OKO Carburetor Parts and Accessories for sale

OKO K-101 Clear or Metal Foat Bowl

OKO offers this clear float bowl for the K-101 series so you can easily check the float level, or see if any dirt or water has accumulated in the bowl. It attaches with four screws (incuded). It does not have the bottom nut for access to the main jet. This may be purchased by itself or with a K-101 Carburetor kit. Click on the "options" when ordering. Both clear and metal bowls come with the gasket

We have three kits for adapting flange mount manifolds for spigot mount carburetors and one sleeve for spigot to spigot mount. #1 has 2" or 51mm bolt center spacing and is for 34-35mm carburetor spigots. #2 has 60mm bolt center spacing and is also for 34-35mm carburetor spigots. #3 has 60mm bolt center spacing and is for 40-42mm spigots. #4 sleeve is for 33 to 35mm spigots and #5 sleeve is 39mm ID on one end and 33mm on the other. We also have a couple of larger sleeves. contact us for availability.

Manifold Adapter Kits

K-101 Gaskets and Sets

This universal throttle cable kit from Venhill comes with everything needed to create your own custom throttle cable. Outer housing and wire are over 4' long with an array of fittings. Slide end is already attached and a solderless throttle end is included

K-101 Needles

We carry several Needles for the K-101 series. The stock needles for the various sizes from 30mm to 21 are available. Note: To date, we have used the 28mm, JJH needle for all applications from 19 to 28mm. We suggest you try the JJH if you find the stock needle has too much taper, giving a rich mixture towards 3/4 throttle.

Main Jets

Select or tell us the size you need. You can adjust the quantity at Check out.

Slow Jets

Select or tell us the size you need. You can adjust the quantity at Check out.

Curved Top, Straight Top, or Gasket

This curved top for the K-101 is sometimes the answer to limited space above the carburetor. It uses slightly more free cable than the straight top.

Domino and Emgo Throttles

There are three replacable rubber gaskets in the K-101 Carburetors. One is for the float bowl, another is for the float bowl drain plug, and the third is for the jet block. These are a good set of spares to have on hand.

Note: OKO has thickened the jet block gasket, eliminating early leakage problems of air and/or fuel from the float bowl. A good seal here is imperative to get your OKO properly dialed in.

We offer the Domino "Slow" and "Fast" throttles, as well as an

Emgo "Faster" throttle.

Parts and Accessories

Venhill Universal Throttle Cable

Electrex World Electronic Ignition Kits

We now offer Electrex World electronic ignition kits for several Trials motorcycles as well as other bikes. These are made in the UK and are of very good quality. We can supply them for BSA, Bultaco, Fantic, Triumph and Yamaha Trials bikes as well as others. Prices for Bultaco and Yamaha kits start at $315.00 without the lighting coil and $365 with the lighting coil. When a new flywheel is supplied, as with the Montesa cota 348 system, cost is typically about $50 more. Call for availability and prices of other kits.

Call Roger at 410-635-6722 or 443-821-6154.

12mm Petcocks

These have 12mm by 1.5mm threads and are used on many Spanish bikes as well as other European bikes. We carry two versions, horizontal outlet and vertical outlet. choose which you would like from the drop-down box

Needle Shims

Often, the best needle clip position is between notches, so we offer this five pack of shims. One shim sets the needle height half way between notches

K-101 Main Jet Holders

There are Two Main Jet Holder, Emulsion Tubes. 21mm & 24mm use the 18 hole.

26mm-30mm use the 8 hole.

We carry and sell virtually every part for the K100 series of OKO carburetors. Parts for the larger K-104 series though not yet listed here, are all available available. K-104s do use the same air screw and pull choke. Also, Keihin's 28mm PWK can use most of OKO's parts, excluding the slide, the idle screw and the needle jet. Order K-100 parts just below this text. Accessories are listed below parts

Venhill Universal Clutch/Brake Cable

This universal cable kit from Venhill comes with everything needed to create your own custom front brake or clutch cable. Outer housing and wire are over 4' long with an array of fittings. Lever end fits three hole sizes and comes with an eight mm set screw barrel for the other end.

Heat Block

Used on Many Spanish and British bikes that had AMAL MKI Concentric carburetors. They are 10mm thick and the bolt holes are 2" on centers, made for 5/16" or 8mm bolts.

Needle Jets

We have needle jets for all

K-101 carburetors, from 19mm to 30mm. Select the size from the drop-down box.

We have slow or pilot jet sizes in stock from 30 to 70+. Examples of popular sizes are:

35,38,40,42,45,48,50,52,55,58,60,62,65,68,70...

We have main jets in stock from 90 to 180.

Examples of popular sizes are:

100,103,107,110,112,115,118,120,122,125,130,135,

138,140,142,145,148,150,152,155,158,160,162,165

Trials Shocks

We carry two types of Betor Gas Trials shocks, Expert and Pro. Expert shown to the left, the Pro shocks are aluminum bodied with threaded spring adjustment, rather than circlips, as on the Expert shocks. These both come in lengths from 330mm to 400mm with spring rates of either 40 or 50 pounds. Cost of the Expert shocks is $200.00 including shipping and cost of the Pro shocks is $275 including shipping. These are special order due to the number of sizes. Shipment usually takes about a week.

Visu Filter and Kits

Select the Visu Filter and/or

1/4" Tygon Fuel Hose per foot

Renthal Trials Bars

We carry Renthal Trials Bars in various "rises" up to 6". We don't always have these in stock, but it just takes about a week to get here from the UK. These cost $20 to ship so we offer a shipped price and a picked up price.

Alloy Levers

We have Doherty Alloy Levers and Shorty Alloy Levers, both for 7/8th inch bars. The Doherty are full length with larger cable end holes typically found on Spanish and British Trials bikes. The Shorty Levers have a smaller cable end hole that is typical for Japanese bikes like Yamaha.

Choke or Decompressor Levers

We have a Domino lever and a Venhill, British style lever for use with our cable operated choke or to use as a decompression lever.

We are offering two different air filters for the K-101 series (19mm-30mm), and one for the K-104 series (32mm-40mm). We have the UNI 2-stage foam filter for the K-101s and K-104s and we have a K&N style filter for the K-101 series. Select the air filter you want from the drop-down list.