Moto Guzzi Motorcycles - Recent Questions, Troubleshooting & Support


Hi, Steve for this scenario you will need your service manual that has all fastener torque specs -fluid capacities and a wiring diagram on the back pages, parts fiche, and owners manual if you can not find the best tool you ever bought for your Guzzi, despair not, for a mere zero $0 you can download another one.
For more information about your issue and valuable "FREE" downloads that you will need for viewing or printing please click on the blue links below. Good luck and have a wonderful day.
https://www.webbikeworld.com/moto-guzzi-valve-adjustment/
https://www.youtube.com/watch?v=ApQe8s2Xowk
https://www.manualslib.com/manual/1144489/Moto-Guzzi-California-Iii.html
https://www.motorcycle-manual.com/moto-guzzi/
http://www.harpermoto.com/moto-guzzi-parts/seats-and-accessories/1990s.html
https://cadrecycle.com/moto-guzzi-owners-manuals/

Moto Guzzi... | Answered 2 days ago


Hi, Anonymous I would love to help you with your motorcycle question but due to the magnitude of yesterday's solar flare the batteries in my crystal ball are dead and my telepathy headset circuitry was melted. I need the year, make, and model of your motorcycle please click on " Ask For More Information" directly below and provide this information in the box that will open and then click on the green "SEND" box in the bottom right-hand corner. Good luck and have a wonderful day.

Moto Guzzi... | Answered 2 days ago


Hi, Anonymous it should be noted that the "AIR FUEL" mixture screw adjustment "ONLY" manages your idle and has no effect on any other circuit also any intake leaks must be repaired before the A/F adjustment procedure can be performed otherwise you will never obtain a proper idle and you will waste a lot of time chasing the impossible. The A/F mixture screw's purpose is to fine-tune the fuel charge entering the combustion chamber. The following applies to both 2 and 4 stroke engines:
1. The mixture screw may be sealed at the factory with a Welch Plug please review the following video for removal.
https://www.youtube.com/watch?v=wAXcksgvDkM
2. The mixture screw manages a range of 3 complete 360-degree counterclockwise turns from the bottom/closed position.
3. The mixture screw should have a spring and o-ring for tension and sealing integrity.
4. Turn the mixture screw clockwise until it gently bottoms out, this makes the fuel charge very lean and the engine should not idle if it does then the pilot/idle jet is too big and needs to be replaced with the next size smaller.
5. Turn the mixture screw 1 and 1/2 turns counterclockwise to establish a baseline for starting the engine.
6. To fine-tune the idle circuit, adjust the mixture screw 1/4 turn in or out to achieve maximum idle RPM, wait 15 seconds between each adjustment for the idle to settle.
7. Never go past 3 full turns out this will make the fuel charge rich, foul plugs, and produce black smoke out of the exhaust, if the engine RPM keeps increasing past 3 turns the pilot/idle jet is too small and needs to be replaced with the next size larger.
8. After achieving maximum idle back out the mixture screw another 1/8 of a turn then adjust the throttle cable idle stop screw to 950-1050 RPM.
9. This procedure works great on 99% of all engines, for the 1% that demand a more robust throttle response on aftermarket monster fuel delivery systems additional tweaking outside the box may be necessary.
For more information about your issue and valuable "FREE" downloads that you will need for viewing or printing please click on the blue links below. Good luck and have a wonderful day.
https://www.pistonheads.com/gassing/topic.asp?h=0&f=74&t=889881
https://www.youtube.com/watch?v=Acuqlnr3Qx4
https://www.guzzitek.org/gb/ma_us_uk/V35V50V65Atelier_041983(GB).pdf
https://www.genuinemotorcycleparts.com/parts/Moto-Guzzi/V-50-II/
http://mybikemanuals.com/moto-guzzi/

