FCR install Question ?

monsterknut · May 21, 2013, 03:42:36 PM

Im installing new FCR41 carbs on my 94 M900 . The original Mikunis are linked togheter with the oilcooler assembly at two points . Can i just find som fitting screws and block the two holes in the oilcooler system that now are open and will not be used with the FCRs ?

memper · May 21, 2013, 04:30:06 PM

?? The carbs have no connection to the oil cooler.
Perhaps you mean the intake runners? Then yes, those lines get removed and the hole in the runners can be plugged with a bolt and washer.

ducpainter · May 21, 2013, 04:42:02 PM

Quote from: memper on May 21, 2013, 04:30:06 PM
?? The carbs have no connection to the oil cooler.
Perhaps you mean the intake runners? Then yes, those lines get removed and the hole in the runners can be plugged with a bolt and washer.

No...he means the cooler...

some early Monsters had oil heated carbs to try to prevent icing problems. It was a bad idea because in cold weather the oil barely gets hot enough to flow with an oil cooler.

To the OP...

if you can find fittings to plug things from the cooler connections you'll be fine

monsterknut · May 21, 2013, 04:57:45 PM

Thanks Ducpainter

I will try find some fitting bolts tomorrow , and hoping rest of the install of the carbs will go smooth !

memper · May 21, 2013, 07:45:47 PM

Ah. I had no idea. Thanks DP

MotoPsycho · May 22, 2013, 04:05:14 AM

Maybe find a male to male fitting and connect the ends of the hoses together so it doesn't dead head that part of the circuit? Or would the extra oil pressure help with what little bit of oil cooler these bikes have?

Howie · May 22, 2013, 10:13:45 PM

Quote from: GRUBBY on May 22, 2013, 04:05:14 AM
Maybe find a male to male fitting and connect the ends of the hoses together so it doesn't dead head that part of the circuit? Or would the extra oil pressure help with what little bit of oil cooler these bikes have?

No need, Many carbed early Monsters in some markets did not use these lines and later ones used electric heaters.

monsterknut · May 24, 2013, 01:23:06 AM

The solution i ended up with was changing to a new oilcooler line without the open/close tap between engine and cooler , and a blocking bolt
into the oil cooler. The rest of the FCR and Exactfit coils install was problemfree .After some cranking the bike fired up and i took it out for a testride . My first impression is that the bike feels much more powerfull now . It runs fine on low RPM ,and when i twist the throttle the bike instantly responds with impressive punch and a brutal roar . The bike also runs very fine on idle .So far just a big smile and no complaints

I have not yet tested it over the hole range and over a longer time , but im super happy with my new setup so far and havent changed any of the settings made by Chris at CC before delivery and so far i cant point out need for any change in carb settings. My 94 M900 has termi slipons , Kn pods and no airbox
My bike is now much more fun to ride than before , and so far the carb/coils upgrade feels worth every penny spend[thumbsup] My first day with the FCRs was a beautifull hot summerday and startup with cold engine was easier then i expected.Hopefully i will gain some useful experience with the FCRs before the airtemp falls dramaticly and my coldstart skills are up for a test !!

dhealy · May 25, 2013, 03:08:08 PM

I just installed the same coils and carbs on my 95 900 today. Not real happy with it so far. Mid throttle is kind of sputtering. Backfiring when I let off the throttle. Definitely has more power, but I guess I was thinking it was a bolt on and go. I have the same set up(pods and termis). Got them from CA Cycleworks also.

memper · May 26, 2013, 08:06:01 AM

Quote from: dhealy on May 25, 2013, 03:08:08 PM
I just installed the same coils and carbs on my 95 900 today. Not real happy with it so far. Mid throttle is kind of sputtering. Backfiring when I let off the throttle. Definitely has more power, but I guess I was thinking it was a bolt on and go. I have the same set up(pods and termis). Got them from CA Cycleworks also.

Sorry it wasnt so simple for you. But truthfully, youre dealing with one of the major parts responsible for performance and functioning. It has probably hundreds of setting combinations that many folks spend days trying to fine tune. Those that bolt and go a carb are lucky.

dhealy · May 26, 2013, 10:42:53 AM

Would crackling and popping mid throttle be a lean condition? Should I try lowering the needle clips one notch?

memper · May 26, 2013, 12:20:57 PM

Quote from: dhealy on May 26, 2013, 10:42:53 AM
Would crackling and popping mid throttle be a lean condition? Should I try lowering the needle clips one notch?

While on deceleration? Most likely enrichening one of the circuits will rid the popping as it will cool the exhaust temps and reduce the likelihood of re-ignition.
But some popping is fairly normal even on perfectly tuned engines. Go by the appearance of your plugs not the exhaust note.

dhealy · May 26, 2013, 12:39:18 PM

When I hold it at steady throttle 3000-4000 rpm is when it kind of stumbles. The popping is on deceleration.

memper · May 27, 2013, 05:03:28 AM

Quote from: dhealy on May 26, 2013, 12:39:18 PM
When I hold it at steady throttle 3000-4000 rpm is when it kind of stumbles. The popping is on deceleration.

I have a similar problem. Get yourself a bunch of plugs and do some adjustments to your needle. But remember, only change one circuit at a time. If you dont you wont know which adjustment created the change.

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FCR install Question ?