Project MTX........

frazer1981 · Nitrous Nuisance Joined: 04 Oct 2008 Karma :

Ok i have a mtx125 rwl on a J plate (92 model) and have decided it's time for a complete rebuild from the ground up.

Have decided on a plan of action for this project which goes like this.

1- Total strip down of bike, removel of engine ETC
2- Get to the bottom of the running problem it has, most evidence points towards the woodruf key snapping that holds the fly wheel on which let it rotate slightly on the crank changing the igition timing.
3- Total repaint of the frame from white to black. White as you may already know white is a bitch to keep clean.
4-replace steering bearings, swing arm bearings.
5-New con-rod, bottom end bearings, top end job and rebore to boot.
6- New plastics side panels, headlight cowl etc etc.

I have even looked into getting a set of USD forks from a 92 cr 125 and a swing arm as well so at least there,s disk brakes front and back instead of drum on the rear but that is something i am going to have to resarch ie measurement and fitment.

I intend of posting pictures as well so that you guy's can see the progress but i need to work out how to post pictures. If anybody here has any knowledge of the mtx then any hints or tips would be great.
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1st bike - chunlan starway 50QF4 (SOLD) 2nd bike - 92 Honda mtx125RW-L ( In my garage awaiting some TLC)
05 Honda xl125v Varadero stolen and recovered but now a write off! Sad

07 Hyosung GTR125R

satelliteone · Nitrous Nuisance Joined: 08 Feb 2007 Karma :

ideal. Nother little bike on the revamp. get some pix of the mtx up, be great project. Any nice colour ideas and grafix?.

im using a spare room in a part of a house, its not the best condition to fix up bikes. God wished i had decent garage. Its the situation iam in. If only..!..lol
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Honda XLR125R - Project
TZR125RR Belgarda 4DL - Sold
Chinki Project done n Dusted/sold** DTR125 2003 - Finished/sold

frazer1981 · Nitrous Nuisance Joined: 04 Oct 2008 Karma :

Wheel my garage is not exactly perfect to work in no heating or lighting.. Yet Razz

Some links to some pictures of the mtx on bike pics. Some of them are a few months old but there 2 recent 1's taken the day before it started playing up.

Links.

https://www.bikepics.com/pictures/1241640/

https://www.bikepics.com/pictures/1241641/

https://www.bikepics.com/pictures/1241642/

https://www.bikepics.com/pictures/1241643/

https://www.bikepics.com/pictures/1271606/

https://www.bikepics.com/pictures/1438403/

https://www.bikepics.com/pictures/1476725/

In terms of graphix's or colour it's either going to be new red plastics and i have also looked on the D&D graphics site and contacted them regarding some union jack graphics custom made for the bike or some st george graphix's that they do. If not i know somewhere that i can get brand new plastics from any way and i think if i change the colour of the bike i will have to let the DVLA know and can't be bothered with the fuss of that, but will see once i am ready to make those decisions.

Satelliteone have you checked out the D&D website they do some nice graphix's for the DTR. Just thought you would like them for your project???

Link - https://www.ddgraphics.co.uk/index.php?cPath=2_9&osCsid=b45207fe3f89081196d181abce34b75b
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1st bike - chunlan starway 50QF4 (SOLD) 2nd bike - 92 Honda mtx125RW-L ( In my garage awaiting some TLC)
05 Honda xl125v Varadero stolen and recovered but now a write off! Sad

07 Hyosung GTR125R

frazer1981 · Nitrous Nuisance Joined: 04 Oct 2008 Karma :

Started stripping the bike down today. Got as far as taking the engine out everything else like plastics, tank, seat etc etc removed as well.

There where several parts that where a bitch to get off. The air box and battery holder are a one part moulding and it was a nightmare to get off the frame as the rear pillion pegs where in the way so had to take them off and the 2 stroke tank just so i could turn and get the airbox out ( thought id be able to get the airbox off 1st before the 2 stroke tank)

How do i post picture's in my post's, so don't have to put links for them ??
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1st bike - chunlan starway 50QF4 (SOLD) 2nd bike - 92 Honda mtx125RW-L ( In my garage awaiting some TLC)
05 Honda xl125v Varadero stolen and recovered but now a write off! Sad

07 Hyosung GTR125R

frazer1981 · Nitrous Nuisance Joined: 04 Oct 2008 Karma :

Still have 1 more day off work so tomorrow's plan is to get the engine out swing arm off and inspect eveythin on the frame ready for stripping and repainting.

