Hard to start after laying up

Discussion in 'Crosstourer' started by Cross Tourer, Jun 10, 2019.

Tags:
  1. Cross Tourer

    Cross Tourer New Member

    Country:
    United Kingdom
    Joined:
    Jun 10, 2019
    Messages:
    2
    Likes Received:
    1
    Trophy Points:
    3
    Apologies this is a bit long but may be of interest to someone.

    Purchased a Cross Tourer - ex demo, and drove it every day (winter and summer) for 8 months, then had it serviced by a Honda dealer and garaged it for 2 and a half years.
    Decided to start it up and found that it would not start easily, and would stick at 2-4,000 revs sometimes, other times would not start, but had an engine warning light.
    Purchased a Healtech code reader on e-bay. The code reader is pretty basic, but what it does do (and makes it very useful) is give you the current and past codes, their description, and real time readings of many (if not all) the sensors, and allows you to clear the codes.
    I got codes 77-1 (TBW return spring failure) and 79-1 (TBW system control correlation failure). The software showed it could detect the throttle position though, so I knew the spring was actually working.
    So I removed the air filter, lifted the throttle bodies, and un-clipped all electric connectors around it including the ECUs , TPS, and throttle motor, and sprayed Halfords contact cleaner on all the connections and allowed it to dry and re-assembled everything.
    This cleared the 77-1 and 79-1 codes, but the bike was difficult to start, and was throwing code 78-1 (TBW motor failure) when it was not working. So I took out all the fuses and sprayed them with contact cleaner that made a slight difference but the bike would not start on cold days. Next I discovered the 3 relays that are in what I would describe as the rear wing, i.e. in the plastic cover that extends out of the seat, on the left hand side if you were sitting on the bike. I cleaned the contacts with the spray, let it dry and put it back together, and hey presto - the bike now starts in all weathers and the throttle operates in a controlled way.

    I hope this helps someone, note none of the connectors showed any sign of corrosion, and it may by the simple act of disturbing them did the trick, but the contact cleaner did no harm at the very worst.
     
    Thumbs likes this.
  2. skimad4x4

    skimad4x4 "Official" VFRWorld Greeter

    Country:
    France
    Joined:
    Jul 5, 2009
    Messages:
    1,774
    Likes Received:
    155
    Trophy Points:
    93
    Location:
    French Alps & London
    Map
    Hi and welcome to the MadHouse

    Cross Tourer models are quite rare so it is good to see some input in this section of the forum.

    Thanks for your insight - I suspect the throttle by wire issues are linked to the extended storage - and as you say just disturbing stuff which has been in the same position for ages may be enough to clear the problem. Hopefully you can now just get out and enjoy riding it.

    One question which sprung to mind about your post is to ask what if any extra steps you took (apart from a service) before you parked the bike up for 2 and a half years? Did you also follow the fairly extensive storage instructions in the owners handbook. I guess at the outset you did not expect to leave the bike parked for all that time, but there comes a time when petrol degradation can become a major issue, indeed fuel tanks can be prone to rust development if left partially filled for extended periods so did you add stabiliser and fill the tank completely.

    PS The folks on here like photos - so don't be shy - its easy - look for the upload a file tab and follow the prompts to upload an image from your computer.

    Take care ATGATT



    SkiMad
     
  3. Cross Tourer

    Cross Tourer New Member

    Country:
    United Kingdom
    Joined:
    Jun 10, 2019
    Messages:
    2
    Likes Received:
    1
    Trophy Points:
    3
    No, I did not follow the storage instructions, as I was shocked to see it was 2.5 years when I checked, as that was not the plan.

    The tank was full, I did remove most of the old fuel before restarting and put 5 litres of new fuel in so that the fuel itself was not an issue. I also noted that there appears to be no fuel filter, or at least I could not find one when searching.

    I did replace the air filter, as that looked well manky, apparently a £200 Honda service does not include an air filter ! I have an after market one, though the fit is not as good as the original so may fit an original.

    There was some rust underneath the tank, but could not see any inside.

    Attached is the air filter removed and a lot of the connectors, the other one is of the 3 relays, the TBW is the third one.
     

    Attached Files:

Share This Page