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Gear Shifting Very Difficult

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flyingcbf
Nova Slayer



Joined: 23 Aug 2021
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PostPosted: 20:50 - 25 Apr 2024    Post subject: Reply with quote
I've just done a bit more research on YouTube and two user's have suggested that the last friction plate does not go along with the other plates. It goes to the opposite slot.
I'm strugling to attach photos from Google photos so thanks to 'StinkWheel' for helping me out. I'm going to try again...

I have installed the clutch plates wrong...
https://lh3.googleusercontent.com/pw/AP1GczN9M887jFnMx9JWvsQ1xg3XzLS61lHqVjnSeJqCb3AsZxvcLpOTCRJEU3tThQni6mZHDG_PDVgFYRI9HIq2X1YpQ6i8Xa3awRW2l-WR5pOluVnmtVyZ8oo6ugcmgVER4k-J4OXPdlGndF9SNCJHX_4m=w1215-h911-s-no-gm-no

The correct way is this, so the last clutch plate is installed on the next slot, as in the picture below...

https://lh3.googleusercontent.com/pw/AP1GczOILagQ3Ot8f8ix-odMKIOx1-mOQQqTSpXLVZCCz5Zl1d-YkKJ8KMJwBbw18VWLb7Q7QlND_rm-02Jlk_ryGbtCT-1AS3m5OhEaOKLQK-h_r5Q7MGyeC7NPEJ89PWIgMgpll-54ijQXbZWrrcXKIepY=w942-h522-s-no-gm-no

Notice the last plate is installed in the opposite slot..
____________________
2019 Suzuki V-Strom 250
2020 Cb125F @ 5k miles and going up!

Last edited by flyingcbf on 10:45 - 26 Apr 2024; edited 4 times in total
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Nobby the Bastard
Harley Gaydar



Joined: 16 Aug 2013
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PostPosted: 20:58 - 25 Apr 2024    Post subject: Reply with quote
You are a bit incompetant at pictures. I'm not telling people which one this is.

https://lh3.googleusercontent.com/pw/AP1GczMRnIl6eYqpzy7BZLnlfZRctLiaPbXgJRwdT7cDCNEIPYs-1YAKYNQ2Yns61cMPA0aK-4bYhdO4R-2hhKO89J36EEy976qAXNP5FPTE-n45LPvV1xux2PqZOnM_DH54qWBy6C84EDCSHpVtu0zfe3kw=w1396-h1047-s-no?authuser=0
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trevor saxe-coburg-gotha:"Remember this simple rule - scooters are for men who like to feel the breeze on their huge, flapping cunt lips."
Triumph Sprint ST 1050
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jeffyjeff
World Chat Champion



Joined: 02 May 2020
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PostPosted: 20:59 - 25 Apr 2024    Post subject: Reply with quote
flyingcbf wrote:
....So any suggestion as to where to look? Clutch Friction Plates???

I would start by carefully examining the engine oil, which is shared with the transmission and clutch. Rub some oil between your thumb and forefinger...see if you can discern a loss of lubricity or the presence of debris (clutch plate material). Smell the oil. Can you detect the odor of fuel? Does it smell burnt? Fuel dilution and overheating will cause the engine oil to loose its ability to lubricate. Your problem could be related to a fuel system problem or a faulty oil cooler.

Absent any clues you might discern from the oil, clutch plates are a good place to look. I would mic out the plates individually and measure the stack and check against published specifications. Examine the clutch hub and basket for wear that might impede the clutch plates from free lateral movement. Look for evidence of two clutch plates that might not freely separate. You might consider lightly sanding the friction plates to remove any imperfections that could affect stack height, and to remove glaze that might gum up free plate movement. Upon reassembly, it might be a good idea to mix the plates up from their original locations. Standard practice is to soak the friction plates in oil prior to assembly.
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flyingcbf
Nova Slayer



Joined: 23 Aug 2021
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PostPosted: 08:04 - 26 Apr 2024    Post subject: Reply with quote
jeffyjeff wrote:
flyingcbf wrote:
....So any suggestion as to where to look? Clutch Friction Plates???

I would start by carefully examining the engine oil, which is shared with the transmission and clutch. Rub some oil between your thumb and forefinger...see if you can discern a loss of lubricity or the presence of debris (clutch plate material). Smell the oil. Can you detect the odor of fuel? Does it smell burnt? Fuel dilution and overheating will cause the engine oil to loose its ability to lubricate. Your problem could be related to a fuel system problem or a faulty oil cooler.

Absent any clues you might discern from the oil, clutch plates are a good place to look. I would mic out the plates individually and measure the stack and check against published specifications. Examine the clutch hub and basket for wear that might impede the clutch plates from free lateral movement. Look for evidence of two clutch plates that might not freely separate. You might consider lightly sanding the friction plates to remove any imperfections that could affect stack height, and to remove glaze that might gum up free plate movement. Upon reassembly, it might be a good idea to mix the plates up from their original locations. Standard practice is to soak the friction plates in oil prior to assembly.


