Jump to content


  • Content Count

  • Joined

  • Last visited

Community Reputation

18 Good

About bdouvill

  • Rank
    World Superbike Racer

Profile Information

  • Location
    Antibes, French Riviera - FRANCE
  • In My Garage:
    Suzuki Bandit GSF 400 (1992)
    Honda VFR 750 (1993)

Recent Profile Visitors

3164 profile views
  1. bdouvill

    Super weird starter issue

    So I got back home with the engine not running perfectly . In fact, that is exactly like how I got to work on Monday morning 😉 Gone is the hydraulic lock issue and I learned my lesson. Watch out the petcock when you put it in PRI... I also have new clues about my electrical issue which is quite good. Here is the thing: - On Sunday, I removed my 25-30 000 km irridium spark plugs and put back my previous regular spark plugs (which I changed after 12 000 km) and were still ok. The one from Cylinder #1 was all black like my carbs were way out of synch (which I know is not true). The old one I put back into the engine had a "regular" brownish color. - Yesterday, when I removed the spark plugs to remove the gas from the cylinder(s), the spark plug from Cylinder #1 was again all black after only 10 km (and a few tests on Sunday). Since I am: - looking for a misfire issue - I switched all spark plug - I switched all spark plug caps - I changed the spark wire on this cylinder (I know it) this let me with a potential culprit which is the coil that is driving cylinders #1 and #4 - more precisely the output connected to cylinder #1 The quest continues...
  2. And I just noticed that I started this thread 3 years ago (and 6 days). It's definitely the time to ride it...
  3. Because I don't want to accept easily the defeat, I dismantled the engine again... I removed it from the engine, removed the 2 cylinder heads to change the valve seals. I took this opportunity to lap all 16 valves properly with this tool which worked great. The seal I got from the Bay were fine. Some old one were ovals, no surprise they were leaking. That was obviously before: and after the lapping The whole thing took me more time that I thought. Engine is now back in the frame and I synch'ed this bad girl. Fires like a charm and gone is the white oil smoke 😉 I am currently in the brake rebuild process: new seals and lot of red grease, braided lines, new fluid. Let's hope I can run it again before Christmas.
  4. bdouvill

    Super weird starter issue

    Thank you @GreginDenver you were right with the hydraulic lock 😉 Cylinder #3 (according the the service manual page 1-3) was full of gas. I removed the spark plugs, put in the 5th gear and run it. I received gas on my face, in the eye and on my shirt... but I am ok. After I made everything necessary, it is running again... with the original electrical problem still there 😞 so not as smooth as it should. The difference with my original post is that I replaced the battery with a new one and also the starter relay. So I am left with my original issue... I made it run for a few minutes in order to warm it a little bit and see how it goes when warm. Let's hope I can come home without trouble tonight 😉
  5. bdouvill

    Super weird starter issue

    @zupatun I had difficulties to start the bike for 3 weeks now. But it started. I described those symptoms in the first post. And by searching for the problem, I accidentally let the petcock fully open on Sunday night (Nov 11th). I asked for help on Monday during the day (the 12th). Symptoms were only difficult start and weird behavior of my charger connector. On Monday night, I noticed the gas smell and found I let the petcock opened and closed it. I also saw gas contaminated the oil but did not think some could have stayed in the cylinders... At that point, it was not possible to start the bike (only click on the relay) nor jump start it. That would be normal if there's plenty of fuel still in the cylinders. On Tuesday afternoon (the 13th), so approximately 20 hours after I closed the petcock, I changed the oil for new oil and put a brand new battery. Same (new) symptoms: relay clicks (this is when I made the video )and no jump start possible. At this point, we might expect all fuel to have gone into the oil and no more in the cylinders but there might be still some gas inside the cylinders. Let's hope that did not contaminate the fresh oil. Today (14th), I believe I killed the relay (RIP) but I have another one that I will bring tomorrow and saw that starter is running when disconnected from the engine (when bypassing the relay). Tomorrow, I'll remove the spark plugs and see if with a new relay (or by pushing the bike) we can see gas getting out of the cylinders through the spark plug holes.
  6. bdouvill

