MORE HINTS & T I P S W o r k s b o yourself. P.O. Box 1386, REdding, SPARTONS M.C. Woodland, Calif. 95695. .... impossible when it comes to working on a twin where both pistons have to be inserted into the cylinders at the same time. I have seen many break the rings on the twins. The reason for this is that you usually need about three more hands to squeeze the rings together and drop the cylinder o'lter them at the same time. About the time you insert the rings into one side, the other side slips down on a ring that isn't inserted and breaks it off. This mearlS a trip to the shop to buy a whole set of rings as they cannot be purchased POLKA DOTS M.C. - P.O. Box 8544, Sacramento, Calif. 95822. 916/967-9249. SHASTA M.C. Calif. 96001. By Rod Breaker most home mechanics accomplish it with ease, these same mechanics find it almost NEVADA TRAIL BLAZERS - 636 Morrill Ave., Reno, Nev. 89502. 702/323-8846. PLACERVILLE M.C. Placerville, Calif. 95667. The BODle While a cylinder on a single-cylinder a relatively simple procedure and Checkpoint M.C. Hare Scrambles-2/14/71 1st OVERALL Larry Pfutzenreuter-PurSang 2nd 250 Expert (5th Overall) Wes Anderson-PurSang OCMC Hare Scrambles-2/21 /71 250 Expert Class 1st Larry Pfutzenreuter-PurSang (2nd Overall) 4th Gary Preston-PurSang 5th Gary Griffin-PurSang 6th Tim Okamoto-PurSang 1st 125cc (11th Overall) Ken Buckspan-Sherpa S Indian Dune Motocross-2/21 /7 1 250 Senior Class 1st Dave Rodgers-PurSang Irwindale Raceway-2/21 11971 Open Dirt Bike Drag Class 1st Greg Comstock-EI Bandido

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