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Free Bird
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81 Posts
Discussion Starter #1
Well this new bike that I have.. (03 R1) with 13-1 compression.. runs nice.. but for some reason when I pop the clutch in 2nd gear to pull up a wheelie is just wont do it.. The bike is stock height, isn't stretched. I havent noticed the clutch slipping or anything. What in the world could be the problem? Ive owned several bikes from 00 and 01 R6's ZX6's... to ZX9's, ZX10's, CBR 1000's... and have never had a problem at all pulling it up in 2nd gear when popping the clutch on any of them and walking a good qtr mile wheelie. Could something be wrong with my clutch? I mean the bike doesn't feel weak.. but it sure wont come up in 2nd. Thoughts?
 

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Ron Paul 2012
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3,778 Posts
Good to see some things never change! Viagra in the tank and helium in the tires! Nah, jk, no clue why an R1 wont come up in 2nd gear...
 

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A guardrail ate my right leg..
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3,852 Posts
Does the exhaust have EXUP valve? I can't recall if they do or not but it seems like there have been others that have had this problem and the EXUP cables needed adjusted back to spec.
 

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Free Bird
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81 Posts
Discussion Starter #4
Does the exhaust have EXUP valve? I can't recall if they do or not but it seems like there have been others that have had this problem and the EXUP cables needed adjusted back to spec.
Not sure if the exup valve is still hooked up and adjusted right or not. just got the bike saturday.. and the man I bought it from told me he had changed the mid pipe or something.. it has an Akrapovic slip on.. but Im wondering did he put some other kinda mid pipe on it.. or did he mean the pipe that came with the akrapovic.. I really dont like the fact I cant lift it up if i want to.
 

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A guardrail ate my right leg..
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3,852 Posts
I'd look into that before I started into anything serious.
 

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Free Bird
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81 Posts
Discussion Starter #6
Ok.. so I went outside to the shop.. took the fairin off just now.. My two cables going to the ex up valve connecting the headers to mid pipe, were kinda loose.. I could wiggle them with my hand pretty easy.. they weren't quite loose enough to take off. But like I said I could wiggle them pretty good.. Im not sure how tight they are suppose to be. I took two photos.. One of the actual ex up where the cables are.. and one of where Im assuming you adjust the tension on the cables. Also found this write up on how to adjust them. But it's almost like another language to me. lol maybe someone can help me understand by making a mark on my picture of what hole he is talking about lining up.




Adjusting the EXUP cables on that bike is easy:

Remove EXUP valve pulley cover (down on exhaust pipe).
Turn on main (ignition) switch and watch for EXUP valve pulley to move, then turn switch off.
If the EXUP is properly adjusted, the pulley will come to rest with the fork on the pulley positioned directly over a small hole in the EXUP housing, and the further away from this it is, the further out of spec it is.
If it's way off, loosen the lock nuts and twiddle the EXUP cable adjusters and dial in plenty of slack.
Using a suitable pin that fits snugly into that EXUP housing hole, line up the pulley fork with the hole by using the pin to hold the pulley in place.
Turn the cable slack adjusters evenly in the opposite direction until you feel the slack removed from both cables.
Turn both slack adjusters back in a half-turn (this will allow just enough slack in the cables so they won't bind).
Tighten slack adjuster lock nuts.
Remove pin holding pulley in place.
Install EXUP pulley cover.

Those are the steps for adjustment, though on my bikes, I'll go further by removing the actual EXUP valve from the pipe, lubricate the pivoting bearing surfaces (and the little connecting arm between the upper and lower EXUP valves on your 2003 model), reinstall the valve, then adjust as written above.
 