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1st bike - chunlan starway 50QF4 (SOLD) 2nd bike - 92 Honda mtx125RW-L ( In my garage awaiting some TLC)
05 Honda xl125v Varadero stolen and recovered but now a write off! Sad

07 Hyosung GTR125R

satelliteone · Nitrous Nuisance Joined: 08 Feb 2007 Karma :

i have seen them GFX, and have an eye on them. Would love the union jack one. Think it wuuld look the dogs.

your cracking on a bit, cool. Are you thinking of getting the frame blasted then painted?. Takes bloody ages for nut n bolt rebuilds. Have a look at my GP100, thats 2 weeks work so far. not enuf hours in one day..lol

the DT is on hold, the idea is to sell on the GP when ive finished to fund the DTR a little.
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Honda XLR125R - Project
TZR125RR Belgarda 4DL - Sold
Chinki Project done n Dusted/sold** DTR125 2003 - Finished/sold

frazer1981 · Nitrous Nuisance Joined: 04 Oct 2008 Karma :

Quick update..

Today after not much activity on the bike i managed to get the engine out of the frame. One of the nuts on the middle engine mount was mullered so thinking somebody else has had the engine out at some time in the past. Enigne out shock off as well. Have made a list of what needs doing and what i need to get.

Short list below

1, Complete engine gasket set
2, Swing arm bearings and seals (full set)
3, New or serviced rear shock.
4, Fork seals and oil and gators
5, New plastics maybe

I have also got a swing arm and a rear brake caliper from a 92 cr125 which will fit the mtx although looks like i may need to make some spacers and stuff, as i intend to make it a supermoto and can't do this with the drum brake set up on the orignal swing arm.

Also looking at a set of USD forks from the same cr125 the swing arm came from. Would i have to replace the whole front end for these to fit??

Couple of questions.

Can i use a heat gun to strip the paint or will this damage the frame?

Can i use a wire wheel in a drill to strip the frame paint if i cant use the heat gun or failing that some paint stripper ???
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1st bike - chunlan starway 50QF4 (SOLD) 2nd bike - 92 Honda mtx125RW-L ( In my garage awaiting some TLC)
05 Honda xl125v Varadero stolen and recovered but now a write off! Sad

07 Hyosung GTR125R

ben350 · Trackday Trickster Joined: 29 Apr 2008 Karma :

Speaking from experience it will look better / take less time / maybe cost less just to get it powdercoated instead of painting it.
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Ducati 996 Biposto
Suzuki Goose 350
DT125R Supermoto (Project)

Fnatic · World Chat Champion Joined: 11 May 2008 Karma :

100% Powdercoat it all.

Doesn't cost much and better finish than you painting. Probably works out cheaper in terms of how long it'll last.

400bandit · World Chat Champion Joined: 21 Dec 2005 Karma :

Go with the powder coating, whilst you're at it get it blasted, paint stripping in my experience is a right arse and to get a good finish, it needs to be done all the way back. Probably won't cost much to get it blasted and powder coated either? talk to Mugenseiki (the guy with the DT, he's just had his done

Joe
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Current Bikes 650 Honda Bros, VTR1000 Firestorm // Past Bikes: Sachs Madass 50/110cc - Bandit 400 - FZR750
(+ a XS650 in lots of pieces in my garage and other places...)

element · World Chat Champion Joined: 23 Jan 2006 Karma :

sandblast and powdercoat is £90 down here in plymouth and thats only an industrial finish aswell...
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04' DT125RE (run-a-bout) // 89' DT125R (rebuilt + supermoto conversion)
SPARES FOR SALE. 2RK TZR // 82 DR125 // DT125R/E .... PM ME...

0ddball · World Chat Champion Joined: 15 Jul 2005 Karma :

Ah so that's what it was. I had one of these when i was about 13 but it was a tatty hand painted field bike so i never knew what it was. Thumbs Up

ben350 · Trackday Trickster Joined: 29 Apr 2008 Karma :

I had a DT200WR frame and swingarm coated here in Nottingham for £60 (cash)
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Ducati 996 Biposto
Suzuki Goose 350
DT125R Supermoto (Project)

gwernybwch · Nova Slayer Joined: 30 Jul 2008 Karma :

Nice rebuild so far. But no update for a while?

frazer1981 · Nitrous Nuisance Joined: 04 Oct 2008 Karma :

Quick up date on the project. Due to work comitments i have not had the time nor money to do anything to the bike, untill yesterday.

I have cleaned the frame down and the swing arm ready for stripping and painting. I took the head of as well yesterday to inspect the bore and piston and there is not a single mark on the bore or the piston. No side to side play on the conrod either.

The only problem i have is the forks. They are pretty much dead. The seals are errrrrrr....... well no seal at all will post pictures later.

Nearly every bearing in the rear suspension needs replacing along with the shock as well.
Will post some pictures when i get home from work.
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1st bike - chunlan starway 50QF4 (SOLD) 2nd bike - 92 Honda mtx125RW-L ( In my garage awaiting some TLC)
05 Honda xl125v Varadero stolen and recovered but now a write off! Sad

07 Hyosung GTR125R

Benman · Renault 5 Driver Joined: 27 Aug 2012 Karma :

Update?? Pics???
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Ben1972

Hobgoblin · Trackday Trickster Joined: 05 Feb 2012 Karma :

https://ct.fra.bz/ol/fz/sw/i52/5/6/17/frabz-dafuq-93bd40.jpg
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Plodding along on my CG