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Compression question, yet another...
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<blockquote data-quote="Kansas Corey" data-source="post: 174312" data-attributes="member: 11141"><p>Morning everyone. Okay - quick update: I move the needle clip from the highest point (richest setting) down 2 spots to the middle setting. Afterwards reset the carb to roughly 1.5 turns out on both pilot air screw and idle screw. Bike was slight bit harder to start and had to use choke when cold, but started and idled on roughly the 4th - 5th kick. Took it out for a quick run after it was warmed up. Top speed was 31 mph per the speedo (my GPS on iPhone wasn't working for some reason). Pulled really well the bottom half of the throttle but once about 50% of max RPM's, ran smooth but with no umph. I assume this is 1 of 2 issues possibly: either carb isn't perfectly tuned so my air fuel ratio on top 1/2 of the range isn't quite right - or - possibly gearing as touched on above.</p><p></p><p><strong>OLD CT</strong> - I looked at both intake and exhaust valves and neither one looks black / sooty. Later today, I'll swap in a new spark plug, go for a quick ride, and check the condition when I'm done.</p><p></p><p></p><p></p><p><strong>racerx</strong> - Love This!! Just wish I loved your gear ratio input as much... Not that I don't appreciate it, as I do tremendously, but I'm fairly good with math & numbers, the whole gear ratio stuff confuses the heck out of me honestly. Probably because I understand the basic concepts, but have never ever done anything with it. Later today I'll try to do a little studying and see if I can work through the numbers. Thank you for the help!!</p><p></p><p>Will update again later today once I get through my "honey do" list <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite2" alt=";)" title="Wink ;)" loading="lazy" data-shortname=";)" /></p><p></p><p>** forgot to mention above: yesterday I had been doing some maintenance work on my Suburban. After my carb adjustments and my quick ride, since I was already dirty and had tools out, I quickly changed the oil on the Honda CT70. I was really disappointed to see the oil that came out was dark gray in color and had a lot of "star dust" look to it. Obviously metal of some sort and not a good sign I assume?</p></blockquote><p></p>
[QUOTE="Kansas Corey, post: 174312, member: 11141"] Morning everyone. Okay - quick update: I move the needle clip from the highest point (richest setting) down 2 spots to the middle setting. Afterwards reset the carb to roughly 1.5 turns out on both pilot air screw and idle screw. Bike was slight bit harder to start and had to use choke when cold, but started and idled on roughly the 4th - 5th kick. Took it out for a quick run after it was warmed up. Top speed was 31 mph per the speedo (my GPS on iPhone wasn't working for some reason). Pulled really well the bottom half of the throttle but once about 50% of max RPM's, ran smooth but with no umph. I assume this is 1 of 2 issues possibly: either carb isn't perfectly tuned so my air fuel ratio on top 1/2 of the range isn't quite right - or - possibly gearing as touched on above. [B]OLD CT[/B] - I looked at both intake and exhaust valves and neither one looks black / sooty. Later today, I'll swap in a new spark plug, go for a quick ride, and check the condition when I'm done. [B]racerx[/B] - Love This!! Just wish I loved your gear ratio input as much... Not that I don't appreciate it, as I do tremendously, but I'm fairly good with math & numbers, the whole gear ratio stuff confuses the heck out of me honestly. Probably because I understand the basic concepts, but have never ever done anything with it. Later today I'll try to do a little studying and see if I can work through the numbers. Thank you for the help!! Will update again later today once I get through my "honey do" list ;) ** forgot to mention above: yesterday I had been doing some maintenance work on my Suburban. After my carb adjustments and my quick ride, since I was already dirty and had tools out, I quickly changed the oil on the Honda CT70. I was really disappointed to see the oil that came out was dark gray in color and had a lot of "star dust" look to it. Obviously metal of some sort and not a good sign I assume? [/QUOTE]
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