Recent Posts

81

General Discussion / Re: SEPTEMBER 19, 20, 21 GEORGIA MOTO GUZZI CAMPOUT

« Last post by elrealistico on September 16, 2025, 04:20:47 PM »

I will be there on the V7III, camping!

82

General Discussion / Re: 2020 V85TT CEL after/during heavy rain

« Last post by Grabcon on September 16, 2025, 04:07:04 PM »

"Sometimes the bike has sat in the rain because we were traveling and it may have been parked for the evening, then when we start out the next day I might get the CEL after some miles"

This scenario is repeatable and you can inject the waterproof cover into the mix to help rule in, or rule out water intrusion into the fuel after sitting in the rain.  That's why I suggested the idea.

Personally, I think you have a very high probability of fuel contamination. 

The drain on the fuel filler well may be blocked and water is getting past a fuel cap seal.  I've had to clean the drains out in years past.

You asked for help, and I'm just offering some suggestions learned from past experiences over the past 30-years.  It rains a whole lot more in the Ozarks than it does in Arizona, so I've faced a few trials over the years.

Thanks for the input this is what I was thinking as well. Unfortunately the fuel filter is internal and attached to the fuel pump. I saw a write up on how to replace the fuel filter on GTM. Not difficult just a PIA to do.

83

General Discussion / Re: Backfiring persists after 1 year sitting

« Last post by Huzo on September 16, 2025, 03:37:47 PM »

Backfiring…
Is it blowing back out the carb or firing unburnt mixture in the pipe ?
I’ll betting on points or distributor related cause, have you ascertained which side is failing ?

84

General Discussion / Re: 2020 V85TT CEL after/during heavy rain

« Last post by Tkelly on September 16, 2025, 03:19:58 PM »

In your first post you say the bike has no issues now,I don’t get what you are asking.I had an idiot light on my Stelvio supposedly caused by a hard to reach bad connection under the fairing come on during strip out west in 2016.At some point it went out and never came on again.I guess it fixed itself,maybe yours did too.

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General Discussion / Re: 2020 V85TT CEL after/during heavy rain

« Last post by rocker59 on September 16, 2025, 03:05:36 PM »

Kind of tough to cover the bike while riding in a heavy rain. Plus by then it is too late.

"Sometimes the bike has sat in the rain because we were traveling and it may have been parked for the evening, then when we start out the next day I might get the CEL after some miles"

This scenario is repeatable and you can inject the waterproof cover into the mix to help rule in, or rule out water intrusion into the fuel after sitting in the rain.  That's why I suggested the idea.

Personally, I think you have a very high probability of fuel contamination. 

The drain on the fuel filler well may be blocked and water is getting past a fuel cap seal.  I've had to clean the drains out in years past.

You asked for help, and I'm just offering some suggestions learned from past experiences over the past 30-years.  It rains a whole lot more in the Ozarks than it does in Arizona, so I've faced a few trials over the years.

 

86

General Discussion / Re: 1981 CX100 adjustable front brake lever

« Last post by guzzista on September 16, 2025, 02:59:50 PM »

Here is a link to brake dogleg lever . I am not associated with ETJ (seller/site)

https://www.eurojamb.com/products/nos-brembo-brake-clutch-lever-round-reservoir-guzzi-ducati-laverda?_pos=32&_sid=daf441793&_ss=r

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General Discussion / Re: SEPTEMBER 19, 20, 21 GEORGIA MOTO GUZZI CAMPOUT

« Last post by Motormike on September 16, 2025, 02:33:11 PM »

Here's the "fine print" on staying at the Smith House in Dahlonega: "Rates do not include 8% state, 8% local tax, $5/per night transportation tax, and 4% booking fee."  A booking fee?  Really?  Transportation tax?  I have my own transportation, thank you very much (and I've already paid my tax to operate it!)  Man, I used to like Dahlonega, but it's gotten WAY too big for its britches.

88

General Discussion / Re: Backfiring persists after 1 year sitting

« Last post by redrider90 on September 16, 2025, 01:15:00 PM »

1989 Mille GT 1000cc bought in 2021 and still all stock with about 36,000 miles.
Bike ran fine until I again let it sit for over a year. 

So, to re-start, I fogged the cylinders, drained the carb bowls, dumped the old gas and put in new 93 octane gas, changed the battery, and fired it up -- no probs after a few cranks.

BUT, I get bad backfiring above 3000rpm.

I checked the plugs (which look ok) and made sure they were getting spark.

​Any suggestions regarding backfiring?
1) Anything ignition related due to sitting?
2) anything specifically carb-related due to sitting?
3) What could have gone wrong, mechanically, after sitting for a year to cause backfiring at higher rpm?

Thanks.

What kind of ignition do you have. Some 89s came with Moto Plat like my 90 mille. They are terribly unreliable. I'd check plugs first and then coils. Condensers can look ok at low RPM and fail at speed. Stock coils always good bad over the years.   Checking the timing is drop dead easy. Pop off the access cover on the flywheel and check the timing with a timing light. Advanced  is set at 5K RPMs so get out your ear plugs and a fan on the motor. I forgot for the moment what the timing is set at. I have to go out to my shop which I am not near to get the specs.  You can go to https://www.thisoldtractor.com/mg_manuals/owners_manual_california-iii_1989-01_en.pdf The 89 Calli with points is the samehttps://www.thisoldtractor.com/mg_manuals/owners_manual_california-iii_1989-01_en.pdf

89

General Discussion / Re: 2020 V85TT CEL after/during heavy rain

« Last post by Grabcon on September 16, 2025, 12:38:52 PM »

Kind of tough to cover the bike while riding in a heavy rain. Plus by then it is too late.

90

General Discussion / Re: 2020 V85TT CEL after/during heavy rain

« Last post by Grabcon on September 16, 2025, 12:36:19 PM »

Plug the bike in when light is on to find out what goes on. Plug into software to tell you. It's the way it's made, or look at info on dash for codes.

The only code ever shown has been an O2 sensor code. If the senors are good than all the code tell you is that it is fueling issue.