TW200 Forum banner

1 - 13 of 13 Posts

Registered
Joined
363 Posts
Discussion Starter #1
Dear Guys,

I noticed recently (after correctly set up my throttle since it could not reach the full "speed") that if I suddenly accelerate in 2nd-3rd gear by slow speed and turning the throttle to the max sometimes the clutch can slip
I already checked the clutch lever making sure it has the right free play, the clutch is already a new one (changed 1 month ago but I never realized the slipping because the throttle was blocked a bit by a rubber ring as explained before)
So after checking everything yesterday and setting everything correctly I started to notice that if I brutal accelerate it can sometimes slip

I've read online that it could be the oil, which oil do You recommend to put in a Yamaha TW 200 to avoid this kind of problem?
The oilw as changed by the shop that sold me the bike (it's an used one of course) but I am starting to think that he doesn't know very well out beloved TWs

Any suggestion? I live in Italy so I need to find an oil that is available here

Also I've seen a video online where its suggested to avoid synthetic oils because they could land to slippery clutch, insted You should use "natural" oils

Any advice please?
 

Registered
Joined
2,121 Posts
First I would double check the adjustment. The clutch adjustment could be a little off where it is not making total contact. The clutch springs could be worn. In the past when I had a slight clutch slippage issue I used (Lucas Heavy Duty Oil Stabilizer), about 2 or 3 ounces. It is for cars but never hurt my bike. It kind of swells the clutches up a bit. You may have to readjust your clutches afterwards if they grab too good. I changed my original clutch plates and springs out after my valve job at 42000 miles. I now have Barnett clutches.
 

Registered
Joined
363 Posts
Discussion Starter #5
If you can't get it adjusted from the cable, you will need to pull off the right side cover and start in there, adjust it correctly, then do the cable, and then any final little adjustments at the lever.
The cable and lever is already done properly with the right free play etc, it's just when I am going very slow in 2nd-3rd and i burst accelerate directrly to full throttle that it slips
 

Super Moderator
Joined
17,650 Posts
It's all for nothing unless it is correct inside. Take a look at the clutch lever going down into the crankcase and look for a arrow on the lever. Does it line up with a raised line on the case? Both arrow and line on the case are behind the lever. Look closely. If they are off, you have to go inside and start over. Do make sure you have motorcycle wet clutch oil.
The cable and lever is already done properly with the right free play etc, it's just when I am going very slow in 2nd-3rd and i burst accelerate directrly to full throttle that it slips
 

Registered
Joined
363 Posts
Discussion Starter #8
You must have something set up wrong. T dubs don't do anything brutally. Especially accelerate.
I didn't said that the bike accelerate brutally, I said that I accelerate brutally twisting all the throttle at once when in 2nd-3rd and in kinda low speed (it's surprisingly fast at catching speed actually)
 

Registered
Joined
7,051 Posts
Use motorcycle oil. Car oil will make the clutch slip. I ruined two clutches on two different motorcycles using car oil because it was said to be OK to use a certain brand, Shell Rotella oil in motorcycles. It isn't!

You can install washers on the spring to increase the pressure or install heavy duty springs. Heavy duty springs on the left.
PA260151.JPG

Internal clutch adjustment is done with the screw in the center of the pressure plate. If pulling on the clutch lever gets hard as the pointer aligns with the mark it is OK. If it is close that is OK too, this isn't a real fine adjustment. Red arrow points to adjusting screw.

P9260023 (2).JPG P8090023a.jpg clutcha.jpg

Best bet is Barnett Kevlar clutch kit that comes with heavy duty springs. I installed two of them in two different motorcycles and they work great!!!! They cost twice as much as "regular" clutches but are worth it.
clutch parts.jpg
 

Registered
Joined
322 Posts
If the clutch plates are well worn the clutch usually will start to slip in higher gears first.
If it slips in lower gears I'd check the linkage or cable or make sure that everything is disengaging/engaging correctly and not hanging up when you release the lever.
Also make sure you are using motorcycle oil and not a car oil for higher mileage engines as stated above. Synthetic oils are fine just get one for motorcycles.
 

Registered
Joined
316 Posts
I used one quart of Castrol 10w-40 4T synthetic motorcycle oil at my last oil change and couldn't be happier. The clutch is still an ON/OFF proposition, but it does NOT slip when fully engaged.
 
1 - 13 of 13 Posts
Top