1978 Moto Guzzi... | Answered on Jul 28, 2020


Hi, Anonymous and the usual suspects are:
1. Clutch controls improperly adjusted.
2. Oil level too high in primary chaincase.
3. Primary chain badly misaligned.
4. Clutch discs warped.
5. Insufficient clutch spring tension.
6. Slave cylinder needs bleeding.
For more information about your issue and valuable "FREE" downloads that you will need for viewing or printing please click on the links below. Good luck and have a nice day.
https://wildguzzi.com/forum/index.php?topic=88827.0
https://www.v11lemans.com/forums/index.php?/topic/19808-clutch-not-fully-releasing-and-shifting-problem/
https://www.guzzitek.org/gb/ma_us_uk/V35V50V65Atelier_041983(GB).pdf
https://www.parts-motoguzzi.com/moto-guzzi-motorcycles/500-MOTO-GUZZI-MOTORCYCLES/V50/1980/V-50-III/1044
http://www.thisoldtractor.com/moto_guzzi_small_blocks_owner-s_manuals___rider-s_handbooks___use_and_maintenance_manuals.html

Moto Guzzi... | Answered on Jul 23, 2020


Hi, Anonymous for more information about your issue and valuable "FREE" downloads that you will need for viewing or printing please click on the blue links below. Good luck and have a wonderful day.
https://www.guzzitech.com/forums/threads/service-codes.917/
https://wildguzzi.com/forum/index.php?topic=87716.0
http://www.guzzifan.com/guzzi-tuning-codes-infos-tips/
https://www.guzzitek.org/documents/injection/ServiceCodes_rev00.pdf
https://www.youtube.com/watch?v=Vwnijg8bTxE

Moto Guzzi... | Answered on Jul 21, 2020


Hi, Anonymous for this scenario you will need your service manual that has all fastener torque specs -fluid capacities and a wiring diagram on the back pages, parts fiche, and owners manual if you can not find the best tool you ever bought for your Guzzi, despair not, for a mere zero $0 you can download another one.
For more information about your issue and valuable "FREE" downloads that you will need for viewing or printing please click on the blue links below. Good luck and have a wonderful day.
https://www.google.com/search?sa=X&sxsrf=ALeKk03W0tSAXCT2chHw8qlzfo-i7LXXXw:1595269597688&source=univ&tbm=isch&q=1998+moto+guzzi+v11ev+oil+filter+location&ved=2ahUKEwjUosOtutzqAhUoU98KHQfFDjkQsAR6BAgBEAE&biw=1440&bih=757
https://www.v11lemans.com/forums/index.php?/topic/264-v11-sport-oil-filter-change/
https://www.youtube.com/watch?v=4Zm_Gjn3X_c
https://www.manualslib.com/manual/920412/Moto-Guzzi-V11-Sport-My-2003.html
https://www.revzilla.com/parts/1998-moto-guzzi-v11-ev
http://www.thisoldtractor.com/moto_guzzi_tonti_owner-s_manuals___rider-s_handbooks___use_and_maintenance_manuals.html

Moto Guzzi... | Answered on Jul 20, 2020


Hi, Anonymous for this scenario you will need your service manual that has all fastener torque specs -fluid capacities and a wiring diagram on the back pages, parts fiche, and owners manual if you can not find the best tool you ever bought for your Guzzi, despair not, for a mere zero $0 you can download another one.
For more information about your issue and valuable "FREE" downloads that you will need for viewing or printing please click on the blue links below. Good luck and have a wonderful day.
https://wildguzzi.com/forum/index.php?topic=75222.0
https://www.youtube.com/watch?v=5jnm_aQKNBY
https://www.guzzitek.org/gb/ma_us_uk/1200/Stelvio1200NTX_102009_Atelier%28GB%29.pdf
https://www.revzilla.com/parts/2008-moto-guzzi-stelvio-1200
https://cadrecycle.com/moto-guzzi-owners-manuals/

