Dirty McGerty Posted August 17, 2011 Report Share Posted August 17, 2011 I just refreshed a top end on a shee I rescued from a poor owner. 1. cool head with 19cc domes. 2. 64.75 bore with wiseco prolites. 3.CPI in frames 4. 104 octane with castor 927 mixed at 32:1. Heres the thing. I mounted up some mikuni 34mm carbs with 300 mains. Stock air box with a uni replacement filter without the lid. The quad idles great and takes the throttle good, but at high rpms in neutral it misses. I am still waiting for my shipment to get here to replace the bent axle I baught it with, so I cant do a plug chop yet. Does anyone know if this is normal when the bike is just sitting there. One would thinkl it would rev until disaster happened if it were correct. Hitting the kill switch at high RPM gave a plug result that looked fine. (elevation 500ft.) Quote Link to comment Share on other sites More sharing options...
sleeper06 Posted August 18, 2011 Report Share Posted August 18, 2011 please stop revving it in N,is like an ignition break up or fat like fuel,what jets are in the carbs,are they VM,flats? Quote Link to comment Share on other sites More sharing options...
Dirty McGerty Posted August 18, 2011 Author Report Share Posted August 18, 2011 please stop revving it in N,is like an ignition break up or fat like fuel,what jets are in the carbs,are they VM,flats? I honestly can't say I know the difference between the ignition break up or fat like fuel. Educate me. They are the flatslide carbs with 300 mains. I can't remember the exact pilot, but I would assume they are not a problem since it idles fine and is good at low RPM. A local trusted friend gave the advice of needing like a 330-350 main in the 34's. He claims several people are running 300's in the stock carbs. He also states my application would be better with stock carbs and cutting loose the 34's. IDK. He says the 34's are for the big boys going to cheetah cylinders. Thanks for the response. Quote Link to comment Share on other sites More sharing options...
AKheathen Posted August 20, 2011 Report Share Posted August 20, 2011 well, your friend likely is trying to butter you up to get your carbs. the stock carbs have a fe issues. having cpi-s, our powerbadn suggests that you have appropriately sized carbs. a port job would be the next thing i would do. back to the task at had- need your elevation and riding temps Quote Link to comment Share on other sites More sharing options...
camatv Posted August 20, 2011 Report Share Posted August 20, 2011 oh please jet the bike in the garage full throttle in neutral!!!! and take a video of it!! i love watching cranks twist and scream! Quote Link to comment Share on other sites More sharing options...
ziegman Posted August 21, 2011 Report Share Posted August 21, 2011 (edited) well, your friend likely is trying to butter you up to get your carbs. the stock carbs have a fe issues. having cpi-s, our powerbadn suggests that you have appropriately sized carbs. a port job would be the next thing i would do. back to the task at had- need your elevation and riding temps Actually I have no interest in the carbs. That bike ran like a bat out of hell with the stock carbs on it. I didnt see the need for 34s on a stock stroke stock port bike. I run 300 mains in my stock carbs, he is in the same area, same elevation, same basic setup. So 300s in 34s could lead to a lean condition on top end since he is flowing more air. He stated he was going to sell it so I suggested going back to the stock carbs. He probably wont net anything more with the 34s on it. Keep them and sell seperately. Edited August 21, 2011 by ziegman Quote Link to comment Share on other sites More sharing options...
Zwiser Posted August 21, 2011 Report Share Posted August 21, 2011 why is it bad to rev it in neutral? ive been doing my heat cycles for the break in, i dont rev it WOT but i blip the throttle once in a while Quote Link to comment Share on other sites More sharing options...
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