Anyone put a Thunderbird tank on a Sprint? - Triumph Forum: Triumph Rat Motorcycle Forums
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post #1 of 10 (permalink) Old 05-03-2019, 11:22 AM Thread Starter
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Anyone put a Thunderbird tank on a Sprint?

Just wondering if anyone has put a Thunderbird 900 fuel tank on a Sprint 900.

I'm starting a custom bike and thinking of this. Be interested to know what adaptions are needed.
Or if anyone has any pics of this.

Cheers, Patrick


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post #2 of 10 (permalink) Old 05-03-2019, 11:35 AM
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No, but seems to me, the bars would hit the tank before full lock.
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post #3 of 10 (permalink) Old 05-04-2019, 07:01 AM
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I've put a Thunderbird Sport on a Trident - which I think amounts to the same thing. You'll need to make some minor modifications to the rear tank mounting bracket which bolts to the frame. Specifically the tank mounting bolts have a slightly different spacing. Some judicious filing will allow the rubber mounting cushions to be moved slightly wider apart and solve the problem! 😁
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post #4 of 10 (permalink) Old 05-04-2019, 07:04 AM
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On tank clearance issues, you will need to screw onto to lock stop lugs small aluminium spacers to reduce the overall steering lock to protect the tank (and pass the MOT)
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post #5 of 10 (permalink) Old 05-04-2019, 07:07 AM
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I think you'll find some more detailed pics on this forum if you search for "My '93 Trident Bitsa Project"
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post #6 of 10 (permalink) Old 05-04-2019, 08:31 AM Thread Starter
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Quote:
Originally Posted by stuartcf View Post
I've put a Thunderbird Sport on a Trident - which I think amounts to the same thing. You'll need to make some minor modifications to the rear tank mounting bracket which bolts to the frame. Specifically the tank mounting bolts have a slightly different spacing. Some judicious filing will allow the rubber mounting cushions to be moved slightly wider apart and solve the problem! 😁
Beautiful bike. Truly impressive. I've been reading through your project thread and very impressed. My spanner skills are not at your level, but I'm enjoying the learning and surprising myself at how much I can do.

“Calling upon my years of experience, I froze at the controls.”
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post #7 of 10 (permalink) Old 05-08-2019, 04:04 AM Thread Starter
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Quote:
Originally Posted by stuartcf View Post
On tank clearance issues, you will need to screw onto to lock stop lugs small aluminium spacers to reduce the overall steering lock to protect the tank (and pass the MOT)
Hi Stuart

Thanks for that.

What changes did you makes to the fuel tap to make it fit. The Sprint and Trident fuel tap has two fuel hoses and a vacuum hose attached to the fuel tap. The Thunderbird fuel tap just has one fuel hose.
Thanks Patrick


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post #8 of 10 (permalink) Old 05-08-2019, 01:33 PM
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I purchased a Pingle unit that was sold as a specific replacement part for a Thunderbird Sport tank. This type gives a good fuel flow to the Mikuni carbs via an in-line fuel filter I added for safety's sake. I blanked off the vacuum take-off from the carbs as this is not needed.

The Pingle tap is old school, with manually selected off, main, and reserve settings. It screws straight into the tank with a gasket supplied.

I fabricated new fuel lines (using clear pipe and angled connectors) to take fuel from the single Pingle fuel tap outlet, via an in-line filter, down to the two fuel inlets between the three carbs.
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post #9 of 10 (permalink) Old 05-08-2019, 03:51 PM Thread Starter
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Quote:
Originally Posted by stuartcf View Post
I purchased a Pingle unit that was sold as a specific replacement part for a Thunderbird Sport tank. This type gives a good fuel flow to the Mikuni carbs via an in-line fuel filter I added for safety's sake. I blanked off the vacuum take-off from the carbs as this is not needed.

The Pingle tap is old school, with manually selected off, main, and reserve settings. It screws straight into the tank with a gasket supplied.

I fabricated new fuel lines (using clear pipe and angled connectors) to take fuel from the single Pingle fuel tap outlet, via an in-line filter, down to the two fuel inlets between the three carbs.
That's great. Thanks so much. You're an ingenious customiser

“Calling upon my years of experience, I froze at the controls.”
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post #10 of 10 (permalink) Old 05-09-2019, 04:05 AM
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Just checked the spelling: It's a Pingel fuel tap (not Pingle) 😁
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