Big bore klx clutch springs
#1
03-29-2018, 04:11 PM
Join Date: Jun 2008
Location: So Cal
Posts: 1,355
Big bore klx clutch springs
You tube mr duhfactor has videos on his klx build up ‘katsumi’ is the name of his klx. One deals with a slipping clutch after big bore installation. Barnett part # 501-40-06017, they are 38# springs vs 25# stock springs.
Last edited by RaceGass; 03-29-2018 at 04:14 PM.
#4
03-30-2018, 03:06 PM
I have used the Barnett springs with my BB331 and have been real pleased.
More the reason for my posting is the side note that when I installed the complete Barnett Kevlar clutch, using their frictions, plates and springs, I was experiencing a bit of squeal or howl when I needed to slip or modulate the clutch in soft stuff or dicey slow terrain. Has anyone else experienced this with the Kevlar frictions?
The details. I installed the Barnett kit just prior to running the IDBDR. It was real hot and we were running long hours in the seat, though not much clutch work at all. At that time, I was running my normal Rotella T6 15w/40. Prior to installation, I soaked the frictions in oil overnight. Upon returning from the trip, I drained the oil and put the ol' reliable Castrol GTX 10/40 and still experienced what sounded like a dry clutch squeal. I really sounds like your bike is screwed up when in town and leave a stop light. Pulled the clutch apart and ran a Scotchbrite pad over the frictions although there was no obvious glazing on the surfaces at all. Back together with fresh Valvoline 4-stroke 10/40 (had some around), same results.
Currently have the expensive Barnett frictions and plates on the shelf, and am running a $50 EBC Dirt Racer kit with the Barnett springs - works!
FYI and curious if anyone else has encountered this? Does the KLX motor feed less oil to the oil-bathed clutch than other motors?
TC
More the reason for my posting is the side note that when I installed the complete Barnett Kevlar clutch, using their frictions, plates and springs, I was experiencing a bit of squeal or howl when I needed to slip or modulate the clutch in soft stuff or dicey slow terrain. Has anyone else experienced this with the Kevlar frictions?
The details. I installed the Barnett kit just prior to running the IDBDR. It was real hot and we were running long hours in the seat, though not much clutch work at all. At that time, I was running my normal Rotella T6 15w/40. Prior to installation, I soaked the frictions in oil overnight. Upon returning from the trip, I drained the oil and put the ol' reliable Castrol GTX 10/40 and still experienced what sounded like a dry clutch squeal. I really sounds like your bike is screwed up when in town and leave a stop light. Pulled the clutch apart and ran a Scotchbrite pad over the frictions although there was no obvious glazing on the surfaces at all. Back together with fresh Valvoline 4-stroke 10/40 (had some around), same results.
Currently have the expensive Barnett frictions and plates on the shelf, and am running a $50 EBC Dirt Racer kit with the Barnett springs - works!
FYI and curious if anyone else has encountered this? Does the KLX motor feed less oil to the oil-bathed clutch than other motors?
TC
#5
03-30-2018, 03:54 PM
Join Date: Jun 2008
Location: So Cal
Posts: 1,355
I have used the ebc dirt digger clutch kit (springs and fiber plates) with mixed results . The plates worked fine but the springs seemed to go soft after a short time. Then I used Barnett spring kit 501-40-06043 which lasted but still slips slightly on the top of 5th n 6th gears. I’m doing 06017 Barnett springs kit on both the klx’s
#6
03-31-2018, 04:11 PM
I'm running three stock and three EBC clutch springs that are for the KTM 950 adventure (the Barnett 501-40-06017 are for the same bike). I also have the EBC dirt rider clutch kit. It seems to work fine however I'm tempted to try all six of the spring for the KTM 950. The engine/oil needs to be up to operating temperature as well (I'm running 10w40).
#7
03-31-2018, 05:21 PM
Join Date: Jun 2008
Location: So Cal
Posts: 1,355
#8
03-31-2018, 05:34 PM
Join Date: Jun 2008
Location: So Cal
Posts: 1,355
The klx250s mounting kit arrived from Scotts performance. So i scavenged the extra Scotts stabilizer off the non running ‘07 te450 Husky. Gonna let my friend run it till she finds a deal on one.
She took the bike this weekend to ride, so next week when I get the bike back I’ll install it.
#9
03-31-2018, 05:36 PM
Join Date: Jun 2008
Location: So Cal
Posts: 1,355
I'm running three stock and three EBC clutch springs that are for the KTM 950 adventure (the Barnett 501-40-06017 are for the same bike). I also have the EBC dirt rider clutch kit. It seems to work fine however I'm tempted to try all six of the spring for the KTM 950. The engine/oil needs to be up to operating temperature as well (I'm running 10w40).
#10
03-31-2018, 05:42 PM
Join Date: Jun 2008
Location: So Cal
Posts: 1,355
I have used the Barnett springs with my BB331 and have been real pleased.
More the reason for my posting is the side note that when I installed the complete Barnett Kevlar clutch, using their frictions, plates and springs, I was experiencing a bit of squeal or howl when I needed to slip or modulate the clutch in soft stuff or dicey slow terrain. Has anyone else experienced this with the Kevlar frictions?
The details. I installed the Barnett kit just prior to running the IDBDR. It was real hot and we were running long hours in the seat, though not much clutch work at all. At that time, I was running my normal Rotella T6 15w/40. Prior to installation, I soaked the frictions in oil overnight. Upon returning from the trip, I drained the oil and put the ol' reliable Castrol GTX 10/40 and still experienced what sounded like a dry clutch squeal. I really sounds like your bike is screwed up when in town and leave a stop light. Pulled the clutch apart and ran a Scotchbrite pad over the frictions although there was no obvious glazing on the surfaces at all. Back together with fresh Valvoline 4-stroke 10/40 (had some around), same results.
Currently have the expensive Barnett frictions and plates on the shelf, and am running a $50 EBC Dirt Racer kit with the Barnett springs - works!
FYI and curious if anyone else has encountered this? Does the KLX motor feed less oil to the oil-bathed clutch than other motors?
TC
More the reason for my posting is the side note that when I installed the complete Barnett Kevlar clutch, using their frictions, plates and springs, I was experiencing a bit of squeal or howl when I needed to slip or modulate the clutch in soft stuff or dicey slow terrain. Has anyone else experienced this with the Kevlar frictions?
The details. I installed the Barnett kit just prior to running the IDBDR. It was real hot and we were running long hours in the seat, though not much clutch work at all. At that time, I was running my normal Rotella T6 15w/40. Prior to installation, I soaked the frictions in oil overnight. Upon returning from the trip, I drained the oil and put the ol' reliable Castrol GTX 10/40 and still experienced what sounded like a dry clutch squeal. I really sounds like your bike is screwed up when in town and leave a stop light. Pulled the clutch apart and ran a Scotchbrite pad over the frictions although there was no obvious glazing on the surfaces at all. Back together with fresh Valvoline 4-stroke 10/40 (had some around), same results.
Currently have the expensive Barnett frictions and plates on the shelf, and am running a $50 EBC Dirt Racer kit with the Barnett springs - works!
FYI and curious if anyone else has encountered this? Does the KLX motor feed less oil to the oil-bathed clutch than other motors?
TC
i have used a barnett clutch kit and heard that squeal you mention. I think it went away with use. Cause I don’t remember going back in and replacing them right after installing.
i haven’t heard any one posting on clutch oiling issues.xr650 owners racing Baja would drill the fingers on the clutch basket to improve oil flow to the plates to help cool the clutch plates. But I haven’t thought this bike needs that just springs
Last edited by RaceGass; 03-31-2018 at 05:49 PM.