Spark plug type & gap
***Note: Recommendations from the NGK website are listed here as a convenience only. I strongly prefer the NGK BP6ES listed by Moto Guzzi over any other listed by NGK.
Moto Guzzi:
NGK BP6ES; .6 mm / .023 in
From NGK website:
***NGK BP7ES; .028 in
Bosch
Platinum WR7DP (4216 or 4016)
Moto Guzzi:
NGK BP6ES; .6 mm / .023 in
From NGK website:
***NGK B7HS; .028 in
***NGK B7ES; .028 in
Bosch
Platinum WR7DP (4216 or 4016)
Moto Guzzi:
NGK BP6ES; .6 mm / .023 in
From NGK website:
***NGK BP6ES; .025 in
Bosch
Platinum WR7DP (4216 or 4016)
3 liters (3.17 quarts) of 20W/50 motor oil
Note: Many people in countries that sell oil in quart containers simply use 3 quarts of oil. The lack of 0.17 quarts of oil makes no appreciable difference in performance or longevity.
I've never been one to concern myself with one particular brand vs. another. To the contrary, I've purchased and used Wal Mart's inexpensive Super-Tech brand oil for years. However, recent federal regulations have dramatically decreased the ZDDP content in most oil. ZDDP content of at least 1200 PPM is necessary for our flat tappets and camshafts to last. Therefore, I've now become quite picky as to which oil I purchase. Here are several that still have sufficient ZDDP levels (for now, anyway):
- Mobil 1 15W50
- Mobil 1 Extended Performance 15W50
- Mobil 1 V-Twin 20W50
- Shell Rotella T 15W40
- Valvoline Racing VR-1 20W50
Due to cost and availability concerns, I am currently using Shell Rotella T 15W40.
Some of these oils are highly detergent. When switching oils, it is best to perform a couple of very quick oil changes to remove all of the deposits the detergents removed.
Here are some articles on the subject:
Mobil 1 product comparison750cc (1.585 pints) of 80W/90 gear oil
GL-4 gear oil is preferred.
I extracted this information from Charlie Mullendore of Antietam Classic Cycle off of the Yahoo! Loopframe_Guzzi news group.
Like engine oil, I've never been one to concern myself with one particular brand vs. another. To the contrary, I've purchased and used Wal Mart's inexpensive Super-Tech brand gear oil for years. However, I've learned that the GL-5 rating for gears oils contains sulphur compounds that attack brass and bronze. Since the 4 speed transmission use bronze bushings, the GL-4 rated gear oils should be used. Here are a couple of brands that are still available in GL-4:
- Pennzoil Gearplus 80w90 GL-4
- Redline MT-90 75w90
750cc (1.585 pints) of 80W/90 gear oil
GL-5 gear oil is fine.
180cc (6.1 ounces) of 80W/90 gear oil
GL-5 gear oil is fine.
360cc (12.7 ounces) total capacity; of which:
- 340cc (11.4 ounces) should be 80W/90 gear oil
- 20cc (.67 ounces) should be a molybdeum additive
GL-5 gear oil is fine.
50cc (1.8 ounces) of ATF (per tube) for disc forks