Ducati Monster Forum

Moto Board => Tech => Topic started by: johnw138 on July 22, 2014, 03:24:44 AM

Title: FCR throttle cable issues
Post by: johnw138 on July 22, 2014, 03:24:44 AM
Hi , new member from Sweden checking in.

I got a pair of FCR41s fitted to my M900-93, but i havent been able to enjoy them and summer is passing by fast!
The throttlecable gets stuck ...

Can someone supply some pictures of the throttlecable routing and the throttlehousings position on the handlebar?

Thanks a lot!
Title: Re: FCR throttle cable issues
Post by: memper on July 22, 2014, 11:23:24 AM
My fcr throttle housing position has them under the bars. They then pass across to the left side of the bike where the connect to the carbs.
Make sure the path is a smooth curve and not binding. And make sure the "pull" cable opens the throttle and not the other way around.
Title: Re: FCR throttle cable issues
Post by: ChrisK on July 22, 2014, 11:30:17 AM
Also, if I remember correctly, you have to cut a notch out of your OEM air box for clearance around the the area where the throttle cables attach to the carbs. I think the carbs have a sort of guard over that area, but I suppose it's a possibility that your air box would be preventing proper acting of the throttle.
Title: Re: FCR throttle cable issues
Post by: koko64 on July 22, 2014, 02:37:33 PM
Also are you using both cables? Even after careful routing of the cables I have to use both to avoid the throttle jammimg open. My friend with 900SS  only uses one cable and it never jams open. I think the Monster is a tighter fit for the cables. The return cable is good insurance on a slide carb.

Welcome to the forum. Introduce yourself in the introductions section. Cheers.
Title: Re: FCR throttle cable issues
Post by: johnw138 on July 24, 2014, 01:35:10 PM
Yes, i am using both cables, the airbox is not an issue since im using K&N Pods.
I guess its just trail and error, try out different routes and be patient. Thanks for your fast replys!
Title: Re: FCR throttle cable issues
Post by: ChrisK on July 24, 2014, 02:24:39 PM
Another silly option I just thought of, is your grip slid too far up your throttle assembly? Many times there is a thin plastic washer in between the grip and the switch housing to the left of it, but if that's not there and your rubber grip is snagging that switch housing, it might feel like a sticking throttle cable.
Title: Re: FCR throttle cable issues
Post by: koko64 on July 24, 2014, 03:29:55 PM
Good thinking Chris [thumbsup].
Happens more than you would reckon.
Title: Re: FCR throttle cable issues
Post by: memper on July 25, 2014, 09:53:57 AM
OP- please define "stuck" for us. Does it open and then get stuck or does it not even open and is stuck right away?
Title: Re: FCR throttle cable issues
Post by: koko64 on July 25, 2014, 10:35:56 AM
Good point. The latter can be improper position of the throttle barrel in the throttle clamp housing.
Title: Re: FCR throttle cable issues
Post by: johnw138 on July 26, 2014, 03:04:05 AM
I think its mainly a routing issue. I have read about the motionpro housing and it being a bit tricky to get right,
a common problem seems to be overtightening. I actually managed to get a position where the throttle snapped back,
but then the brakeassembly wouldnt fit right ... [bang]

Would love some pictures of proper routing in detail, from carbs to handlebar. Thanks for the input guys

Title: Re: FCR throttle cable issues
Post by: johnw138 on August 02, 2014, 02:18:59 AM
So this is what it looks like.

(http://i1133.photobucket.com/albums/m593/johnw138/IMG_3659_zps6f93f57e.jpg)

(http://i1133.photobucket.com/albums/m593/johnw138/IMG_3660_zpsc7bc88b3.jpg)
Title: Re: FCR throttle cable issues
Post by: Speeddog on August 02, 2014, 01:18:46 PM
That routing is the same as what I've got on my M750, and it works.

There's a couple issues on the MotionPro throttle that may be culprits.

The throttle tube is a bit short, so some grips will extend over the end, and drag on the bar.

Or, if they're all the way on, the grip flange is forced up against the throttle, and drags.
Additionally, there's some roughness on the casting edge that drags more.
I ran into that on mine, I smoothed off the casting, and made a plastic ring to go around the throttle tube, sitting between the grip flange and the throttle.
Title: Re: FCR throttle cable issues
Post by: johnw138 on August 03, 2014, 02:36:42 PM
Thanks a lot speeddog! I will adress what you mentioned. Im actually quite surprised about the quality of the motion pro housing.
It feels cheap and and the fitment isnt 100%.