    Super weird starter issue

    So I had an electrical issue to start with. And that might end in broken engine because I forgot to close this f... petcock...
  7. bdouvill

    Super weird starter issue

    OMG... that make perfect sense. I hope I did not break anything like bending the valves... At lunch time today, I removed the starter and checked it was freely turning. In the end, with the help of a fellow rider and colleague, we saw the starter working by bypassing the relay but I believe the relay might be fried now after all our attempts. Will bring my spark removal tool tomorrow and see. Fingers crossed.
  8. bdouvill

    My restoration thread

    Place to store all my resto thread. External links seem to break regularly.
  9. bdouvill

    Super weird starter issue

    Unfortunately, I don't think that's the battery. I just installed a brand new one (put the acid inside around noon, installed it in the bike at 03:00PM). I just don't understand why I cannot push start the bike. I will remove the starter today and see if the output axle can rotate freely.
  10. bdouvill

    Super weird starter issue

    Some news from today and they are not good. I took my day off but went to work. I changed the battery and the oil. Then no more chance than yesterday night. And I noticed I did not describe properly how I ended. Starter relay is clicking but engine is not cranking. (note that the background noise is the building ventilation, not my bike). More strange, it's impossible to jump start the bike because as soon as I release the clutch, the bike stops violently (like something mechanical preventing the bike from moving). I googled/youtube'd "motorcycle relay clicking" and found the following possibilities (which I believe does not explain my originally RED LED flashing but nevermind) : - bad starter relay - bad connections between battery / starter relay / starter / ground - bad starter Can starter be blocked and that prevents the bike to be jump started? Thanks for your help.
  11. bdouvill

    Hello from Oxfordshire UK

    Welcome here, I am restoring a 1993 3rd gen that is fortunately in a better condition. I am also a daily driver of a Suzuki Bandit 400 from 1992 so I've searched greybike forums quite often. Let see what you can do with this bike 😉
  12. bdouvill

    Super weird starter issue

    Hi @GreginDenver, So happy to see you here 😉 I see you are still enjoying both the your Bandit 400 and your VFR. I did not enjoyed my VFR too much (only 250 km until now) but that will change soon. What you said is making sense (as well as @airwalk). Thanks a lot. Some news. Bike gods were either against me today or they prevented me from going to something really bad, who knows... Anyway, when I got back to my bike today, I smelt gas and found that I let my petcock on PRI for the last 24h so obviously some leaked into the engine and contaminated the oil. If I was not completely stupid, I should have stopped there and called my wife to pick me. But I tried to play my chance and come home gently (understand without revving the engine too much). And then... bam impossible to start the engine, like a real short circuit in the battery. That was it. I intercepted a colleague (and very good friend of mine) to pick me home and tomorrow, I'll go with a brand new battery and enough tools to make an impromptu oil change at work (not sure security will appreciate). Then next on my (Bandit) maintenance list is: new spark plugs + new spark plugs covers (OEM) + new coil wires. I don't remember how old are my NGK Irridium spark plugs because I started my maintenance Excel sheet long enough after I installed them but they have a least around 24 000 km on the clock (maybe close to 30 000 km) which might be like (way) too much. I keep you posted.
  13. bdouvill

