@az_slynch avatar
UTC

Molto Verboso
'07 GTS250, '07 LX150, '81 P200E, '78 P200E, '74 VBC1, '64 V90 and 3 Ciaos
Joined: UTC
Posts: 1405
Location: Tucson, AZ
 
Molto Verboso
@az_slynch avatar
'07 GTS250, '07 LX150, '81 P200E, '78 P200E, '74 VBC1, '64 V90 and 3 Ciaos
Joined: UTC
Posts: 1405
Location: Tucson, AZ
UTC quote
Xsbank wrote:
Another question for the hive, (I've been watching variator movies) is why isn't there any lube on the splines? Is it dry to prevent over-servicing and slipping?
There's no lube on the splines because the variator's ramp plate and the fixed face of the variator pulley are keyed to it and turn with it. The sliding sheave rides on the variator boss, which is clamped between the ramp plate and fixed sheave. The sliding face rides on the boss, and it's locked into place by the ramp plate guides. Nothing should be turning independently of the splined shaft. Now, a touch of anti-seize on the splines might be a good idea to make it easier to remove those parts for service next time.
@az_slynch avatar
UTC

Molto Verboso
'07 GTS250, '07 LX150, '81 P200E, '78 P200E, '74 VBC1, '64 V90 and 3 Ciaos
Joined: UTC
Posts: 1405
Location: Tucson, AZ
 
Molto Verboso
@az_slynch avatar
'07 GTS250, '07 LX150, '81 P200E, '78 P200E, '74 VBC1, '64 V90 and 3 Ciaos
Joined: UTC
Posts: 1405
Location: Tucson, AZ
UTC quote
Outsider wrote:
Okay so I have a Yamaha Zuma 2 Stroke with a aftermarket exhaust what weight should my rollers/sliders be the take off is slow the mid range and top end are fine.
Details on the motor, please. Stock cylinder? Stock CVT? Which exhaust?

Might be worth lightening the flywheel. There's a guy in Redford Twp. that machined one down for a Buddy project of mine and is currently doing the same to a stock Zuma flywheel on another project of mine.
UTC

Banned
2006 LX150
Joined: UTC
Posts: 66
Location: Sechelt, B.C. Canada
 
Banned
2006 LX150
Joined: UTC
Posts: 66
Location: Sechelt, B.C. Canada
UTC quote
I'll have to look again but something has to move to pinch or release the belt, to change the ratios? Thank you for the reply, I guess I'll just tear into mine and perhaps it will make more sense.

OK, the penny just dropped, the "boss." Which is also mounted dry? I'm learning something new every day.
@az_slynch avatar
UTC

Molto Verboso
'07 GTS250, '07 LX150, '81 P200E, '78 P200E, '74 VBC1, '64 V90 and 3 Ciaos
Joined: UTC
Posts: 1405
Location: Tucson, AZ
 
Molto Verboso
@az_slynch avatar
'07 GTS250, '07 LX150, '81 P200E, '78 P200E, '74 VBC1, '64 V90 and 3 Ciaos
Joined: UTC
Posts: 1405
Location: Tucson, AZ
UTC quote
Xsbank wrote:
I'll have to look again but something has to move to pinch or release the belt, to change the ratios? Thank you for the reply, I guess I'll just tear into mine and perhaps it will make more sense.
The only parts that move are the sliding sheave (inner half of the variator pulley) and the rollers. The sheave slides on the variator boss. In many cases, the sheave has an oil-impregnated bronze sleeve that allows it to slide on the boss. In other cases, the sliding sheeve may have small seals on both ends to contain a small amount of grease and a groove in the middle to hold grease.

No seals on the sliding sheeve? No worries.
@waspmike avatar
UTC

Ossessionato
LXV 150 3v ie. Midnight Blue (Sold) Now Honda Zoomer X
Joined: UTC
Posts: 4130
Location: Kingdom of Lanna
 
Ossessionato
@waspmike avatar
LXV 150 3v ie. Midnight Blue (Sold) Now Honda Zoomer X
Joined: UTC
Posts: 4130
Location: Kingdom of Lanna
UTC quote
Outsider wrote:
Okay so I have a Yamaha Zuma 2 Stroke with a aftermarket exhaust what weight should my rollers/sliders be the take off is slow the mid range and top end are fine.
At take-off it is not the weight but the clutch springs and the depth of the channels in the variator. Some Dr. Pulley weights are very slightly larger than their stock equivalent. when measured with a caliper.
If you coat the centre boss of the variator with engineers blue or coat it using a blue felt marker you will see if the belt travels to is smallest diameter, (lowest gear) because the colour will be worn off. If not you need to work on that. Might be as easy as a longer centre boss or a washer to make it longer but then you might lose a bit at the top end, if you are reaching max rpm.

Stronger clutch springs will raise the stall speed. I.e. the RPM at which the clutch fully engages. Stronger springs will allow the clutch to slip a bit more.
UTC

Banned
2006 LX150
Joined: UTC
Posts: 66
Location: Sechelt, B.C. Canada
 
Banned
2006 LX150
Joined: UTC
Posts: 66
Location: Sechelt, B.C. Canada
UTC quote
Good info, thank you Az!
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