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Free Bird
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81 Posts
Discussion Starter #7
If any mods stop by and read this.. could you please change the title of this thread for me. make it something like "help adjusting the ex up valve"
 

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R1-011 Wolfpack Squadron
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1,375 Posts
my 03 also wouldnt come up in 2nd. so dont feel left out. but bike was mistreated by previouse owner and had major power loss. 122 to the rear after dyno tuning with custom map and short ankle exhause with little back pressure
 

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Free Bird
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81 Posts
Discussion Starter #10
my 03 also wouldnt come up in 2nd. so dont feel left out. but bike was mistreated by previouse owner and had major power loss. 122 to the rear after dyno tuning with custom map and short ankle exhause with little back pressure
but this bike isn't the stock 11.5-1 compression.. it has about 3000 miles on a 13-1 compression motor build.. And it was all proffesionally done.. I was able to lift up 600's in 2nd gear by popping the clutch.. so it can't be that the bike isn't capable of having the power.. It's gotta be that ex up.. because after researching it more. it says that ex up gives u much more torque at a lower rpm.. and thats when im usually popping the clutch in 2nd gear, is at a lower type rpm.
 

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R1-011 Wolfpack Squadron
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1,375 Posts
yeah, i had a previous owner trash my bike to. still backfires when slowing down.
backfiring can be do to the pipes under your air box i forget the name of it. depending on the style of backfire its totaly normal. its extra air being sucked in and basically blasting out the extra exhaust. i thought it was bad as well tell i was showen exactly what it was when my 03 was dyno'd. my 07 doesnt do anything like the 03 did. im geussing its a newer model thing and just our older bikes were built for it. i may be wrong,, just going off what i was told by the owner of the dyno who LOVES the R1
 

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Is it f'n time yet.....
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5,695 Posts
but this bike isn't the stock 11.5-1 compression.. it has about 3000 miles on a 13-1 compression motor build.. And it was all proffesionally done.. I was able to lift up 600's in 2nd gear by popping the clutch.. so it can't be that the bike isn't capable of having the power.. It's gotta be that ex up.. because after researching it more. it says that ex up gives u much more torque at a lower rpm.. and thats when im usually popping the clutch in 2nd gear, is at a lower type rpm.
Your bike is obviously broken:crash
 

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Free Bird
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81 Posts
Discussion Starter #15
is there a tech thread section here anywhere?? that I can get good comments or advice from someone who has knowledge about the matter at hand. Instead of replies like "your bike is obviously broken".... That doesn't help me at all with adjusting the ex up valve.
 

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The One
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582 Posts
but this bike isn't the stock 11.5-1 compression.. it has about 3000 miles on a 13-1 compression motor build.. And it was all proffesionally done.. I was able to lift up 600's in 2nd gear by popping the clutch.. so it can't be that the bike isn't capable of having the power.. It's gotta be that ex up.. because after researching it more. it says that ex up gives u much more torque at a lower rpm.. and thats when im usually popping the clutch in 2nd gear, is at a lower type rpm.

Really on those years bike you should be able to get it up (yeah I said it) off throttle should be no reason to do a clutch drop. Unless you trying to do it at a low speed.
 

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Free Bird
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81 Posts
Discussion Starter #18
Really on those years bike you should be able to get it up (yeah I said it) off throttle should be no reason to do a clutch drop. Unless you trying to do it at a low speed.
I was thinking the same thing... So im confused on what would be causing it to do this.. I used to pull 2nd gear power wheelies on my 06 CBR 1000 when I had it, with ease.. Im gonna start with adjusting this ex up valve.. if I can find out how tight I need to get the cables. If that doesn't help. Im not sure what route to take.. because I know it should come up in 2nd pretty easy.
 

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Is it f'n time yet.....
Joined
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5,695 Posts
is there a tech thread section here anywhere?? that I can get good comments or advice from someone who has knowledge about the matter at hand. Instead of replies like "your bike is obviously broken".... That doesn't help me at all with adjusting the ex up valve.
Hey, my bike is broken too.....I can't get my left knee down as easy as my right. I think it's off balance, with incorrect air quality in the tires:crash

BTW, go to the mechanical section of the Forum for appropriate tech help:fact
 
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