IL4 FCR`s

[greenmonster]

Reading about shortage of FCR`s, came to think of my old mod in 2006.

Saw some IL4 FCR quite cheap on the bay, thought "Separating them and make a pair, how hard could it be?"
Famous last words... Buying from a Kwak a set for 450$, sold 2 for 200, but beware of Keihin spares, expensive.







Not so hard to do, actually. Most is obvious from photos, tubes etc.

Some fiddling:
Had one end carb and one middle, had to shut fuel delivery on that, screw and 24h Araldit fixed that.
Throttle axle, "Hmmm, where can I find that?". Answer: Local hardware store had it! "Mustn`t it be perfectly straight and smooth?"
Don't think so, just moves 1/3 rotation, not so sensitive. Seals for it,  l live in SKF hometown, their store has everything you need!
Throttle cables linkage, McGyvering in the shed, not pretty but works!







So, go and get them, Tony!  

[koko64]

Good work Gert! Handy living in SKF Town

I recently got a set from Mukeido. Very expensive but still a grand cheaper than new.

I was using two dirt bike FCRs and ran them with a 2 into 1 throttle, but the throttle pull was giving my arthritis (and other joint condition) hell . I recently sold them.
https://ducatimonsterforum.org/index.php?topic=77926.0

[greenmonster]

Yeah, nice work there Tony.

Main problem w IL4 FCR is that you don't get the correct throttle plates but it doesn't seem to trouble Ducs too much.
If they had the EMT needles l don't remember.

[koko64]

My dirt bike FCRs had leaner slide cutaways so I ran 62.5 pilot jets, the largest I've used, but boy it ran well. Carbs had very unknown needles to me but I had EMT and EMS needles spare. SAJ 11/2 turns, EMT needle #5, 155 mains, IMS 2 turns out. Fuel economy was over 320kms per tank for a thrashed 750. With K&N pods.

My CV carbs are 42.5 pilots, DJ needle #3, Factory Pro springs, IMS 4, 140 main jets. K&N pods. Quick turn single cable throttle. Fuel use is about 270kms per tank. I might try 40 pilots and needle #4 when they come off the bike.

I will try the "new" Ducati FCRs with 60 pilot jets, EMT  needles #5,  SAJ 11/2 turns, 155 main jets and IMS 11/2 turns. K&N pods. I have a "Tokyo Mods" light spring to try too. I'll use quick a turn push/pull throttle to take the pressure off my arthritic wrist. If I dont like how they feel I'll sell them.

[koko64]

How about these Kamna vergasers TDMR40's.

https://www.ducati-kaemna.de/kataloge/ducati/monster-750-900-1000/vergaser-zubehor-carburator-accessories/mikuni-tdmr40-vergaser-kit-fuer-ducati-900-m-ab-1993.html