1978 rm 125c Build Thread

[zwebx]

Not much content yet but i think i got a gem for the price i made a video about the bike to kick off the project
[video=youtube;OrU1hxggB2s]http://www.youtube.com/watch?v=OrU1hxggB2s&feature=youtu.be[/video]
the reason i embed it here and not on /videos/ is because this is going to be my build thread with photos and stuff like that bur have a video every now and again

for the people that cant/dont want to watch the video here is the condition of the bike:
have got the top end off and happy to find a good looking piston (0.25 over) but knackard rings no issues i already have some rings in.. gudgeon pin and needle roller are worn so they need replacing.... cant get genuine gudgeon pin so i will have to get a aftermarket one from alphasports also the carby has a new slide and is looking all good
the bike was running stong untill i decided to change out the gearbox oil and added the correct ammount then it would not run... so i am going to replace the crank seals and see if that makes a big differance

 

[rotn50]

Good one zac, i even saw the chick magnet up against the shed lol. There is still heaps of parts around the world and at times can be a lot cheaper for certain parts then buying locally, check it out dude. Keep us posted on the progress of the old suzi.

http://www.ebay.co.uk/sch/i.html?_trksid=p5197.m570.l1313&_nkw=1978+rm+125&_sacat=0&_from=R40

 

[Tamzy]

Cool Bike, keep us posted!

 

[Chronic]

Awesome!! about to do one myself.
all complete and half your price

 

[zwebx]

Awesome!! about to do one myself.
all complete and half your price

Post pics?
we should meet up at a track and run them together

 

[Chronic]

have a look in my profile garage!

 

[zwebx]

have a look in my profile garage!

im jelly of your tank... did you get a aftermarket or work it yourself?

 

[Chronic]

im jelly of your tank... did you get a aftermarket or work it yourself?

the tank is the stock alloy!!

 

[zwebx]

the tank is the stock alloy!!

are you positive its the rm125c or the 77 model because i am at a understanding that the 1978 is the 1st rm with a plastic tank

 

[zwebx]

Confirmed with google, the 77 rm https://www.google.com.au/search?q=1978+rm+125&hl=en&safe=off&tbm=isch&tbo=u&source=univ&sa=X&ei=PpUoUcSaGrGciAfiz4GAAg&ved=0CC0QsAQ&biw=1280&bih=905#hl=en&safe=off&tbm=isch&sa=1&q=1977+rm+125&oq=1977+rm+125&gs_l=img.3..0i10i24.3336.15694.0.16107.2.2.0.0.0.0.181.355.0j2.2.0...0.0...1c.1.4.img.fZtxaPydXIA&bav=on.2,or.r_gc.r_pw.r_cp.r_qf.&bvm=bv.42768644,d.dGY&fp=22cc96fcf52358ce&biw=1280&bih=905
where as the 78 looks like mine

 

[Chronic]

engine and frame numbers are 78 most of had tank change!

 

[zwebx]

Some new developments 1st
I have a crank case leak into the gearbox making my oil milky and makes it hard to start the bike... time to break the cases open and have a look at the overall condition of the internals because the crank seal on the righthand side is before the bearing therefor making it impossible to flick the seal out without splitting the cases.. oh well...
i may be able to use the current case gasket because all the gaskets i am upto so far look pretty new but i will probably just dump the new ones in that i will have in my $300 parts box coming from alphasports (airfilter crank seals,head gasket, base gasket, gudeon pin and need roller (small end of cause)
Will post pics and or a video as i go

 

[Chronic]

that sucks!

 

[zwebx]

it does, but it gives me a good reason to inspect the gears and whatnot the 1st time i took this bike for a ride i rode her for 1 full tank non stop and noticed the milky oil so i was hoping that it had just been left outside or somthing but it hasnt as because i put new oil in it and filled the bottom end up with fuel and sure enough it drained very very slowly into the gearbox

 

[zwebx]

Allrighty some new photo's (my current webhost wont allow me to embed them here) http://zwebx.com/1978-rm-125-project/ there down the bottom

time to go to another webhost....

 

[Chronic]

im getting ready to strip mine and get the frame powdercoated

 

[zwebx]

how much do you think that will cost you?

 

[Chronic]

i know the blokes and they have been very slack at work lol! beers can do wonders

 

[zwebx]

they wouldnt be able to paint another frame for some more beer would they?

 

[Chronic]

Hows yours goin?? ive been tryin to get mine running but the carby is rooted. and kick start lever is about stripped! so im in 2 minds to strip the engine down and look over it!
Could you still get all the gaskets??