    Super weird starter issue

    Hi guys, Problem is happening on my 1992 Bandit 400, not on my VFR 750 but I cannot find out what is wrong so I am asking for help to all tech gurus spending some of their time here 😉 Bike is 26 year old, 101 000 km on the odometer. In the 8 years of ownership, I synch'ed the carbs many time (improving my technique each time), I have rebuilt the gear box (faulty output shaft bearing) and more. Work(ed) like a charm until it spent one night outside more than 2 weeks ago (so late October): bike was under an external shelter, outside temperature at night was probably around 10 deg C, some humidity in the air. I live on French Riviera so temperature had nothing to look like Alaska nor humidity like Borneo or Java. It should not have been an issue. Here are the symptom: 1/ most obvious: instead of requiring to press the starter only once, it now needs to press it 4 (long) times until it fires. Then it fires shyly to warm almost normally. So once started, everything seemed fine. 2/ since that happened (almost 3 weeks now), I noticed it does not fire 100% correctly so I can ride it gently as usual but it does not rev correctly when I rev it hard (which I never do). 3/ Now the super weird symptom: I have a C-Tek battery charger and a comfort connect indicator like this: https://smartercharger.com/accessories/#CTEK Comfort Connect Indicator Eyelet I noticed that once the bike is started, the Green LED is flashing (hopefully since the Reg is directly connected to the battery and is sending up to 15.0V to it's doing its duty) but at the same time, the RED LED is lightly lighting with intensity increasing with REVs (see the picture)... that is making me crazy. Battery is almost 2 years old and is cheap Chinese battery (less than 40€). Super funny: it is super hard to start with the starter but when I push start the bike, it fires within one second... So I am leaving with it since 2 weeks and a half now. #1 made me think about an air leak but that would rather happen when hot, not when cold. Furthermore, the bike does not die when warm. #2 made me think about fueling issue like enough to start but not the rev it properly but this is not really the case, I have probably ridden it for 200km since that. Poor fuel flow should have been more obvious (I think). #3 made me think about a current leak. That happened to me once and was more obvious: some sparks were going out of the spark wire to the engine case and I had the bike that rattled. I saw it (I mean I physically saw the sparks going to the engine case), replaced the wire and that was it. I spent 3 hours on Sunday to find such a current leak but did not find. I exchanged/swapped all 4 spark plugs, the spark caps and the wire but nothing changed. The RED light is still ligthly lightening when the bike is running. I tested with the stator disconnected but then only the RED light is fully on because I am draining the battery to run the bike. What I have not done is replacing the battery. I have no idea how I could spot some battery internal part that should have been damaged. I have an old battery that have been replaced because it did not hold the charge anymore but I believe the internals were not damaged (no shortcut or something similar). I am charging it fully today and will try tomorrow to determine whether the battery might be the cause or this should be something else. What do you think about my situation? Any clue about what could be the root cause? Other options are: - replacing the harness because I have another one in better conditions - buy brand new spark plugs caps because those are old. I also bought some NGK but they are too short, the angle is too close from the engine so they does not fit 100%. - buy new coils? I have no spare. - finish restoring my VFR (this is on-going) - buy another bike Thanks a lot in advance for your answer(s).
  14. bdouvill

    Gear Indicator

    I found what I was looking for. It's the item #19 on this page. Should be direct swap for 3rd gen.
  15. bdouvill

    Gear Indicator

    I only rode my 3rd gen for about 250km and I have reopened the engine so won't be riding it for a few weeks. I have no clear view of which dash I 'd like to use but I noticed the speed indicated in the original 3rd gen dash is for from being accurate (at least on my bike). Seems like when I am riding at something that feels like 20kph, dash tells me something like 40kph. Not the best since I want it to be my daily ride to go to work and beyond. I need to put it back on the streets and do a basic speed comparison with any mobile phone app so I have a clearer ideas. I really like what @douglasthecook did with his 4th gen because I really like the CBR 1000 dash (from 2008 to 2012). Also seems like @SoCal97VFR option to use 600 CBR dash is pretty smart since you can keep the fuel gauge. Will probably go for one of this two options. In all cases, I'd like to use Honda parts if they are direct swaps. So far, I quickly browsed the microfiche. Of course, sprocket covers have different references between 3rd gen and 4th gen like almost all engine parts but it does not 100% mean they are not interchangeables. My problem is that I don't see where the you'd connect a wire on the 4th gen sprocket cover to get the speed signal. Most obvious reason might be that I am not looking at the right place 😉 Any idea where this sensor might be?

Important Information

By using this site, you agree to our Privacy Policy.