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Bike Builds, Rebuilds And Restorations Only
(Moderators:
rocker59
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kballowe
,
Ncdan
) »
'74 850T rebuild post flood
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Topic: '74 850T rebuild post flood (Read 14237 times)
wirespokes
Gaggle Hero
Posts: 2111
Re: '74 850T rebuild post flood
«
Reply #30 on:
August 15, 2019, 04:23:53 PM »
Very well done getting her back on the road!
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Testarossa
Gaggle Hero
Posts: 3316
Location: Paonia, Colorado
Re: '74 850T rebuild post flood
«
Reply #31 on:
August 20, 2019, 09:34:26 AM »
Everything copacetic. Still running a little lean. Carb needles were already elevated so I'm going up one jet size from the 140 now installed. A couple more heat cycles and I'll retorque the heads. This bike is so much more fun to ride than the Mille -- I think I may take it to the Ouray NAR.
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70 Triumph TR6R, 74 850T, 74 Yamaha TA125, 89 Mille GT, 99 F650, 2013 Yamaha XT250; 1974 MGB
Gone: 59 Piper Comanche 250, 69 Harley/Aermacchi 350SS, 71 Honda CB500/4, 74 Laverda 750 SF2, 91 Suzuki VX800, 50cc two-stroke scoot, 83 XR350R
Testarossa
Gaggle Hero
Posts: 3316
Location: Paonia, Colorado
Re: '74 850T rebuild post flood
«
Reply #32 on:
August 24, 2019, 11:49:01 AM »
After half-a-dozen heat-cool cycles and 120 miles, I retorqued the heads -- they needed it. Installed 145 main jets and dropped the needle back to stock (middle) position. Replaced the throttle cables. Good clean burn now. Smoother than ever.
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70 Triumph TR6R, 74 850T, 74 Yamaha TA125, 89 Mille GT, 99 F650, 2013 Yamaha XT250; 1974 MGB
Gone: 59 Piper Comanche 250, 69 Harley/Aermacchi 350SS, 71 Honda CB500/4, 74 Laverda 750 SF2, 91 Suzuki VX800, 50cc two-stroke scoot, 83 XR350R
shiskowd
Hatchling
Posts: 101
Location: Calgary Alberta
Re: '74 850T rebuild post flood
«
Reply #33 on:
August 24, 2019, 07:09:51 PM »
Testarossa, what elevation are you running at with that jetting? Are the rest of your carb specs stock or have you had to fiddle with those as well? I’m at 3,300 ft and will need to figure where to start when I get my project to that point.
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'14 KTM 500 EXC
'10 KTM 690R Rally
'75 Moto Guzzi 850T
Wildguzzi.com
Re: '74 850T rebuild post flood
«
Reply #33 on:
August 24, 2019, 07:09:51 PM »
Testarossa
Gaggle Hero
Posts: 3316
Location: Paonia, Colorado
Re: '74 850T rebuild post flood
«
Reply #34 on:
August 24, 2019, 07:45:13 PM »
I'm at 5600 feet, often ride at 9000 and occasionally 12000. I'm very close to stock settings but use very large free flowing foam pods -- dirt bike pods really. At sea level this would be too lean.
«
Last Edit: August 26, 2019, 01:55:32 PM by Testarossa
»
Logged
70 Triumph TR6R, 74 850T, 74 Yamaha TA125, 89 Mille GT, 99 F650, 2013 Yamaha XT250; 1974 MGB
Gone: 59 Piper Comanche 250, 69 Harley/Aermacchi 350SS, 71 Honda CB500/4, 74 Laverda 750 SF2, 91 Suzuki VX800, 50cc two-stroke scoot, 83 XR350R
Testarossa
Gaggle Hero
Posts: 3316
Location: Paonia, Colorado
Re: '74 850T rebuild post flood
«
Reply #35 on:
September 12, 2019, 12:54:47 PM »
Just a quick note after the Ouray NAR. The T ran well over about 400 miles, with elevations up to 12,000 feet. Maybe a little lean on the idle jet. This was the oldest, smallest and lightest of the dozen Geese on the ride, and kept up nicely with Alanp's 1200 Sport (he squirted away from me in full-throttle uphills but I caught up in the twisties).
This is my favorite bike!
Logged
70 Triumph TR6R, 74 850T, 74 Yamaha TA125, 89 Mille GT, 99 F650, 2013 Yamaha XT250; 1974 MGB
Gone: 59 Piper Comanche 250, 69 Harley/Aermacchi 350SS, 71 Honda CB500/4, 74 Laverda 750 SF2, 91 Suzuki VX800, 50cc two-stroke scoot, 83 XR350R
shiskowd
Hatchling
Posts: 101
Location: Calgary Alberta
Re: '74 850T rebuild post flood
«
Reply #36 on:
September 12, 2019, 01:42:54 PM »
Are you running Unifilters? Do you happen to know the part number to save me figuring out which one for my 850T?! I've used those with great success with various dual sport bikes.
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'14 KTM 500 EXC
'10 KTM 690R Rally
'75 Moto Guzzi 850T
Testarossa
Gaggle Hero
Posts: 3316
Location: Paonia, Colorado
Re: '74 850T rebuild post flood
«
Reply #37 on:
September 12, 2019, 03:22:12 PM »
This one. About $20 each on Amazon.
Model UNI Two Stage Pod Filter
Item Weight 2.88 ounces
Item model number AD-234161
Manufacturer Part Number UP-4125ST
OEM Part Number 026150
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70 Triumph TR6R, 74 850T, 74 Yamaha TA125, 89 Mille GT, 99 F650, 2013 Yamaha XT250; 1974 MGB
Gone: 59 Piper Comanche 250, 69 Harley/Aermacchi 350SS, 71 Honda CB500/4, 74 Laverda 750 SF2, 91 Suzuki VX800, 50cc two-stroke scoot, 83 XR350R
shiskowd
Hatchling
Posts: 101
Location: Calgary Alberta
Re: '74 850T rebuild post flood
«
Reply #38 on:
September 12, 2019, 03:55:51 PM »
Perfect - thanks!
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'14 KTM 500 EXC
'10 KTM 690R Rally
'75 Moto Guzzi 850T
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« previous
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Wildguzzi.com
»
General Category
»
Bike Builds, Rebuilds And Restorations Only
(Moderators:
rocker59
,
kballowe
,
Ncdan
) »
'74 850T rebuild post flood
20 Ounce Stainless Steel Double Insulated Tumbler
Buy a quality tumbler and support the forum at the same time!
Better than a YETI! BPA and Lead free.
Advertise Here