09-16-2016, 09:10 AM | #1 |
Join Date: Jun 2016
Location: Arlington, VA
Posts: 258
|
TT250 CG Motor Clutch
Why does the clutch on my TT250 feel so pathetic. Forget about fanning it or giving it any abuse, it just chatters and slips. Is this a result of building a 230cc motor around a clutch designed for a 125? Are there some decent japanese/honda clutch plates and springs that can beef it up? Is the basket strong?
Just to continue this rant, the transmission doesn't shift as cleanly as a japanese transmission would. Should I just STFU and live with my bargain chinese ride? |
|
09-16-2016, 09:36 AM | #2 |
Join Date: Feb 2016
Location: NY
Posts: 175
|
Mine chatters when starting out in first gear all of a sudden, does not feel how it did when I first got it, starting to get a little concerned myself actually. All the other gears feel OK but there is a noticeable chatter/clunk when starting from a dead stop now.
__________________
2005 CBR600RR
2016 CSC TT250 Coming Soon |
|
09-16-2016, 09:51 AM | #3 | |
Join Date: Mar 2010
Location: Volcano, Ca
Posts: 7,112
|
Quote:
How many miles do you have on it? What oil are you running? My CG clutches have been pretty particular to the oil it drinks. 15W-40 diesel is always a good choice. I'm a big proponent of synthetic but the CG's seem to actually like dino oil better. The clutch quits chattering. You'll also need to change the oil quite frequently in the first 2500 miles or so. When it starts to chatter, change it. It's only a quart. It will get better with miles too.
__________________
"Light a fire for a man, and you heat him for a day. Light a man on fire, and you heat him for the rest of his life." 2007 Suzuki DRZ400S (SM convert) 2009 Q Link XP 200 1967 BSA B25 250cc Starfire 2022 Royal Enfield Interceptor 650 2023 Royal Enfield Scram 411 1948 Royal Enfield Model G 350 |
|
|
09-16-2016, 10:01 AM | #4 |
Join Date: Jun 2016
Location: Arlington, VA
Posts: 258
|
I went with 15-50 synth on my first change. I'll switch back to Rotella or Valvoline non-synth for the next one. Have about 500 miles on her...
|
|
09-16-2016, 11:01 AM | #6 |
Join Date: Jun 2015
Location: Weston, CO & Sangre de Cristos
Posts: 240
|
I do have a bit of chatter as well in first gear only from a stop and gets grabby, not smooth. No issues with chatter in other gears. Generally only when the bike is hot. Get's a bit harder to shift when at times when hot as well. Adjusting the clutch cable seems to mostly cure the issue. I think since the clutch cable runs down by the exhaust it tends to get quite warm and sloppy causing the chatter.
I've got 1400+ kilo-miles and another 100 or so actual miles on the new tach cluster. Running Rotella 15-40 non synthetic (what I've used in my KLR for years with no issues) and on my third oil change. Good point on the engine mounting bolts Mudflap. There is certainly noise from the clutch. Rojo
__________________
'15 RX3 (Rojo's) '15 RX3 (marzhere's) '16 TT250 |
|
09-16-2016, 11:51 AM | #7 |
Join Date: Mar 2009
Location: Sardis, BC, Canada
Posts: 25,977
|
There is no noticeable chatter on my Lifan, which uses a similar motor and identical clutch. Ensure that the cable is properly lubricated (I like Maxima Chain Wax on cables) and take the time to adjust the cable properly.
__________________
Weldangrind "I figure I'm well-prepared for coping with a bike that comes from the factory with unresolved issues and that rewards the self-reliant owner." - Buccaneer |
|
09-16-2016, 11:53 AM | #8 | |
Join Date: Feb 2016
Location: NY
Posts: 175
|
Quote:
As Rojo said it is more prevalent when the engine is hot and in our case only from a stop in first gear. Even after my oil change it has remained.