Moto Guzzi... | Answered on Jul 20, 2020


Hi, Chris if you have changed your engine size, compression ratio, fuel delivery system, air filter size or flow rate, mufflers or exhaust system or a significant change in altitude your carburetors need re-tuning and if your fuel system (gas tank, filters, fuel valve, and carburetor) is contaminated with ethanol sludge, varnish, rust, dirt, water, etc. or your bike has been sitting for months or years without running these components must be "PROPERLY" cleaned and reassembled "CORRECTLY" before any adjustments can be made. Tuning your carburetor is fairly simple once you understand the basic principals. Your engine is a simple airbox sucking air in and blowing it out, it is finely tuned at the factory for maximum performance once you upset that delicate balance by changing air filters, camshafts or exhaust systems your performance may go down the and the engine may run poorly, you need to compensate the air-fuel mixture in the carburetor in order for the engine to run smoothly and at peak performance. If you are running multi carburetors you need to sync them first and make sure your air cleaner element is clean and dry for paper elements or lightly oiled for foam and meshed elements and properly installed. Here is how and where you compensate trouble: "TIP" if your engine "BOGS" you're not getting enough fuel.
1. Close to 1/8 throttle is managed by the air screw and pilot/slow jet.
2. 1/8 to 1/4 throttle is managed by the air-screw, pilot/slow jet, and throttle slide.
3. 1/4 to 1/2 throttle is managed by the throttle slide and jet needle.
4. 1/2 to 3/4 throttle is managed by the jet needle, needle jet, main jet, and air jet.
5. 3/4 to wide-open throttle is managed by the main jet and air jet.
6. A wide-open throttle is managed by the main jet.
If you are running lean, spark plug electrode color is white, the engine runs hot and feels like it is starving for fuel you need to go up on the jet size or move the c-clip down one notch. If you are running rich, spark plug color is black or dark grey, the engine runs cool, and bogs down when accelerating you need to go down on jet size or move the c-clip up one notch. When your carburetor is properly tuned for maximum performance your spark plug electrode will be a light tan color like coffee with cream. If you prefer fuel economy over performance you can go down on main jet sizes until a satisfactory level of lower performance is acceptable versus MPH, your spark plug color will be whiter and your engine will run warmer. These tuning adjustments will only make improvements if your intake and exhaust system have no air leaks or sealing issues and the entire electrical system is in proper working order and you have no mechanical issues.
For more information about your issue and valuable "FREE" downloads that you will need for viewing and printing please click on the blue links below. Good luck and have a wonderful day.
https://support.shoptjbc.com/article/22-how-to-diagnose-rich-and-lean-conditions
https://cartreatments.com/engine-running-rich-symptoms/
https://guzzigander.com/Cali_1400_WM.pdf
https://powersportsoutlet.com/moto-guzzi-parts
http://mybikemanuals.com/moto-guzzi/moto-guzzi-uncategorized-owners-manuals/

Moto Guzzi... | Answered on Jul 20, 2020


Take it back to the people that replaced it

Moto Guzzi... | Answered on Jul 19, 2020


Hi, Baron before diagnosing any brake light issue always check the bulb and fuse first for integrity a brake light staying on is usually caused by the front brake light switch, which is mechanical, not disengaging. On early models moving the throttle control housing closer to the front brake master cylinder is the main fix. On late models, the switch gets tweaked and needs to be realigned. A brake light that does not come on when the brake lever is applied can be caused by a faulty switch or no continuity in the wiring at the switch. The rear brake light switch is hydraulic and it is extremely rare to malfunction in a closed circuit condition causing the brake light to stay on. Usually, rear brake light switch issues are caused by no brake pedal free play or a sticky rear master cylinder piston. A brake light that does not come on when the rear brake pedal is depressed can be caused by a faulty switch, air contamination in the brake line, or no continuity in the wiring at the switch. Finally, most tail light wiring harnesses run under the rear fender held in place by spot-welded clips. Worn out rear shocks or lowered suspension can bottom out causing the rear tire to come in contact with the wiring harness, rubbing the insulation off, exposing the bare metal inner core, allowing it to break or short out.
For more information about your issue and valuable "FREE" downloads that you will need please click on the blue links below. Good luck and have a wonderful day.
https://www.motorcycleforum.com/threads/front-brakes-not-triggering-brake-light.121100/
http://love-it-loud.co.uk/jg4e/8fev.php?pcz=bmw-k1200lt-brake-failure-light
https://www.guzzitek.org/gb/ma_us_uk/1200/1200Sport4V_022009_Atelier(GB).pdf
https://www.genuinemotorcycleparts.com/parts/Moto-Guzzi/1200-Sport/
https://www.manualslib.com/manual/407629/Moto-Guzzi-Norge-1200.html

