The TRX900 Project kicks off

[coxylaad]

ignore the exausts, they were put there as a visual thing. the full system is from a tdm 900, and I dont think they fit very well - too low and when looking from the rear angled outward.

no good. I may end up going for a kayla 2 into 1 yet.


Re the seating position, I did that based on what you see on the roads today, the seat height on the new R6 is well high. my seat is still lower than my bars.



I am missing the bracing underneath, that will be sorted tonight. more pics to follow

[coxylaad]

Did a bit more on the rear subframe tonight, made the lower support legs, I think its worked pretty damn well even if I do say so myself







ignore the exhausts, they are not attached anywhere and are just hanging under the bike.

I haven't welded the parts of the subframe together yet, that could be tomorrow

[coxylaad]

rear subframe pretty much done now. just some mounting lugs to attach to it.


now that's done I decided to see what I could do with the inner parts of the bodywork - so for the crack I chopped up the remains of the trx rear plastics, and lo and behold it fits perfectly!





worked so well I chopped the battery holder out of the TDM plastics, and thats worked pretty well too! not got any pics of that yet.

[coxylaad]

Small update:
Acquired a thunderace swingarm during the week for £25 quid. So today I pulled the old swingarm off, give that area a good clean and fitted the freshly cleaned thunderace item.

TRX wheel no longer fits so I was about to try and get hold of a thunderace rear wheel when I remembered I hung onto my TDM900 rear wheel. Good old Yamaha have been too lazy to change anything and the TDM wheel fits in there perfectly, and it runs a 160 profile tyres for the purists.






Slowly progressing, Christmas is the planned date to get the bike running.

[coxylaad]

Very small amount of progress.
I've been looking at the chain alignment issue that I have heard about on the 900 conversion.

synopsis: yes it exists.

diagnosis:
Placed a length of straight flat steel bar on the outside of the rear sprocket, clamped it down, measured the difference to where intersects with the front sprocket like so:



thats it at the back. This is it at the front:



so the back side of that steel bar represents the outside edge of the rear sprocket. To get the amount of mis- alignment I need to measure from the outside face of the front sprocket to the back face of the steel bar.

It was 7mm. I planned to make an offset front sprocket in over, but on measuring, 7mm would make the chain touch the side of the engine casing behind the front the sprocket. I only have 2mm of possible adjustment out over on the rear, so the conclusion for me is a 5mm inset front sprocket and a 2mm spaced rear sprocket, no clearance issues and an aligned chain.

To make the front sprocket I am going to bastardise two sprockets, weld them together and mill out the inside face the 5mm required. sorted.

Now all I have to do is get the sodding nut off the front!!!

By the way I am running a thunderace rear swingarm mated to a tdm900 rear wheel.

hope all this makes sense.

[cal]

two scaffolding bars a big socket and a chain, my front nut was unbelievably tight, put a bar through the wheel to the top of the swinger (wraped in cloth) and then put a scaffold pipe over the ratchet, I know your not supposed to do that but seemed to be the only way, anyway 4ft scaffolding pole and it still would not budge,went to the forum to ask advice, went back to it the next day and it was loose...?WTF? I just smiled ..... sprocket faries you gotta love them
Bike is coming on well coxylad the thunderace swinger looks chunky enough and goes with the R1 forks, Keep it up!!

edit; maybe it was under the swinger.. cant remember if thats a left hand thread

[dandywarhol]

It's a conventional thread on the 900 - and I go with the scaffold pipe in cloth to jamb the rear wheel. The skill is to "jerk" the 4 ft scaffold pole to "crack" the threadlock. Just applying more and more pressure just ends up with things slipping and skinned knuckles. so, remember that now Ian - all it needs is a good jerk...................

[Kayla]

Windy gun! Or buy one of these-

http://www.machinemart.co.uk/shop/produ ... ch-kit-12v

and save yourself a lot of hassle

[dandywarhol]

Windy gun! Or buy one of these-

http://www.machinemart.co.uk/shop/produ ... ch-kit-12v

and save yourself a lot of hassle

Hadn't thought of the electric version

[coxylaad]

Kayla kindly let me try one of her awesome 2 into 1 exhaust systems to try on the project.

here it is against the stock 900 headers:




unfortunately they don't fit it would appear the TDM900 sump drops a bit lower at the front, the headers touch the engine where they wrap round the front bottom of the engine. bugger. gutted cos I love them!

[Killerwhale]

That´s why i have a TRX pan on the TDX

[coxylaad]

interesting.

Are they both interchangable? and do the oil feeds differ when you swap the sumps? I don't want them too, I am using the 900 oil tank.

[Killerwhale]

interesting.

Are they both interchangable? and do the oil feeds differ when you swap the sumps? I don't want them too, I am using the 900 oil tank.

Works fine with mine, and i guess there´s where the 0,5L of extra oil in the TDM lurks

[coxylaad]

excellent - TRX850 sump ordered.

now the decision has to be made whether to go 2 into 2 or 2 into 1...

answers on a post card. are there any advantages other than looks for the twin pipes.

[Killerwhale]

excellent - TRX850 sump ordered.

now the decision has to be made whether to go 2 into 2 or 2 into 1...

answers on a post card. are there any advantages other than looks for the twin pipes.

Symmetry only for me as i LOVE loud bikes!