jtucker Posted March 5, 2003 Posted March 5, 2003 Dont't get me started on speedo cable problems! After installing my Magni fairing, my speedo worked just find for quite a while. Then one day... it started jumping and soon died. I blew out an angle drive. Got new agle drive, installed it, still not working. Now the angle drive on the other end was shot. So I replaced that, rode 10 feet, and blew out another one! I've routed and re-routed the cable. It turns real smooth by hand. Same with the speedo... I can manually turn the drive on the back and it works fine. However, when I connect the cable to the speedo and try tuning it again, it binds up for no apparent reason. This time, I'm letting my dealer take a shot at it - I've tried everything I can think of.
Guest scott Posted March 8, 2003 Posted March 8, 2003 Like most of you, I too have suffered speedo problems. After only 500 miles the speedo stopped working and the 45 degree gear needed replacement due to oil leakage (the plastic outer body of the 45 degree gear was cracked). I've discovered the speedo cable is about 1-2mm too short with respect to the outer casing it rides in. Used a little locktite at both ends; so far working ok. Local dealer says unfortunately Guzzi's are known for speedo problems.
Guest Darth Maul Posted March 9, 2003 Posted March 9, 2003 question for those who burst their angle drive: do you guys have the jumpin needle syndrome first before it went kaput....???
Guest Darth Maul Posted March 9, 2003 Posted March 9, 2003 i manage to get a new angle drive. it comes with a metal C bracket to hold the drive down so that it wont keep poppin out from the housing. but it doesnt comes with a place to mount the bracket on. (???) after replacing the new angle drive, we decided to spin the rear wheel... and to our horror we saw the new angle drive beginnin to pop out slowly from its housing. also when we spin the wheel backwards we can hear a sound coming out from the angle drive. every few anti clockwise theres a clicking sound. sounds like the gearing in there is winding itself up & up & then release... thus the clicking sound. After much testing and foolin around the cable route...dis is what we figure. the cable mounting at the top of the speedo is rather angle sensative. (Mike Stewart is right.) the speedo cable joint can be turn an angle here n there. so... in the end we just turn the speedo mountin and spin the wheel anti-clockwise until we found the best angle that doesnt click. kinda like lookin for the right radio frequency. then we just hold it in position w cable ties. also made a bottom mount for the C bracket... in case it will pop out again. at the moment the 'jumpin needle' is gone and i hope it will be ok from now on. will ride more this week to test it out.
docc Posted March 11, 2003 Posted March 11, 2003 Travelling I 65 the other day, leading a Lemans IV, I began counting seconds past mile markers(using my added dash clock with sweep second hand). For 4 or 5 trials , showing 80 on the speedo, I kept getting 48 or 49 second miles. That translates to 74.23 mph !! Is the speedo really that botched? My buddy said his LMIV was also showing 80. Next time on the slab I guess I'll crank up to 85 (a true 79?). Now my question for you , the gurus of Guzzi: If the speedo is off by 7%, is the odometer also off by 7%? If so I don't have 20,000 on the sport, only 18,600???
dlaing Posted March 11, 2003 Posted March 11, 2003 I did a rough estimate before and came up with about +6% speedo and +3% tach. But I have also found that mile markers vary, so you never know...
docc Posted March 11, 2003 Posted March 11, 2003 Still, do you think that 6% translates to the odometer as well?
dlaing Posted March 11, 2003 Posted March 11, 2003 I meant Odometer not tach(ometer). So, I meant to say that it took about 63-64 seconds to run through mile markers at 60mph indicating about 6% fast, and the odometer one mile and just over a quarter of a tenth indicating what I guessed to be about 3%off. Hardly scientific. The odometer should really be run over many miles, and I should have used a stop watch rather than looking at my wrist watch to judge the speed. Supposedly GPSs are highly accurate ways to measure speed. I am still dubious of the mile markers.
docc Posted March 11, 2003 Posted March 11, 2003 You're right about using the GPS. I'll have to enlist some help from the sport-tour guys . Beats averaging out those last three or four tickets. Those guys say their method of speed determination is rather accurate.
dlaing Posted March 11, 2003 Posted March 11, 2003 I ran my odometer against a Honda VFR and St1100. The VFR went an indicated 91miles, I went 83 miles and the ST1100 went 80 miles. If your odometer is off, it can also mess up your MPG calculation, so the 35mpg that I thought I was getting is more like 34MPG. The guy on the VFR claimed he was getting 35MPG, but now we know it was probably closer to 31mpg. That pig of an ST was beating us both for gas mileage at a true 40MPG. Hey the good news is that you can adjust your maintenance schedule to every 6000 indicated miles to every 6360 miles
callison Posted March 12, 2003 Posted March 12, 2003 The hot setup is to install a Sigma BC800 bicycle speedometer and just do a careful calibration using the wheel diameter that has the magnet on it.
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