2007 Moto Guzzi... | Answered on Jul 16, 2020


Hi, Anonymous for this scenario you will need your service manual that has all fastener torque specs -fluid capacities and a wiring diagram on the back pages, parts fiche, and owners manual if you can not find the best tool you ever bought for your Guzzi, despair not, for a mere zero $0 you can download another one.
For more information about your issue and valuable "FREE" downloads that you will need for viewing or printing please click on the blue links below. Good luck and have a wonderful day.
https://www.guzzitech.com/forums/threads/oil-leak.2598/
https://wildguzzi.com/forum/index.php?topic=93175.0
https://www.manualslib.com/manual/991223/Moto-Guzzi-Breva-1100.html
https://www.motorcycleid.com/moto-guzzi-breva-1100-accessories-parts/
https://www.manualslib.com/manual/1103824/Moto-Guzzi-Breva-1100.html

2008 Moto Guzzi... | Answered on Jul 15, 2020


Hi, Anonymous and the usual suspects are:
1. Severely discharged or a damaged battery should have 12.5 volts or more and be able to pass a proper "LOAD" test if necessary, you may have a cursory reading of 12.5 volts or more but little or zero amperage the battery is faulty and must be replaced, AGM batteries fail in this scenario more so than lead-acid batteries.
2. Check battery terminals for damage or corrosion, check the battery cables at "BOTH" ends for loose, corroded, or broken connectors, "INSIDE" and outside the cable harness, perform connector wiggle test and check cables with an ohmmeter if necessary.
3. Spark plugs in bad condition or partially fouled.
4. Spark plug cables in bad condition and leaking check for spark leakage in the dark
5. Spark plug gap too close or too wide.
6. Faulty ignition coil, module, and or sensor.
7. Loose, dirty, or corroded ignition module connector at crankcase.
8. Faulty CKP or CMP, MAP, ETS, ATS, TPS, O2 sensor.
9. Dirty air filter.
10. Intake air leak.
11. Water, dirt, or rust in the fuel system.
12. Carburetor contaminated, sticky float, plugged jets.
13. Carburetor has oil in the bowl due to excessive oil in pre-mix.
14. Carburetor vacuum diaphragm torn, cracked, not seated or installed improperly.
15. Multiple carburetors out of sync.
16. Fuel filter clogged.
17. Old or contaminated fuel.
18. Fuel tank vent system plugged or carb vent line closed off.
19. Gas cap diaphragm valve faulty.
20. Vacuum line from the intake manifold to fuel valve is broken, cracked, pinched, or missing.
21. Carburetor controls misadjusted.
22. Incorrect valve timing.
23. Valve springs floating, weak, or broken.
24. Damaged intake or exhaust valve.
25. Incompatible performance parts.
26. The control module may be in "LIMP" mode
27. Check for engine trouble codes.
Good luck and have a wonderful day.

Moto Guzzi... | Answered on Jul 11, 2020


Hi, Anonymous what is your question?

Moto Guzzi... | Answered on Jul 10, 2020


Hi, Anonymous for this scenario you will need your service manual that has all fastener torque specs -fluid capacities and a wiring diagram on the back pages, parts fiche, and owners manual if you can not find the best tool you ever bought for your Guzzi, despair not, for a mere zero $0 you can download another one.
For more information about your issue and valuable "FREE" downloads that you will need for viewing or printing please click on the blue links below. Good luck and have a wonderful day.
https://www.youtube.com/watch?v=4Zm_Gjn3X_c
http://www.harpermoto.com/pm65/Technical%20Data%20Sheet.pdf
https://www.manualslib.com/manual/1048668/Moto-Guzzi-California-Ev.html#product-California%20Jackal
https://www.jpcycles.com/2001-moto-guzzi-california-jackal
https://www.manualslib.com/manual/1079032/Moto-Guzzi-California-Jackal.html

