broken undertray

[mobile mouse]

Hi,

Over the weekend I dropped the bike in slow motion, I put the side stand down and when getting off the bike it, the bike rolled fwd off the stand.
So while stepping off I had the unfortunate task of trying to stop the bike from dropping to the floor.
Ultimately the bike lay down on the engine bars and saved the front. but the rear left indicator touched down onto the kerb stone and punched through the undertray.

I gaffer taped it up and the other night had a go at using PVC pipe weld to fix the broken plastic.
It worked in some areas of the break but not all.

Has anyone attempted successfully to repair something like this. And how did you do it.

I have seen used undertrays going for £40 approx.
If I cannot repair how easy is it to replace it looks a complete strip down of the rear of the bike. Is it a 5spanner job.

What do you think repair or replace.
Has anyone attempted this replacement before and are there any pitfalls.
Help would be much appreciated.

[Dave48]

Its always a pain when something like this happens-lucky you had engine bars-could have done a lot more damage. :eek I have repaired small cracks/splits using superglue & then running along the inside of panel with soldering iron to melt/fuse the plastic.
If you decide to replace rear fairing-raise seat-you will see 4 bolts holding to frame. Not a difficult job to remove just exercise care! Also on underside of fairing you will have to remove 4 fasteners-use the correct size crosshead screwdriver as these sometimes rust in. Put a dab of copper grease on threads when replacing.

[limax2]

Using a soldering iron to weld it is a common method of repair. Use another bit of the same sort of plastic as a filler if needed. You could practice with some scrap plastic first.
If it is just in the indicator area you could maybe cut out a backing plate from thin aluminium and stick it in place with araldite or some good silicone glue.

[mobile mouse]

FYI it's a foxeye 2003MY.
I have had the rear fairing off once before to replace the Meta alarm situated in the space behind the rear tail lights.

I noticed that the ECU,the rear tail lights, the battery and starter relay assembly all sit in the undertray.
It all looks a lot to take in and once removed to remember to put it back correctly.

[Motorbreath]

Years ago my undertray had a large crack at the storage place. I glued it with a really good glue and it has resisted from then, including heavy stuff like a big chain. I do not remember its brand. It was a kind of hard plastic glue which has two components: a common liquid one and other that looks like sand. It doesn't look pretty though.
My front mudguard is repaired with fiberglass -a chunk of plastic went off, one of the screw holes was missing- and kind of fiberglass glue. It has resisted for months now.

Sorry about the missing brand names, those glues weren't mine. But I encourage you to try some good glue.

[69oldskool]

Getting the rear fairing off is the hardest bit, & as you've done that before you shouldn't have any problem replacing.
Undertray comes out suprisingly easy once you can get to it.

Check all lights work correctly before replacing rear fairing~someone got their L&R indicator wires swapped over & had to take it apart again. :o

[mobile mouse]

Hi,
I was advised at the local MOT station that undertray where the indicator fits and is broken is a MOT failure. Gaffa taping it up would not pass the MOT.
So I watched half a dozen YouTube video's on plastic welding with a soldering iron.
I also used half a dozen black tie wraps on the back face were the cracks were welded up.
So Far so good, we shall see if it stands up to the British roads......