__________________
2005 CBR600RR
2016 CSC TT250 Coming Soon |
|
|
09-16-2016, 12:00 PM | #9 |
Join Date: Dec 2015
Location: CO
Posts: 1,525
|
What type of Carb and settings (jets, needle clip, etc.) do you currently have? Sprocket sizes? Clutch Freeplay Set? Valves adjusted recently?
Would be a few questions I would ask to help narrow down if it's a "Power Delivery / Chatter issue" or an actual "Clutch / Spring / Chatter" problem
__________________
"Think as you like... but this self proclaimed Professor is always right" - Buckshot "You never know what someone is hiding beneath their smile..." - NinjaTom - R.I.P. |
|
09-16-2016, 12:02 PM | #10 |
Join Date: Jun 2016
Location: Colorado
Posts: 1,107
|
This could be your problem. What was the oil you used?
|
|
09-16-2016, 12:11 PM | #11 |
Join Date: May 2016
Location: Hacienda Heights, Ca
Posts: 281
|
Mine is perfectly smooth, both clutch and trans. I even start out in 2nd frequently as 1st is so short it's pointless unless I need to jump off the line quickly. But my mileage is much lower than yours so maybe it's just a new thing.
Make sure nothing's loose or tweaked; engine mounting, sprockets, etc. It could be the oil too. I've had lots of bikes and some of them are pickier than others. I've even found where two different bikes of the same model have different preferences. |
|
09-16-2016, 01:46 PM | #13 |
Join Date: Mar 2010
Location: Volcano, Ca
Posts: 7,112
|
Mrs. 2LZ does it on occasion from a start but only after it's sat for days at a time. Q and the RX3 have done it also. Q, not so much. I put in some other oil (can't remember right now), it squealed and chattered a little, so I drained it out right away and put in the 15W-40. Problem solved.
Seems all three have done it after it's sat for a while. My X-Moto would jump and stall when I put it in gear after sitting for a few weeks or a month but once the clutch was broke loose, it was fine.
__________________
"Light a fire for a man, and you heat him for a day. Light a man on fire, and you heat him for the rest of his life." 2007 Suzuki DRZ400S (SM convert) 2009 Q Link XP 200 1967 BSA B25 250cc Starfire 2022 Royal Enfield Interceptor 650 2023 Royal Enfield Scram 411 1948 Royal Enfield Model G 350 |
|
09-16-2016, 04:10 PM | #14 |
Join Date: Jan 2012
Location: ChCh , NZ
Posts: 2,265
|
most clutch chatter is from the fit up of the
plates fiber and/or steel on the clutch basket or hub.. poor machineing with tolances to big... cold motor the oil is thicker so it helps stop/hide the chatter... why some motors will do it & others don't... where the clutch was machined in the production run as machines setting do change , cutters ware etc.. Ie... in a production run of 300 componets yer exspect the first units to have a tighter tolance just after the machines had be set up than the last... also how much care the guy setting the machines takes... Maybe another possabiliy is the amount of lash in the gears between the crank & clutch basket... to much movement can cause the basket fingers to tooth... My XT660 has a anti shudder ring in the clutch stack to stop chattering.. .. ...
__________________
09 XT660R ... 06 TTR250 ... 80 Montesa H6 125 Enduro... 77 Montesa Cota 348 MRR "Malcom Rathnell Replica"... Current resto projects.. 81 Honda CT110... 80 Kawasaki KL250A1... 11 Husaburg TE125 enduro... "sold" along with another 31... Lifan 125 Pitbike.. "stolen" ... KIWI BIKER FORUM...... http://www.kiwibiker.co.nz/forums/content.php All the best offroad rides in NZ... http://www.remotemoto.com/ E-mail... xtpete1@gmail.com |
|
09-16-2016, 07:51 PM | #15 | |
Join Date: Jun 2016
Location: akwesasne, NY-13655
Posts: 2,220
|
Quote:
|
|
|
|
|
|
|