2001 Moto Guzzi... | Answered on Jul 09, 2020


Hi, Rosso and the usual suspects are:
1. Neutral light bulb burnt out.
2. Faulty neutral switch.
3. A loose bulb in the socket.
4. Faulty wiring from the neutral switch to the light.
5. If the neutral light stays on while the bike is in gear the wire from the light to the neutral switch is grounded.
For more information about your issue and valuable "FREE" downloads that you will need for viewing or printing please click on the blue links below. Good luck and have a wonderful day.
https://www.v11lemans.com/forums/index.php?/topic/5112-neutral-light-not-working/
https://www.guzzitech.com/forums/threads/erratic-neutral-display-light.7968/
http://www.thisoldtractor.com/moto_guzzi_misc_workshop_manuals___shop_manuals___service_manuals.html
https://www.revzilla.com/parts/2002-moto-guzzi-v11-le-mans
http://www.thisoldtractor.com/moto_guzzi_misc_owner-s_manuals___rider-s_handbooks___use_and_maintenance_manuals.html

2002 Moto Guzzi... | Answered on Jul 06, 2020


Hi, Anonymous I would love to help you with your motorcycle question but due to the magnitude of yesterday's solar flare the batteries in my crystal ball are dead and my telepathy headset circuitry was melted. I need the year, make, and model of your motorcycle please click on " Ask For More Information" directly below and provide this information in the box that will open and then click on the green "SEND" box in the bottom right-hand corner. Good luck and have a wonderful day.

Moto Guzzi... | Answered on Jul 06, 2020


Duplicate question already answered

2000 Moto Guzzi... | Answered on Jul 05, 2020


Hi, Gary for this scenario you will need your service manual that has all fastener torque specs -fluid capacities and a wiring diagram on the back pages, parts fiche, and owners manual if you can not find the best tool you ever bought for your Guzzi, despair not, for a mere zero $0 you can download another one.
For more information about your issue and valuable "FREE" downloads that you will need for viewing or printing please click on the blue links below. Good luck and have a wonderful day.
https://www.google.com/search?sxsrf=ALeKk01H97XwB0_WaLotEV5h6pD41p0RPQ:1593929996049&source=univ&tbm=isch&q=2000%27+moto+guzzi+jackal+wiring+diagram&sa=X&ved=2ahUKEwjs-Nf5u7XqAhUjheAKHXhRCoEQsAR6BAgIEAE&biw=1440&bih=757
http://www.thisoldtractor.com/moto_guzzi_tonti_wiring_diagrams_-very_large_and_easy_to_read-.html
https://www.manualslib.com/manual/1048668/Moto-Guzzi-California-Ev.html#product-California%20Jackal
https://www.revzilla.com/parts/2000-moto-guzzi-v11-jackal
https://www.manualslib.com/manual/1080883/Moto-Guzzi-California-Titanium.html#product-CALIFORNIA%20EV

2000 Moto Guzzi... | Answered on Jul 05, 2020


Hi, Anonymous and the usual suspects are:
1. Condensation builds up from parking a hot bike in a cold place.
2. Blown head gasket on liquid cooled engines.
3. Faulty water pump.
4. Blown base gasket.
5. Cracked cylinder or head.
Good luck and have a wonderful day.

Moto Guzzi... | Answered on Jul 05, 2020


Hi, Anonymous I would love to help you with your motorcycle question but due to the magnitude of yesterday's solar flare the batteries in my crystal ball are dead and my telepathy headset circuitry was melted. I need the year, make, and model of your motorcycle please click on " Ask For More Information" directly below and provide this information in the box that will open and then click on the green "SEND" box in the bottom right-hand corner. Good luck and have a wonderful day.

Moto Guzzi... | Answered on Jul 05, 2020

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