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12 — Engine-Electrical
A dealership had installed these resistor core wires with crimped-on ends on this customer's /7 model. They didn't seat the plug wire correctly and the resultant arcing destroyed the plug wire and the coil. Always avoid any suppression core plug wires such as the Taylor "Spiro Pro" or any other high resistance plug wire. Only metallic core plug wire should be used on Airhead models with correct 5k ohm plug caps (1k Ohm or 5k ohm is OK for points equipped models).
Sometimes the aftermarket crimp-on wire ends do not fit the coils well. At
the BeemerShop we only use the factory BMW solder-on wire ends which mate
perfectly in the factory coils. They also fit the aftermarket coils with
female towers correctly such as the Dyna coil pictured here.
Make sure that you push the plug wire all the way into the tower until it snaps into place. Try pulling the plug wire back out, if it doesn't resist, it is not seated fully. In some cases you may need to push the plug wire end with a small screwdriver to get it seated correctly.
Correct metallic core plug wires with solder-on factory ends are available
at the BeemerShop for stock, custom, and dual plug applications.
There's a new special tool for alternator belt adjustment on Oilheads through June, 2003, production.
All BMW Oilhead alternator belts need to be replaced every 36K miles, (then adjusted again after 6K miles on all R1150 models through June, 2003, with non-Elastomar belt). BMW introduced a new tool a few years ago that makes adjusting the alternator belt a snap. In the early years, the tension adjustment was made at the adjuster on the back of the plate that holds the alternator. Access was a pain. Now with this new tool, adjustments are made at the front of the plate. Simply loosen the locknuts, remove the locknut on the adjuster and install the special tool. Tighten and hold the special tool to 8 NM, then tighten the locknuts to 20 NM and your done. Because it takes less time with this new tool, we charge less money to replace or adjust your alternator belt. Check our on-line store in the tools section to purchase this nifty tool.
Note: this tool does not apply to the new style Elastomer belt used on models
beginning around July, 2003, production.
Email Ted with technical questions you'd like to see addressed on this page!
Providing service excellence for your BMW motorcycle! Serving BMW Motorcycles in San Jose, Santa Clara, Sunnyvale, Cupertino, Mountain View, Monterey, Salinas, Watsonville and Santa Cruz. Providing service for BMW Motorcycles in San Mateo, Santa Clara, Santa Cruz, Monterey and San Benito Counties. Now supplying Wilbers shocks, Ohlins shocks, Ikon shocks and the GS-911 Fault Code Reader for BMW CAN-bus (CANbus) Motorcycles.
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This page was last modified November 6, 2012
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