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Ducati 748S

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  • MVLUV
    replied
    First thing I thought would be a good idea is to give them a good scrub and degrease.
    Then hang out to dry.
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ID:	7115576 the next bit didn't hang for long.
    Fuck it. Click image for larger version

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ID:	7115577 so the first job is some plastic welding.

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  • MVLUV
    replied
    Have had a chance to start on the panels this week. I am by no means a paint and panel guy this is my first foray into this area. I have a mix of carbon Kevlar, plastic and a dent in the metal tank.
    The plan is to use fibreglass reinforced bog for the carbon bits, and compatible big for the plastics and the tank. That's the plan any way.
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    Attached Files
    Last edited by MVLUV; 21-02-20, 07:30 PM.

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  • MVLUV
    replied
    After 2 years it will be due for belts and check the rocker arm surface as well. Fuel filter is a good idea and check throttle bodies, lines, fittings. I don't hold a lot of faith in the plastic quick connections after 20 years. Here are the stainless ones I replaced with. Same manufacturer by the look of it too.
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  • im_boostn
    replied
    Originally posted by MVLUV View Post

    I think it is just 25 years worth of rust from the tank that accumulates there under the pump strainer.
    As for your idle issue what sort of service history does it have?
    Last service was 2 years ago and stored away.

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  • MVLUV
    replied
    Rear brake master assembly mounted back up. Thanks to Gamma for the perch and lever that I still owe a 6 pack for.
    Before.
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    Click image for larger version

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  • MVLUV
    replied
    Originally posted by im_boostn View Post
    What happened there? My one won't idle and just stalls after a minute. Planning to do a service once the spark plug tool comes, none of my spark plug tools fitted. Might have to look at the fuel filter. Rear wheel isn't spinning freely as well sigh..
    I think it is just 25 years worth of rust from the tank that accumulates there under the pump strainer.
    As for your idle issue what sort of service history does it have?

    Leave a comment:


  • im_boostn
    replied
    What happened there? My one won't idle and just stalls after a minute. Planning to do a service once the spark plug tool comes, none of my spark plug tools fitted. Might have to look at the fuel filter. Rear wheel isn't spinning freely as well sigh..

    Leave a comment:


  • MVLUV
    replied
    Also found this in the fuel pump well.
    Click image for larger version

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  • MVLUV
    replied
    Filter and throttle bodies remounted and new lines cut to length.
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ID:	7100181 Also mounted the front brake calipers.
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  • MVLUV
    replied
    These things have a fuel filter inside the tank.
    Click image for larger version

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    For ease of maintenance, potential fault finding and replacement cost I thought I would relocate it outside. So a commodore filter and submersible fuel line was purchased.
    I also made a bracket which seems to be a thing at the moment.
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    Cut out all the old lines, bypassed the old filter.
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  • MVLUV
    replied
    Also started diving into the brakes, they felt ok but $50 for a seal kit seemed like a good idea. Also a good chance to clean them as a prior moron had obviously painted the wheels without taking them off the bike. Needless to say calipers, forks, disc carriers had paint all over them.
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  • MVLUV
    replied
    Samco coolant hoses arrived. I used these on the RGV and they were perfect, and as the original hoses looked a little sad I thought I would go with them again.
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    Exhaust flange gaskets also turned up so on went the exhaust system. Click image for larger version

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  • MVLUV
    replied
    It was evident the charging system was not working when I got the bike as it would struggle to start and a voltage check when I did get it running was around 12v regardless of rpm.
    Starting at the front I disconnected the stator from the regulator rectifier and the plug had been cooked at some stage. Click image for larger version  Name:	IMG_20190411_090011.jpg Views:	0 Size:	649.1 KB ID:	7082396Click image for larger version  Name:	IMG_20190411_090020.jpg Views:	0 Size:	761.7 KB ID:	7082397
    Cut them off and did a shonky temporary connection but it wasn't the culprit.
    Disconnected again and tested running ac voltage from stator. 22 Vac idle and 65 Vac at 5k rpm. That seems ok to me so next was testing the diodes in the reg/rec and sure enough one was crook.
    Did a bit of research and seems a MOSFET type reg/rec is a reliable upgrade.
    SCR (original) and MOSFET are both shunt type regulators, however the switching of power to the battery when charging is required and to ground when charge voltage is reached is faster and uses less current. This results in more stable voltage and less heat generated by less switching current.
    The standard wiring uses two small guage cables tee'd into the positive and negative main wires as shown.
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    The kit I got with the reg/ rec came with large guage cables and suggested terminating straight to the battery. Sounds like a good idea.
    Click image for larger version  Name:	IMG_20191003_211015.jpg Views:	0 Size:	1.04 MB ID:	7082399New reg/rec installed and red Lego brick looking thing is a 30A circuit breaker on the positive supply to the battery.
    Last edited by MVLUV; 14-10-19, 06:44 PM.

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  • MVLUV
    replied
    Underneath is a good giveaway. The cheap carbon ones are fibreglass or Kevlar reinforced. OEM are ABS plastic.

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  • im_boostn
    replied
    Must be R, I'm pretty sure mines factory fairings but they aren't carbon. Not really sure how to tell apart from sanding the paint down.

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