Engine oil has just been changed, twice. I did an oil flush.
I'm going to attempt to open her again today weather permitting and check the clutch plates. I'll check the oil too as suggested. Thumbs Up
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2019 Suzuki V-Strom 250
2020 Cb125F @ 5k miles and going up!
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flyingcbf
Nova Slayer



Joined: 23 Aug 2021
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PostPosted: 11:37 - 26 Apr 2024    Post subject: Reply with quote
After watching some videos below,
https://www.youtube.com/watch?v=wblPnGEQgsg
https://www.youtube.com/watch?v=nbr7lL3balg

it seems that the clutch plates in this bike are already correct, so there must be some other underlying issue Sad
____________________
2019 Suzuki V-Strom 250
2020 Cb125F @ 5k miles and going up!
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flyingcbf
Nova Slayer



Joined: 23 Aug 2021
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PostPosted: 10:22 - 08 May 2024    Post subject: Reply with quote
OK, I think I've solved the issue!!!
The problem was with the clutch basket.
It's made of aluminium and over time gets scored with the clutch friction plates. Check the picture.... Notice the 'ridges'?

https://lh3.googleusercontent.com/pw/AP1GczMlrZoMhZVhZzZ1dr-n8obkZEJCuuAWpeOj7IyYOWkNG_5r-CVJlh0NfMbjBEKn4bONUGAtBlLOW1uNTP0DnYjtOq_agZfWEUH01nsR2qYBiSqPePUQ-OfypL_GMyHoXLWUqiRlU_UtL1c0PYYbwWw2=w844-h545-s-no-gm-no

I've had to sand these ridges down with coarse sand paper and then go over it again with a fine sand paper P600. Cleaned off with brake cleaner and then put oil back in.
It's running sweet now for hours on end!!! Very Happy Very Happy Very Happy

Although the other thing I did was also to clean the friction plates with brake cleaner.

I hope this info will help some one out!!! Thumbs Up
____________________
2019 Suzuki V-Strom 250
2020 Cb125F @ 5k miles and going up!
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A100man
World Chat Champion



Joined: 19 Aug 2013
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PostPosted: 11:40 - 08 May 2024    Post subject: Reply with quote
flyingcbf wrote:
OK, I think I've solved the issue!!!
The problem was with the clutch basket.
It's made of aluminium and over time gets scored with the clutch friction plates. Check the picture.... Notice the 'ridges'?

https://lh3.googleusercontent.com/pw/AP1GczMlrZoMhZVhZzZ1dr-n8obkZEJCuuAWpeOj7IyYOWkNG_5r-CVJlh0NfMbjBEKn4bONUGAtBlLOW1uNTP0DnYjtOq_agZfWEUH01nsR2qYBiSqPePUQ-OfypL_GMyHoXLWUqiRlU_UtL1c0PYYbwWw2=w844-h545-s-no-gm-no

I've had to sand these ridges down with coarse sand paper and then go over it again with a fine sand paper P600. Cleaned off with brake cleaner and then put oil back in.
It's running sweet now for hours on end!!! Very Happy Very Happy Very Happy

Although the other thing I did was also to clean the friction plates with brake cleaner.

I hope this info will help some one out!!! Thumbs Up


Congrats, glad you're sorted - see also post # 5 from Stinkwheel.
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flyingcbf
Nova Slayer



Joined: 23 Aug 2021
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PostPosted: 13:39 - 08 May 2024    Post subject: Reply with quote
Yes, stinkwheel really helped out! Thumbs Up
There is one downside to doing this though. I've noticed the sound is little louder and also the bike slighly more 'vibration' if I may say. As there is now less material for the friction plates.
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2019 Suzuki V-Strom 250
2020 Cb125F @ 5k miles and going up!
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pdg
World Chat Champion



Joined: 15 Sep 2012
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PostPosted: 13:51 - 08 May 2024    Post subject: Reply with quote
flyingcbf wrote:
Yes, stinkwheel really helped out! Thumbs Up
There is one downside to doing this though. I've noticed the sound is little louder and also the bike slighly more 'vibration' if I may say. As there is now less material for the friction plates.


You'll likely also find it'll wear quickly again (well, quicker than the first time) as the fingers on the plates now have more room to bang back and forth in the basket...

A new clutch basket would be the 'proper' fix of course, but that costs actual money and may or may not be obtainable.
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Any and all advice given should not be followed - if you have to ask it means you don't know so get a man in to do it for you.
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flyingcbf
Nova Slayer



Joined: 23 Aug 2021
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PostPosted: 14:49 - 08 May 2024    Post subject: Reply with quote
Yes, your right! It will wear faster.
I've been looking at a steel clutch basket online but can't find one anywhere on the net. I think it needs to be machined made somewhere.
____________________
2019 Suzuki V-Strom 250
2020 Cb125F @ 5k miles and going up!
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Old Thread Alert!

The last post was made 1 year, 110 days ago. Instead of replying here, would creating a new thread be more useful?
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