OP
@biggy888 avatar
UTC

Enthusiast
GTR125
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Location: Peebles
 
Enthusiast
@biggy888 avatar
GTR125
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Posts: 95
Location: Peebles
UTC quote
Hey everyone,

I'm having a strange problem with my px125 motor.

Recently fitted a 7spring p200 clutch. When the engine is hot I am having problems pulling away from a stop. It feels like it is bogging down and as I release the clutch, instead of pulling away smoothly it lurches forward then stops.

It's like i can't slip the clutch. It's either engaged or not. If I'm on an incline it's a nightmare. Once I'm moving it works fine and if in slow moving traffic it's fine. This only happens when I come to a complete stop and go to pull away.

Any ideas??

Thanks
@spiderwebb avatar
UTC

Addicted
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Addicted
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UTC quote
isn't there a brass shim in there that helps stop this lurching...?
UTC

Molto Verboso
px200
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Location: london
 
Molto Verboso
px200
Joined: UTC
Posts: 1269
Location: london
UTC quote
+1 on the shim plus did you soak the plates in oil.

Check the easy bits first.

Oh is the clutch a after market part?

Grumpy
UTC

Addicted
250 Super
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Location: 93441
 
Addicted
250 Super
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Location: 93441
UTC quote
I "enjoyed" similar symptoms during the 2012 Cannonball. It was actually the clutch basket/pressure plate that had notched that was causing the problem. Shifting while moving wasn't too bad, but starting from a dead stop was just a bit challenging.
Forum member supplied image with no explanatory text
@ginch avatar
UTC

Veni, Vidi, Posti
74 Super, 75 Super, PX project, LML off-roader and '66 Blue Badge Smallframe
Joined: UTC
Posts: 8671
Location: Victoria, Australia
 
Veni, Vidi, Posti
@ginch avatar
74 Super, 75 Super, PX project, LML off-roader and '66 Blue Badge Smallframe
Joined: UTC
Posts: 8671
Location: Victoria, Australia
UTC quote
Wow. That is notched to hell! Hadn't seen one as bad as that.
@spiderwebb avatar
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Addicted
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UTC quote
bad cush gear causes that
OP
@biggy888 avatar
UTC

Enthusiast
GTR125
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Posts: 95
Location: Peebles
 
Enthusiast
@biggy888 avatar
GTR125
Joined: UTC
Posts: 95
Location: Peebles
UTC quote
Hey, thanks for the replies.

The plates were soaked for a week before installation and the shim was in place.

The unit was from beedspeed and was aftermarket yes. It had been heat treated though.

I'll strip it down and see if it's notched. The unit hasn't even seen 100 miles yet.

Thanks
OP
@biggy888 avatar
UTC

Enthusiast
GTR125
Joined: UTC
Posts: 95
Location: Peebles
 
Enthusiast
@biggy888 avatar
GTR125
Joined: UTC
Posts: 95
Location: Peebles
UTC quote
Also meant to say the Cush drive was also rebuilt when the new clutch went in but not sure if spiderwebs comment was meant for me or classic riders image.

Cheers
UTC

Molto Verboso
px200
Joined: UTC
Posts: 1269
Location: london
 
Molto Verboso
px200
Joined: UTC
Posts: 1269
Location: london
UTC quote
Hello

Some of the after market clutch baskets do not have the slots deep enough and it causes all sorts of strange problems.

Good Luck

Grumpy
UTC

Lurker
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Lurker
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UTC quote
The words aftermarket and Beedspeed do not bode well for this tale.
Pretty sure most of their stuff is pretty poor quality.
@sfvsr avatar
UTC

Ossessionato
a lambretta or two
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Posts: 3724
Location: San Francisco
 
Ossessionato
@sfvsr avatar
a lambretta or two
Joined: UTC
Posts: 3724
Location: San Francisco
UTC quote
jude wrote:
The words aftermarket and Beedspeed do not bode well for this tale.
Pretty sure most of their stuff is pretty poor quality.
I've got stuff from Beedspeed before and it was mostly really really really really shitty.
@vespigi avatar
UTC

Hooked
'62 TV175, '70 GP-RB250, '74 Rally 200. '03 PX200E
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Location: South Africa
 
Hooked
@vespigi avatar
'62 TV175, '70 GP-RB250, '74 Rally 200. '03 PX200E
Joined: UTC
Posts: 323
Location: South Africa
UTC quote
I bought a stator plate from them and right from the word go produced such a week spark that the bike would not idle (bad ignition coil). The stator was the shitty Swiss brand.
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