aliveagain
Needs a life
Posts: 5033
|
posted August 27, 2005 02:38 PM
I finally got to ride again today!Had a problem with some pins coming out and the bike would not fire(no fuel).I'm at a loss,but this bike is almost unstreetable.Anything under 40 mph and the throttle has a hair trigger.I'll take it up on the highway tonight and see about midrange.I've tried taking some fuel out and adding some but its still too touchy.I remember when I broke the motor in last May or so,it was alot more smoother.I'm at 1427,cams 105/102,PCIII and a Muzzy manual timing advancer which I believe is set back 2 degrees for the nitrous.Now I like the slight increase in power with the extra stroke but damn,I have to ride this in city traffic going to work.How can I smooth out the on/off switch for a throttle?
____________
I wondered why the baseball kept getting bigger. Then it hit me.
  
|
VincentHill
Needs a life
Posts: 6520
|
posted August 27, 2005 04:46 PM
Because of all of the fooling around, you first need to check your compression to make sure you have not bent some valves. Then you are going to need to set up a degree wheel and a Dial Indicator and "FOR REAL" See when you valves are opening and closing. When you have "Slightly" bent valves, it "FEELS" like you have lost power Down low and feels more normal in the Higher revs. Also will not Idle well either . You know that I am speaking from EXPERIENCE and The 1 tooth off like JC Said was my #1 choice. CHECK THE COMPRESSION and if you are not reading over 160 to 180 PSI, you have a problem and a lot more work ahead Sorry to say!
____________
Made History @ Daytona and still one fast old man!!
|
aliveagain
Needs a life
Posts: 5033
|
posted August 27, 2005 06:13 PM
I rode some tonight and it had a hell of alot more power then I could remember.Lights the tire at 3000 rpms when I wack the throttle.I'm inclined to think its the timing also and will ask Freddie to ride the bike to see what I'm talking about.If it wasn't for the low rpm's,I'ld want to keep the setting the way it is.Tons more torque down low and all over, that's why I think its timing.I think I probably should get a compression reading just for future knowledge. What gets me is the timing was checked twice after the new cam chain install.If it is still off by one tooth,I'll more than likely ask him to reset it to 105/105.Thanx Vincent.
____________
I wondered why the baseball kept getting bigger. Then it hit me.
|
aliveagain
Needs a life
Posts: 5033
|
posted August 29, 2005 07:24 PM
Seems like the bike is mellowing out in lower rpms,maybe its just breaking in.I opened it up coming on the highway today.WOW,this thing is a bear.I don't know where I shifted as the light didn't flash but it definately demands respect when ridden.Conn has a lot of traffic and I don't have the skill to go fast but dang those short blasts are an adrenalin junkies fix.The next test and tune looks like it'll rain so I'll have to wait until next week.It's certainly good to be back on the road again and I'ld like to thank all of you who helped me with your experience and knowledge.
____________
I wondered why the baseball kept getting bigger. Then it hit me.
|
Ra12r
Zone Head
Posts: 919
|
posted August 31, 2005 04:14 AM
So what was the problem causing your idle issues?
____________
All must bow to the "Ra Supremecy"...
|
aliveagain
Needs a life
Posts: 5033
|
posted August 31, 2005 07:16 AM
I ended up changing the cam chain which solved the problem of the idle.The on/off switch feeling in the throttle seems to be going away with use, so I wonder if the adjustment on the cam chain was too tight.I also was told that they checked the compression and all cylinders are around 250 .Also, a couple of pins had worked out on the ecu which didn't register on the diagnostic mode and the motor wasn't getting enough fuel.Feels good to ride again,just in time for the rain season.
____________
I wondered why the baseball kept getting bigger. Then it hit me.
|
psycho1122
Pro
Posts: 1608
|
posted August 31, 2005 07:39 AM
250 psi a hole eh??!
What is your elevation and Pressure when you had it checked??
My 1270 makes 245 a hole at 1,100 ft @ 29.80....COLD!
____________
You say PSYCHO like it's a BAD thing!!
|
aliveagain
Needs a life
Posts: 5033
|
posted August 31, 2005 10:03 AM
psycho1122,I have no idea what the altitude or barometric pressure was during the reading.I think the mechanic was more concerned about having even readings.The reading was done cold also as they were trying to trouble shoot the no start problem.
____________
I wondered why the baseball kept getting bigger. Then it hit me.
|
Ra12r
Zone Head
Posts: 919
|
posted August 31, 2005 06:11 PM
Changed the cam chain eh......... That means that your cam timing was off. I will guess and say that you had way too much overlap. Have fun and enjoy your new monster.
____________
All must bow to the "Ra Supremecy"...
|
aliveagain
Needs a life
Posts: 5033
|
posted September 01, 2005 02:19 PM
I'm at a loss.I rode the bike to work and its still running rough.It seems to be worse when the engine gets hot and then the idle kind of hangs up(races at 3000 rpms).How do you guys check for intake boot leaks?Somebody at work told me to try ether but that didn't sound too safe.
____________
I wondered why the baseball kept getting bigger. Then it hit me.
|
psycho1122
Pro
Posts: 1608
|
posted September 02, 2005 07:22 AM
aliveagain;
Have you had a CUSTOM map done for this new engine??
If not, you are probably TOO LEAN. That much squeeze will demand alot of fuel at all throttle postions. I have seen as much as +25-30 in some sectors on my current map.
Have you done a mechanical sync on the TB's?? Also, adjusting the air correctors to AT LEAST 2.5 turns out will smooth off idle throttle response. DO THIS BEFORE YOU HAVE A MAP MADE.
Both of these will DRAMATICALLY smooth out your engine. It will run alot cooler too!
____________
You say PSYCHO like it's a BAD thing!!
|
aliveagain
Needs a life
Posts: 5033
|
posted September 02, 2005 08:51 AM
What the hell are air correctors? I've had the bike mapped and sync-ed.I've been playing with the fuel and on the low button,I'm at 3 bars passed midway and its starting to smooth out.Its still hanging up a little so I may give it another bar.It just seems to be alot of bias at idle,couldn't imagine what would happen without the muzzy pump.
____________
I wondered why the baseball kept getting bigger. Then it hit me.
|
psycho1122
Pro
Posts: 1608
|
posted September 03, 2005 05:31 PM
There are air screws in the TB's (like fuel screws on a rack of carbs). You will have to bust out the caps to expose them. Getting these all at least 2.5 turns out or so is half the trick to smooth off idle throttle response.
No Laptop interface with the PC?! Are you really using the "Three Buttons" on the PC?!
Now your just guessing......Please have a custom map done asap, you will be VERY happy! (so will your engine) 
____________
You say PSYCHO like it's a BAD thing!!
|
aliveagain
Needs a life
Posts: 5033
|
posted September 08, 2005 04:01 PM
Had fun at the track yesterday,did a personal best of 9.77.This was without the nitrous.The bike drove me crazy as I couldn't hold a steady rpm.Finally tried launching at 7500 and voila.Pissed me off enough that I was going to replace the throttle position sensor so I did a search and found some info on testing it.Fred thought that by 0-ing out on the dynojet reading it would work.I had 4.90 volts supply and 2.25 output.Adjusted to 1.80 and I'm optomistic about the idle.Test run down the street and back allowed me to hold a steady speed.I'll ride it tomorrow night .Looks like I'll be keeping a couple of pins in my tool bag now.
____________
I wondered why the baseball kept getting bigger. Then it hit me.
|
|
|
HOME
NEW TOPIC