Welshguzzi Posted March 8, 2015 Share Posted March 8, 2015 ........ that it's not going to let me down :-( I've spent the last few weeks checking the electrics, polishing up grounds etc, put a new Odyssey battery in and giving it some TLC, but I took the bike for a pre-MOT test run, and I get an intermittent hesitation when riding at constant speed (in this case about 75mph). Also, the same happens at idle when waiting at junctions and traffic lights. This has been a feature for some time, and gives me no confidence in taking it out for a days' ride, which I really hate. Previously, you may remember that I have been towed home a couple of times, and I have never got to the root of that problem either. I'm going to get the throttle bodies balanced on the computer next week but I'd be surprised if it was something as simple as that. Your thoughts, ladies and gentlemen? Link to comment Share on other sites More sharing options...
LowRyter Posted March 8, 2015 Share Posted March 8, 2015 My bike was modified with a Power Commander when I got it, so I don't know if the stock bikes have a hesitation as described. If the stock tune is a problem (or if your bikes has been modded), then a reflash and/or PC might be the issue. Also, TPS can cause some rideability issues as well. Link to comment Share on other sites More sharing options...
Welshguzzi Posted March 8, 2015 Author Share Posted March 8, 2015 I bought the bike with a PClll fitted, but I have no idea if this is causing a problem Link to comment Share on other sites More sharing options...
Scud Posted March 8, 2015 Share Posted March 8, 2015 I get an intermittent hesitation when riding at constant speed (in this case about 75mph). Also, the same happens at idle when waiting at junctions and traffic lights. This has been a feature for some time, and gives me no confidence in taking it out for a days' ride, which I really hate. Previously, you may remember that I have been towed home a couple of times, and I have never got to the root of that problem either. I don't know your history with this problem. Perhaps it would be useful to try summarize it step by step. I had a similar problem at idle. It also stalled several times, which seemed to be triggered by the first application of throttle, just after the traffic signal turned green... (most inconvenient). I found some small cracks in the intake boots (between throttle body and cylinder head). I wrapped them with electrical tape and the problem has not come back. That was maybe 1,500 miles ago. BTW - I'm gonna leave the tape on forever; I plan to install new boots at the next service. My Link to comment Share on other sites More sharing options...
docc Posted March 8, 2015 Share Posted March 8, 2015 While the bike is on the computer, be sure to have the technician set the CO trim, that the valves are 0.006"/0.008", fresh plugs, and the TPS set before synchronizing the throttle bodies. Inspect the main 30 amp fuse for signs of heat damage and be sure you are running high quality relays. It would also be worth cleaning the ignition switch contacts and inspecting its internal wiring. The TPS, itself, can develop a glitch right at its most common openings which can cause a nasty hiccup. Link to comment Share on other sites More sharing options...
Welshguzzi Posted March 8, 2015 Author Share Posted March 8, 2015 New boots also installed - original ones were both split. The break downs were both the same - sudden loss of power (first time in lane 2 on a motorway) accompanied by prolific back firing almost like it was dropping onto 1 cylinder and eventually none. I don't want to go through that again. ! ! I tried isolating the neutral/side stand switch with no improvement, so it probably isn't that. Link to comment Share on other sites More sharing options...
Welshguzzi Posted March 8, 2015 Author Share Posted March 8, 2015 New plugs and leads Docc. Also valve clearances all good. I couldn't get the back of the ignition switch off, so I haven't been able to clean it Link to comment Share on other sites More sharing options...
stewgnu Posted March 8, 2015 Share Posted March 8, 2015 At the risk of labouring the booty point: I too replaced mine and achieved better running, but one side was split where the jube clip had cut into it- probably due to over-tightening. It could be worth removing your new boots juuust to double extra recheck that they're fine, and also, dandy. Apologies for stating possibly obvious checks but my personal mental run-thru would go: Sufficiently tight battery terminals? Plugs in tight enough? And gapped right? HT leads working well? Coil OK? Fuel filter fine? And pipes not kinked? Water in the fuel system? Hope you can diagnose the problem, I feel for you- It's shit not being able to rely on the machine. Stew Link to comment Share on other sites More sharing options...
LowRyter Posted March 8, 2015 Share Posted March 8, 2015 once you've sorted the common maintenance (plugs, wires, etc) and the problem persists, I'd recommend a tuner garage, perhaps one with a dyno to tune up the PC , or first you might take the Power Commander off it first after you do the maintenance checks. With a PC on there it sounds like there was rideability issues that were attempted to be addressed or caused by the PC. Link to comment Share on other sites More sharing options...
Welshguzzi Posted March 8, 2015 Author Share Posted March 8, 2015 Well, as long as I actually get to Streffords then hopefully all will be revealed. It's not going to be a comfortable ride :-( Link to comment Share on other sites More sharing options...
Scud Posted March 8, 2015 Share Posted March 8, 2015 1 Link to comment Share on other sites More sharing options...
Bjorn Posted March 8, 2015 Share Posted March 8, 2015 ........ that it's not going to let me down :-( I've spent the last few weeks checking the electrics, polishing up grounds etc, put a new Odyssey battery in and giving it some TLC, but I took the bike for a pre-MOT test run, and I get an intermittent hesitation when riding at constant speed (in this case about 75mph). Also, the same happens at idle when waiting at junctions and traffic lights. This has been a feature for some time, and gives me no confidence in taking it out for a days' ride, which I really hate. Previously, you may remember that I have been towed home a couple of times, and I have never got to the root of that problem either. I'm going to get the throttle bodies balanced on the computer next week but I'd be surprised if it was something as simple as that. Your thoughts, ladies and gentlemen? What do you mean with this? Are you talking about hiccups or cut outs of the engine? Maybe you could clarify the symptoms a bit more. Link to comment Share on other sites More sharing options...
Welshguzzi Posted March 8, 2015 Author Share Posted March 8, 2015 Hard to describe exactly, Bjorn. The only way I can describe it is as if I had eased off the throttle a quarter turn, very briefly, and without warning. Link to comment Share on other sites More sharing options...
Steve S Posted March 8, 2015 Share Posted March 8, 2015 I bought the bike with a PClll fitted, but I have no idea if this is causing a problem Hello Hugh, why not try running it without the PC, it only takes a minute to unplug it. Link to comment Share on other sites More sharing options...
rossi46 Posted March 8, 2015 Share Posted March 8, 2015 Well, as long as I actually get to Streffords then hopefully all will be revealed. It's not going to be a comfortable ride :-( try reps in rogiet-they have a dyno, speak to royston great bloke, a short walk to severn tunnel junction aswell Link to comment Share on other sites More sharing options...
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now