fcr

I have sucumbed and bought an ex 2003 WR 450 fcr39 carb to fit to my 2002 400 FE (Fixermans old bike) and have already hit a stumbling block , I can't seem to find the main air jet ,looking at the diagrams on the Sudco site it should be next to the pilot air jet at the rear of the carb ,but...

How Do You Tell Them Apart? What Measurements Will Determine 37 39 And 41's? Intake Boot End Is 42mm And Cylinder Head End Is 38 I'm Guessing Its A 37?

After many years swearing at, and figuring out to a minor degree, Dellorto carbs, I am now facing an FCR on my 2006 FE450. I know near nothing about it. It works great, except..... when in slow going on tight trails the motor eventually develops a hesitation right off idle, where I like to blast...

Hey.. Have a question if anyone could answer it... we have made a 44mm carb out of a 41mm keihin carb with no tps on. But i have trouble to get it to run properly on low rpms. The big problem is that when i have put in the proper slow jet and turned in the fuel screw properly it idels great...

i know i only have tuned 400 but there are times i'd like the bike to rip and for the back end to move away and help steer. but the bike always opens softly and then fires. perfect for a wet track or infact best traction but not for ripping the earth from under me. does anyone know about...

Why is there a difference in the height of the stop located on what would be the bottom of the fuel pump diaphragm? I recently replaced mine when I put the quick shot cover on as per the directions. And the replacement the local shop had a significantly longer stop than the stock Husaberg...

Had some real problems trying to start my 550 when i fitted my FCR41, goes like this i fitted my carb after building my motor, it was very hard to start and after reading how much better the FCR makes the bergs start i was a bit pissed off, it finely started with a bit of swearing and two messed...

Hi Anyone knows what jeeting to use on this bike?

Here is my reply to an Email regarding a heavy throttle hesitation with one of my Jet Kits. I believe said reply will prove of overall benefit as it is not specific to my product. Hi Giorgio. Completely warm up the engine by riding. Adjust pilot fuel screw plus / minus one turn from...

Linked is a painstakingly time consuming, very well written guide regarding "How To Tune The FCR Carburetor". Read It: http://www.factorypro.com/tech/carbkei.html Eighty year old BB King Do you suppose BB could teach the Blues via the Web? Would owning Lucille allow one to play just...

Lineaweaver Kit Instructions: Remove: Air boot / carburetor inlet bell, float bowl and slide lid Main fuel jet Needle Pilot fuel jet (long skinny jet near the main jet) Pilot air bleed jet (Located under the inlet boot bell, left hand side, viewing carburetor from rear) With the...

I've just got hold of an FCR41 to replace my delorto due to starting problems. Now this came straight off a VOR570 factory supermotard so would be a reasonable bet to at least start, so i could check the set-up. Well this is where it all falls apart for me as usual. She would (eventually!)...

Hello Guys, My name is christos and i come from Greece. To tell you the truth i am not riding a Berg although i would love to. I the Berg 650sm at a test ride in the Motorbike show here in Greece last year and i lost my mind. The bike pulls like a bull! I ride an Lc4 620 sm with some mods on...

Hi all, due to some luck on ebay i've secured myself a 2002 wr426 carb with complete throttle assembly [thats how it was listed no mention of keihin fcr], for a mere £45 of our english pounds i got it all delivered to my front door. All well and good with Taffs brilliant advice in the...

Taffy I know you must be a bit fed up with all this, but could you please tell me some stuff that i need help with please. 1st i have just got a fcr 39 from a yam the later type with hot start, can you give me a part no for the stub that bolts onto the rear for joining carb to air boot 2nd do...

rode a FX470 at the weekend with a dell orto fitted and it was noticeable how strong/violent the thing was from a closed throttle. i just checked an old thread on a race last year and spotted the same comment when i borrowed a FE400e from colin spicer. even the 400 jolted me...

Guys I plan to fit a 41mm Keihin to my '03 FE650 E. It is a standard bike bat the exhaust which is now open. As I want to buy it with basic jeeting that will start me off, anybody out there who can advise baseline setting for jetting, needle etc, etc. Your help much appreciated as always...

here is one i hope dale will help me with: bored out 'scoots' 37mm carb to 41mm and it went ok after i decided to use araldite to bond the two lower chambers. i test rode my FE400e bike and to cut a long story short; the bike wanted to go leaner on the MJ. fine except i went through 150...

Bad News: The minimum order requirement for a production run of metering rods was raised by the manufacturer to that of 500 for which I am unwilling to invest. Quasi Good News: I have hand made ten complete kits and will continue to do small runs for those that are Interested. 39 and...

What sort of money should I be looking to pay for a used FCR 39 flatslide? I plan to change the standard on my FE400 if one crops up for the right money. cheers.