1994 Ducati M900 Monster Page

15 Jan 2015 | Author: | Comments Off on 1994 Ducati M900 Monster Page
Ducati 900 Monster Solo

1994 Ducati M900 Monster

This 1994 M900 Monster is shown with Corbin seat, stock mufflers, KN Stage II carb kit, KN open airbox and filter, Bitubo steering damper, ClearView windshield, misc. carbon fibre bits, RKA tank/saddle bags, and Traveler’s Club duffel bag. I rode and tent camped all over East Tennessee, western North Carolina, southeastern Kentucky, and north Georgia. Around 2006 I sold this bike to a fellow in South Carolina.

I hope he has a much fun with it as I did.

Spark Plugs

I tried the NGK DCPR8EIX Iridium plugs. They worked OK for about the first 100 miles, but then the rear plug sooted up and started misfiring. I got the same results with a wider than normal gap and with a spec gap.


I used to run Dunlop 205s but now I’m trying Michelin Pilots to see if I get longer wear.

Disabling the Coasting Enrichener Circuit or the Anti-Backfire Valve

Dave Mordecai recommended this modification to me, and it works well on my 1994 M900 with 38mm Mikuni BDST carbs. To eliminate the abrupt throttle cut-off when decelerating and to make the throttle modulate better off idle, disable Mikuni’s Coasting Enrichener Circuit in the carb. (Note: read the entire carb section of the M900 shop manual — these carbs are complex.)

Follow Scott Nelson’s instructions to get to where you can remove the diaphragm covers off the carbs. Next perform Dave Mordecai’s modification:

Remove the carb diaphragm covers.

Remove the 1.4 Pilot Air Jets under the diaphragms.

Ducati 900 Monster Solo
Ducati 900 Monster Solo

Remove the .60 Pilot Air Jets in the carb intake and replace them with the 1.4 jets from under the diaphragm.

Solder the .60 jets closed and install them where the 1.4 jets were under the diaphragms. I found some 4mm Allen set screws that I used to replace the jets rather than soldering them closed.

Put everything back together and readjust the idle.

Lead-filled Handlebars

The stock bars cocked my wrists at a bad angle and were uncomfortable on longer rides. I installed Flanders Harley XR750 style bars. Flanders also supplied me with longer steel braided brake and clutch lines and a longer throttle cable. Juan and the folks at Flanders were very helpful. These bars are much more comfortable.

One problem I have discovered is that it was necessary to file down the small dimple on the light switch and starter switch that fits into the small locating holes drilled into the stock bars. Don’t overtighten the starter switch or it will stay ON.

To reduce vibration, I inserted a bicycle innertube through the handlebars, then filled it with sand in the middle section and lead shot on the outer sections. Tie off the ends of the innertube and tuck them back in the bars. This lowers the natural frequency of the bars.

Ducati 900 Monster Solo
Ducati 900 Monster Solo
Ducati 900 Monster Solo
Ducati 900 Monster Solo
Ducati 900 Monster Solo

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