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General Minitrail Talk
Modifications
Sticking a Honda Hot Cam (or DRATV Mini Monster Cam) in a stock 3-speed CT70
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<blockquote data-quote="fatcaaat" data-source="post: 150057" data-attributes="member: 1656"><p>You do not need to remove the head to swap a camshaft. You have to loosen the tappet adjusters all the way loose and then hold them open and pull the cam right out. As for improvement, yes, you will gain a little more top end and maybe a little more usable power in the 5-7500 rpm range and probably won't notice anything missing on the bottom. You may need to adjust jetting. I don't see any way possible that you would have less speed/power from adding a cam if you also dialed the engine back in. For something that is stock everywhere else, adding a huge cam probably isn't going to get you any massive gains. If you want to really get improvement, you'd need to port it, exhaust it, and carb it most likely. </p><p></p><p>I've posted before that by adding a supertrapp, vm20 and portwork, I was able to have a very noticeable improvement in acceleration and I was able to regear the bike to go 50+ on a flat. But all things being equal, I think you'd be better off adding a 52mm bore kit and rejet and achieve the same thing with everything else stock.</p></blockquote><p></p>
[QUOTE="fatcaaat, post: 150057, member: 1656"] You do not need to remove the head to swap a camshaft. You have to loosen the tappet adjusters all the way loose and then hold them open and pull the cam right out. As for improvement, yes, you will gain a little more top end and maybe a little more usable power in the 5-7500 rpm range and probably won't notice anything missing on the bottom. You may need to adjust jetting. I don't see any way possible that you would have less speed/power from adding a cam if you also dialed the engine back in. For something that is stock everywhere else, adding a huge cam probably isn't going to get you any massive gains. If you want to really get improvement, you'd need to port it, exhaust it, and carb it most likely. I've posted before that by adding a supertrapp, vm20 and portwork, I was able to have a very noticeable improvement in acceleration and I was able to regear the bike to go 50+ on a flat. But all things being equal, I think you'd be better off adding a 52mm bore kit and rejet and achieve the same thing with everything else stock. [/QUOTE]
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General Minitrail Talk
Modifications
Sticking a Honda Hot Cam (or DRATV Mini Monster Cam) in a stock 3-speed CT70
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