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post #1 of 10 (permalink) Old 06-04-2011, 08:16 PM Thread Starter
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back to start...

Hey

So i thought i had a slipping clutch issue but apparently i don't. i just replaced the clutch with a barrnet clutch. followed all the instructions with a service manual at my side.

under load my bike jerks. its a bit hard to explain. it happens when i get onto the throttle in lower gears. igf im in higher gears, it won't do it even under WOT. i figured it may be the clutch slipping but i was wrong. it kind of feels like it might almost be an ignition issue, but not really all that harsh. i can hear the chain jerking around. Sometime this week i am going to get myself the cbr1000 coil kit.

i have 3 codes stored in the ecu:
7 - ect sensor (the bike is hard to start when its cold)
8- tp sensor (maybe this is my jerking?)
10 - baro sensor ( the engine does idle rough sometimes but its usually when its cold and is still intermittent)

im going to look into those specifically tomorrow when i rip the bike apart again. maybe i have a problem with my engine harness? my ecu was loose when i got the bike so maybe im starting to have issues there. i used two side tape to stop it from bouncing around. im going to get some dieelectric grease and grease up the terminals at the ecu.

i checked the pc3 and its fine.

Anyways, looking for some insight on the jerking issue. should i look in other areas maybe?
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post #2 of 10 (permalink) Old 06-04-2011, 08:40 PM
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Check all those codes especially check your TPS....make sure it has not shifted or that the sensor has not gone bad and the baro sensor.
I don't think its the ignition coils....when those go bad the bike will literally just shut off when downshifting past neutral into 1st. that was my experience anyway. the coil stick conversion could not hurt though....it will make it more reliable either way.

2001 Honda RC51 SP1
1996 Honda CBR 900RR
2003 Aprilia RSV Mille R
1999 Aprilia RS50
2012 Triumph Daytona 675R (Sold)
2010 BMW S1000RR (Sold)
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post #3 of 10 (permalink) Old 06-04-2011, 08:44 PM
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might be a stupid question, but is your chain loose

Also i know you said your PC3 was good.....have you checked your map or tried different maps? the fueling may be off.

2001 Honda RC51 SP1
1996 Honda CBR 900RR
2003 Aprilia RSV Mille R
1999 Aprilia RS50
2012 Triumph Daytona 675R (Sold)
2010 BMW S1000RR (Sold)
2005 Yamaha R6 (Sold)
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post #4 of 10 (permalink) Old 06-04-2011, 08:50 PM Thread Starter
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the chain is really loose, and the rear sprocket is toast. problem found. funny it wasn't that loose at the beginning of the season...can't believe i missed that. it looks like the chain has been skipping teeth on the rear sprocket.

so in that case, what chain should i get. i don't know how old this one is but i think i want a new one. may as well. what should i get for sprockets and a chain?
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post #5 of 10 (permalink) Old 06-04-2011, 09:01 PM
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sweet. easy fix. better then it being something electrical.

DID chains are awesome. If you've considered a sprocket conversion now would be the time to do it too. Check out some of the stuff on Scott's site.

http://store.scottsms.com/RC51-2000-...2.htm?page=all

2001 Honda RC51 SP1
1996 Honda CBR 900RR
2003 Aprilia RSV Mille R
1999 Aprilia RS50
2012 Triumph Daytona 675R (Sold)
2010 BMW S1000RR (Sold)
2005 Yamaha R6 (Sold)
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post #6 of 10 (permalink) Old 06-04-2011, 09:33 PM Thread Starter
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Do i just need to buy the chain and sprockets? or is there other things that need/should get replaced? i think i'll get that chain and sprocket kit. looks good enough for how i ride the bike. im still kicking myself for not checking that...its exactly what the jerking motion feels like.

and i replaced a perfectly good clutch. the barnett one is much nicer though, i really like it. i red online that people were complaining about a harsh engagement. its a bit more grabby but not by much, much better than what was in there.

lots of cool stuff on that site though, probably shouldn't have shown me that.

off topic. suspension. what are my options in fixing them up, they still are nice and stiff and work well, but just kinda wondering what my options are. i don't really want to spend 3g's or anything. i like where its at now stiffness wise, roads aren't the best here.
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post #7 of 10 (permalink) Old 06-05-2011, 12:54 AM
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its always best to buy chain and sprockets together as a kit.

as far as suspension goes you can send your stock stuff to LE, Race Tech, DK and a few other places.
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post #8 of 10 (permalink) Old 06-05-2011, 01:15 AM
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yea the way you described it made me think of a loose chain or something mechanical causing stutter.

i think a kit is the right way to go,they are pretty cheap too. Kit should have everything you need.

Scott's is a good site and offers a good range of products at a reasonable price. He also use to track an RC and has tested most of these products himself.

Send them off to one of those places listed by CBRbear and they will rework the internals. You could also do a rear link available from Ben at rc51parts.com or from Kyle racing.

2001 Honda RC51 SP1
1996 Honda CBR 900RR
2003 Aprilia RSV Mille R
1999 Aprilia RS50
2012 Triumph Daytona 675R (Sold)
2010 BMW S1000RR (Sold)
2005 Yamaha R6 (Sold)
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post #9 of 10 (permalink) Old 06-05-2011, 05:00 PM Thread Starter
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what does the link do exactly? like how does it improve handling?

sounds like the forks are waiting till winter, they are fine i think and there is no way i have having my bike off the road while the season is fresh unless i have too. thanks for the advice though
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post #10 of 10 (permalink) Old 06-05-2011, 05:44 PM
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http://www.rc51parts.com/Product-Rea...on-Link_3.aspx

2001 Honda RC51 SP1
1996 Honda CBR 900RR
2003 Aprilia RSV Mille R
1999 Aprilia RS50
2012 Triumph Daytona 675R (Sold)
2010 BMW S1000RR (Sold)
2005 Yamaha R6 (Sold)
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