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General Minitrail Talk
Modifications
Trans mounted clutch... TRX90
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<blockquote data-quote="kirrbby" data-source="post: 168024" data-attributes="member: 3972"><p>So my 124cc ST50 is running the TRX90 engine with to semi-auto clutch. But the stock clutch was machined to accept a extra fiber and steel disc...making it a 5 disc kind of like the taky and some of the Chinese engines. I ride that bike on the street and really have no complaints with the semi-auto clutch. The only bitch I could offer is that you can't just pull in a clutch lever and downshift to first like you could with a manual. </p><p></p><p>But since I've taking a big liking to the TRX motor, I'd like another, with a manual clutch. </p><p></p><p>My ST50 has a 54mm stroker crank that is a direct replacement for the TRX crank...long on the right side. It's made by Clipping Point. My motor also has a 54mm cylinder and a 4 valve head that are Clipping Point. I'm not sure if Takegawa or kitaco make a crank for the TRX90.</p><p></p><p>But if you want to convert to a manual clutch on a TRX, and you want a stroker crank, you can use the 12v CT Z type cranks in the TRX motor, but you have to sort out the clutch. </p><p></p><p>CHP used to have the taky clutch setup that is made for this job. The one pictured above. They also sold the cover only. Then they had the bits you would need to make the cover work with the TRX trans mounted clutch.</p><p>The bits... basically just a small primary drive gear and clutch nut made to mate up to the taky cover. The cover has to engage the crank shaft because oil is supplied to the crank thru the cover. </p><p>[ATTACH=full]54967[/ATTACH] [ATTACH=full]54968[/ATTACH]</p></blockquote><p></p>
[QUOTE="kirrbby, post: 168024, member: 3972"] So my 124cc ST50 is running the TRX90 engine with to semi-auto clutch. But the stock clutch was machined to accept a extra fiber and steel disc...making it a 5 disc kind of like the taky and some of the Chinese engines. I ride that bike on the street and really have no complaints with the semi-auto clutch. The only bitch I could offer is that you can't just pull in a clutch lever and downshift to first like you could with a manual. But since I've taking a big liking to the TRX motor, I'd like another, with a manual clutch. My ST50 has a 54mm stroker crank that is a direct replacement for the TRX crank...long on the right side. It's made by Clipping Point. My motor also has a 54mm cylinder and a 4 valve head that are Clipping Point. I'm not sure if Takegawa or kitaco make a crank for the TRX90. But if you want to convert to a manual clutch on a TRX, and you want a stroker crank, you can use the 12v CT Z type cranks in the TRX motor, but you have to sort out the clutch. CHP used to have the taky clutch setup that is made for this job. The one pictured above. They also sold the cover only. Then they had the bits you would need to make the cover work with the TRX trans mounted clutch. The bits... basically just a small primary drive gear and clutch nut made to mate up to the taky cover. The cover has to engage the crank shaft because oil is supplied to the crank thru the cover. [ATTACH=full]54967[/ATTACH] [ATTACH=full]54968[/ATTACH] [/QUOTE]
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General Minitrail Talk
Modifications
Trans mounted clutch... TRX90
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