kaldek

October 24, 2005

Has anyone used the smaller bottle and had any over heating issues?

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The Moko brand (GSG Moto) frame sliders have an optional coolant bottle mod - it's a very small (less than 500ml) tank. Every time I've read about installation, people seem to have decided not to use the small tank because they are worried about overflow. I think the only way to be sure is to get your bike really hot (so that the fans are seriously working out) and watch what happens to your existing coolant bottle; i.e. does it fill up or do nothing.

Kaldek

October 24, 2005

One piece of advice for anyone going to fit them, you should be able to get PVC piping from your local hardware store that exactly fits the frame sliders through with no room to spare. This is what I used for the coolant bottle mod.

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Yeah that's standard 50mm PVC pipe. I went through the local "Bunnings" (the biggest hardware chain where I live) with one of the sliders, looking for solutions. The PVC pipe seemed to be the best solution at the time, but then I decided not to use it for the following reasons:

1. The fit was so tight that any mistakes in fitting it would cause problems

2. The PVC pipe is very rigid and has no give in it. Coupled with the extremely tight fit, I was worried that vibration might break whatever glue seal I put in place to keep the coolant water in.

Kaldek

October 24, 2005

I have just finished fitting my Motovation brand frame sliders to my VTEC. It was a pretty easy job in the end - so long as you have the cojones to drill your fairing you should be right as rain.

Here is a quick rundown.

Tools you will need:

- Dremel with grinding wheel or sanding drum

- 54mm hole saw (for radiator bottle)

- 51mm hole saw (for fairing)

- Some silicon sealant

What you will receive:

Two frame sliders (identical)

Two mounting bolts (one longer than the other - this is normal!)

Make sure the bike is on the centrestand on a level surface so that you don't drill holes on funny angles!

Stage 1 - The coolant bottle!

Fair dinkum, this is the hardest part of the job, which is a good thing because your fairings are what you want to worry about.

First, start by removing your fairings. On the left-side of the bike, we need to mark where to drill the hole in the coolant bottle, so remove the bottle and then loosen the engine mounting bolt. Mark the tip of the bolt with paint or something else that will create a good mark, and spin the bolt out a little. Re-mount the coolant bottle and push it up against the bolt-head so that the bottle gets marked with the paint. Remove the bottle and then mark the middle of the circle of paint.

Take the bottle to a flat surface, and use a 54mm holesaw to drill a hole right through the bottle - using the centre of the painted circle as your pilot marker.

You now need to fill this hole in with a cylinder/sleeve of some sort. I used the cap from a spray can, which I cut down to size by slicing right through it and sliding it into the hole even though it overlapped itself a bit. Once I could see how much to remove, I cut it so that there was only a 5mm overlap, and then glued this cylinder of plastic back together before sliding it back into the coolant bottle.

It is unlikely you will find a plastic that will readily glue to the plastic that the coolant bottle is made of, so I recommend using silicon. It's waterproof and rubbery so that the join won't crack during vibration. Once the silicon dries, fill the bottle with water and see if it leaks. Note that if your cylinder/sleeve is made of thick plastic, you may need to enlarge the 54mm hole in the bottle so that the frame slider still fits through it!