Triumphrat

Short TORs, re-jet, remove AI, K&N, remove snorkel

All of the above... Installed short TORs, rejetted to 125, removed AI, removed top snorkel and replaced with Polaris velocity intake referenced elsewhere on this site, replaced air filter with K&N... All on 08' America... Wow - Really woke the 865 up! No popping on the quick rev, nice mellow burble when downshifting. Well worth the effort and $

Wiring Diagram - America

Hi All, In the process of fitting an alarm to my 06 America Bonne'. Does anyone know where to get a copy of the ignition system wiring diagram?

Straight Pipes for "SpeedMaster"

Lookiing for a set of Straight Pipes for my 2007 Speedmmaster, Factory pipes are too quiet.
If you know of a solution please email me - artm@segnow.com
Many thanks
Art

Can I re-gear my Bonneville 790

I am wondering if there is any way to re-gear a bonneville 790? I have done a uni air filter with new straight pipes and all conversions to make it faster. She seems like she's got allot in her, but shifts quickly and is 5th gear by 45mph, I feel if there is a way to re-gear, I can just ride comfortable at higher speeds than feeling like Im revving it out. Thanks for your help.

Quieter D&D'S Slip On Exhausts

This info was sent to me by another member (FattRat) but I'll pass it on for everybody.

How to make your extremely loud and raspy D&D'S quieter.

1) remove the baffle from the can.

2) cut all the original packing off and throw it away.

3) get fiberglass exhaust packing material.

4) pack the baffle looser and use wire to hold the fiberglass in place.

5) replace the baffle in the can.

6) repeat steps for the other baffle.

7) the new tone is more mellow and quieter.... [Read More]

Handlebar Installation - Scrambler

I installed new handlebars on my 2006 Scrambler for a better riding position and improved comfort at speed. Purchased a set of Bikemaster European chrome bars from azmotorsports.com for $17 US over the web

Here are tips on the installation and pictures

1. Cover the tank and headlight with blankets or towels to protect paint
2. Remove mirrors
3. Remove switchgear, clutch lever, and brake master cylinder from handlebar. Rest master cylinder upright on (protected) headlight
... [Read More]

Bonneville Rear Wheel Spoke Load-Deflection Evaluation-With Update

Broken spokes on the Bonneville, T100, and Thruxton spoked wheels have led to concerns about how the wheels were designed. I spent way too much time and money and used the skills I learned in 35 years as a rocket scientist to do a computer simulation of how the wheels actually work, based on test data of real spokes tested in the real wheel geometry. The results, conclusions, and what it means to us riders can be found at:

... [Read More]

Scrambler Mini-Speedometer (and Desert Bars) Retrofit

I think Triumph did a lot of things right on the Scrambler but the speedometer/handlebar clamp combo is a sore spot in my eyes. D9 has been designing and fabricating some incredibly beautiful speedo/tach/ignition mounts using the 2 ¼” diameter mini-gauges but did/does not have a solution for the Scrambler’s speedo pod. I liked the idea of getting rid of the entire pod so the mini-speedometer sold on www.mikesxs.net with the incorporated LED idiot lights was perfect. I used par... [Read More]

Uzidzits, Bonneville, suspension, Linear spring rates. and interchangability

The Suzuki SV650 1999-2007 models, use the same fork springs (basic diameter and length) as the Bonneville, and Thruxton of all model years:

The correct spring rates for street riding based on riders wt.*:
Stock spring rate .75 kg/mm this is correct for a 60lb. rider!
80 lb. rider the rate is .80kg/mm
115 lb. rider the rate is .85kg/mm
150 lb. rider the rate is .90kg/mm
180 lb. rider the rate is .95kg/mm
215 lb. rider the rate is 1.0kg/mm
250 lb. rider the rate is 1.05kg/mm
280 lb. ri... [Read More]

Valve Adjustments for the Thruxton 900

Here is a how to on replacing valve shims for your parallel twin motor:

http://www.triumphrat.net/club-cafe/...ve+adjustments

Jeremy

Polishing your Thruxton on your own

Here is a link to what you need to know for polishing your bike on your own:

http://www.triumphrat.net/club-cafe/...et-covers.html


Jeremy

Sundry Twin Mod & Tweak Items

It seems that many of us are encountering problems with our side stand switches. Often, we may have to put up with running the risk of either grounding out on the side stand (having jumped the side stand switch at the connector behind the left side panel) or riding around with the neutral light on permanently (after bypassing the neutral switch instead). It’s not always clear where the fault may lie until the circuit is tested, though the chances are the side stand switch itself will be the... [Read More]

Twin Tweak Links

The following are links to posts mainly in the Twin Talk area of the forum and to a few other sites* detailing (occasionally step-by-step) various hints, tips and alternative parts for the maintenance of Hinckley Bonnevilles, Bonneville Americas, Speedmasters, Thruxtons and Scramblers.

__________________________________________________ ______________

Names cited are t... [Read More]

Twin Mod Links

The following are links to posts mainly in the Twin Talk area of the forum and to a few other sites* showing (occasionally step-by-step) instructions for various modifications to Hinckley Bonnevilles, Bonneville Americas, Speedmasters, Thruxtons and Scramblers.


Names cited are those of the authors... [Read More]

How to add a lighting switch to the triumph twins

I have designed a simple and cheap method of adding a lighting switch to control all the lighting requirements of a Bonneville or America/Speedmaster.
See attached documents.

Bonneville interchangeable parts

Starting a list of interchangeable bits for the Bonnie...

Brakes: EBC Pro-Lite floating rotor

• Pro-Lite front rotor MD601LS
• Rear Pads FA2142HH
• front pads FA196HH
• Rear rotor search Bike Bandit for aftermarket rotor for 02 bonnie and the solid rear will show up

Oil Filters: Source 1,Source 2

• NAPA 1358
• Wix 51358
• Baldwin B1400
• Fram Ph6017a
• Hastings LF113
• A/C PF2135
• Purolator ML1681

... [Read More]

Triumph Twins Torque Specs (PDF)

Here's the torque specs document in PDF format for all modern Bonnevilles, T100s, Bonneville Americas, and Speedmasters.

Created by bonnyusa (http://www.bonnevilleamerica.com)

Removing Baffles - Triumph Bonneville

A frequently asked question about Bonnevilles/T100s is how can I modify my stock mufflers (silencers)? Here are the instructions for removing the rear baffles, drilling the remaining baffles and rejetting tips. Bill T100 initially gave me the instructions and I have added to them based on my and others experiences.

Tools needed:

1 ¼ “ metal hole saw (choose a good one)
Minimum 8” long ¼” metal drill bit
Preferred: ½ in drive drill

The rear baffle is held in place by a rear flange and an inn... [Read More]