More technical tips and information | 🛑 | ▼
Miscellaneous technical stuff around the TR1
Michael Suppan created a 3D print file to make TR1 fork plugs yourself. Download the zip-archive with the STL file here or click the picture. 
Anja Dannhäuser sent me instructions and details how she converted her TR1 from the standard light bulbs to LED bulbs. Read this PDF document in German.
Alfred (Ali) Schneider
posted the following two pages of the Yamaha V-Twin development story in the forum. Below you will find the article in a slightly higher resolution. The article is from the YamahaNews from 1981, issue No. 4.
You will find all YamahaNews issues (English language only) from 1966 - 2009 here. The introduction of all 1981 models (including the TR1) is in issue No. 3 from 1981.
2 images
Added January 2017
Kevin Emery
pointed me to instructions from Robert Lincoln about how to use XS650 wheels for a TR1/XV920.
Check Robert's bike at the Gallery (scroll down a little bit):
3 images
Added September 2016
Many thanks to Thomas Wulff (popeye) for some information (unfortunately in Japanese) about the "small TR1", a mixture of TR1, XV920 and XV750. In Bavaria we call such a beast "Wolpertinger" ;-) Read this PDF document. Added July 2015
As well many thanks to Reinhard Utzel (old mail from 2007) for a cheap method to fix the starter. Read this PDF document in German.
 |
Here is a link to the official Yamaha Part's Catalog.
There you'll find the part's listings for all the XV920* models. You might need to click on the "Proceed to Parts Catalog" button! |
A list of Yamaha XV models with there identification codes and frame numbers is
here
.
This was taken from the
Haynes XV V-Twins manual
. Thanks to Pekka Hamalainen for the scans.
An easy method to enhance your start behaviour by modifing your starter bushing / release sleeve . Found this tip here. Added June 2021
Wilfried Voß sent me two pages with all the TR1 inspection tasks
and all the technical data and filling quantities
(manufacturing year 1983).
Here are the tasks
and the
data
for the manufacturing year 1982.
Anja Dannhäuser sent me great instructions how to add air support for the front fork. Added December 2021
Lutz Kieslich sent me some official documents from Mitsui (=Yamaha) Germany:
- Reduction to 50 H.P. - Page 2
- Reverse back to 70 H.P.
- Usage of a different Handle Bar
- Inclination of Front Brake Master Cylinder
(I do not take any responsibility for the correctness and originality of any of this documents!)
Lutz also sent me 10 pages with instructions from Yamaha Germany (in German) how to replace the cylinder head gaskets:
5 images
5 images
Here are some miscellaneous technical links and sites:
- Emil Schwarz - Precision parts for motorcycles
- JBM Industries - diaphragms for TR1 and more
Here are the links to the Technik Info (German) and
Technical Info (English). Many thanks to
Klaus Lauth
for the translation.
Please note, that the pages are not converted yet to the new layout and therefore open in a new tab or window!
A description which helps with many starter problems from Eppo Karsijns can be found here.
Please note, that the pages are not converted yet to the new layout and therefore open in a new tab or window!
Thanks to Lutz Kieslich for an alternative and cheap method for carburetor synchronization here in English and here in German.
Please note, that the pages are not converted yet to the new layout and therefore open in a new tab or window!
