'79 GS 425E - First build

[SVSooke]

I thought my 1000 carbs where bad!Actually they where,varnished to immobility.Did not look like that inside though.Looks like you have just a bit of a project there.Be interested to see how it goes.

 

[midnight_marauder]

The Yamalube carb cleaner arrived today. Very excited. Two problems that have arisen though. 1: Pete, you asked this very same question, is it 2 parts cleaner to 1 part water, or 1 part cleaner to 2 parts water (as per the bottles instructions)? and 2: My throttle valves are dead stuck. The CV boots are rooted any way. Should I just chuck it all into the mix and see what survives? or should I endeavor with my struggle and set them free? HEEEEEELLP!! As you could imagine.

 

[Guest]

Well according to post #550 in my rebuild thread (just trawled through it again... sheesh) I used 2:1 Yamalube to water, so 500mL's water in with the whole bottle.

Because I was boiling though, I had to top it up with water at one point due to evaporation.

Just remember... this stuff stinks!!!! Not the best fumes to be breathing I would imagine, especially if simmering away...

 

[midnight_marauder]

Cheers mate. I'll get onto it this weekend and post the results.

 

[Guest]

Cool, looking forward to seeing how you go.

 

[midnight_marauder]

I tell you what. Its been a busy past couple of weeks. Work on the bike has been slow going when I get the chance! But I am making some progress. Some. Almost considering throwing in the towel on the carbs, but we'll wait and see after tomorrows day of work... I'll put some more photos up soon to show you what progress has been made so far.

 

[Leigh]

Wow that's bad! In all the dodgy carb threads I've seen here I don't think I've seen one quite like that... I think Mike's got the nail on the head with the cookie dough...

Get yourself down to your local Yamaha dealer (yes I said Yamaha) and get a bottle of their Yamalube carb cleaner. Good stuff and will clean those right up...

Bugger, too late.
I highly recommend the CRC carb cleaner or the Inox brand version.
Don't get it near paint, skin, pets, fireplaces, etc..
It's good stuff.

As for cookie dough, the only time I've seen carbs that bad was when an old drag racing mate was told to slip a little methanol in his tank.
He applied More's Law (If some is good, more is better) and the carbs filled up with sticky green jelly.

G'day MM..
Mate you have a chore in front of you. I won't tell you to chuck it and buy something done.
Stick to your guns and you'll come out with something you can boast about for a long time.
A slab is a fair price.

PS Whats a slab of beer. Sounds like something the Eskimos drink i.e. a brick of frozen beer.

Spyug, a slab is the unofficial currency of this country. It's 24 cans or stubbies (375ml or 12.7oz bottle) of delicious beer.
There is nothing you can't get done here for a slab.
It's like a thank you card for blokes.

 

[Guest]

I tell you what. Its been a busy past couple of weeks. Work on the bike has been slow going when I get the chance! But I am making some progress. Some. Almost considering throwing in the towel on the carbs, but we'll wait and see after tomorrows day of work... I'll put some more photos up soon to show you what progress has been made so far.

Mate progress is good, stick with it

I've found myself seemingly up against brick walls with no time to spare etc. only to realise I could still do this one little bit here or there which means one little bit less to do later.

I've been attempting to do at least one thing no matter how small each night. That hasn't worked the last few days because I've been feeling like crap, but usually it works well and can really help reveal that light at the end of the tunnel... it's not always a freight train hurtling towards you

Looking forwards to the progress pic's and when you get this done you will feel incredibly satisifed with your efforts and wonder why you ever doubted yourself

Bugger, too late.
I highly recommend the CRC carb cleaner or the Inox brand version.
Don't get it near paint, skin, pets, fireplaces, etc..
It's good stuff.

As for cookie dough, the only time I've seen carbs that bad was when an old drag racing mate was told to slip a little methanol in his tank.
He applied More's Law (If some is good, more is better) and the carbs filled up with sticky green jelly.

G'day MM..
Mate you have a chore in front of you. I won't tell you to chuck it and buy something done.
Stick to your guns and you'll come out with something you can boast about for a long time.
A slab is a fair price.

Spyug, a slab is the unofficial currency of this country. It's 24 cans or stubbies (375ml or 12.7oz bottle) of delicious beer.
There is nothing you can't get done here for a slab.
It's like a thank you card for blokes.

+1 on sticking to your guns! Get it done, you won't regret it

And love your slab currency explanation Leigh, couldn't have put it better myself!

Thank you card for blokes... haha that's just gold and the most perfect description ever...

 

[midnight_marauder]

Thanks for the pep talk Pete. Always appreciated mate. Updates are slow, I apologize. Just wish life would get the **** out of the way so I can make some progress. But baby steps are probably best anyhow.

I've put together a list of parts that need replacing in the carburettor. Again, baby steps. Just focus all your efforts and attention into one part at a time.

// FIG. 12 CARBURETTOR

All gaskets, o-rings and rubber tubing need to be replaced.
All screws and lock/regular washers need to be replaced.

3 - 13551-44010 x 2
4 - 02122-03088 x 4
5 - 13500-44050 x 2
10 - 13376-65010 x 2
12 - 13392-16600 x 2
13 - 13269-44012 x 2
14 - 13268-44012 x 2
15 - 13251-44012 x 2
16 - 13247-32210 x 2
17 - 13246-44010 x 2
18 - 02112-44010 x 8
19 - 08321-21048 x 8
20 - 09492-22004 x 2
21 - 09494-00181 x 2
22 - 13295-31210 x 2
23 - 09491-22010 x 2
26 - 13683-45070 x 2
27 - 02112-05168 x 8
28 - 08321-21058 x 8
29 - 13683-44010 x 2
30 - 13436-44010 x 2
39 - 13683-31600 x 1
42 - 13276-31210 x 1
43 - 02112-06128 x 4
44 - 08321-21068 x 4
46 - 13605-31210 x 2

Looking at all those numbers and thinking. "****! Thats just for the carbs?!" But it's mostly screws, washers, gaskets and o-rings. Also some of the more delicate parts like the jet needles. Just cos. I'm also wanting to replace all the screws and washers because they are the most essential pieces of the puzzle that will be holding this thing together. Not knowing the official service history of this thing or the age of the parts, I'm assuming that they are as old as the bike herself. And therefore have been structurally weekend due to heavy riding and stress from all the vibrating they have taken over the years. Which will be a general rule that I will be following throughout the build. I'm also planning to ride her pretty hard, so better to be safe then sorry.

After all that, the carbs are actually coming along pretty nicely. The Yamalube Carb Cleaner is all but spent and not quite everything has been removed. It's mostly greasy residue. So the next plan of attack is to soak them in petrol, give em a spray with both an engine degreaser and another can of carb cleaner. They should be looking pretty shinny and new after that. At least the inside will. Not to concerned about the exterior.

And yes, more photos are coming. **** I'm slack...

 

[Guest]

Mate this is good progress

Don't worry about replacing the jets, just clean them, they're fine and don't wear out or whatever. As long as the passages are clean it's all good

As for the screws, stainless allen heads look the part, but make sure to use anti seize on the threads.

Definitely do the gaskets and things though, well worth it at that age

 

[midnight_marauder]

Right on Pete. Gave the carbs a good cleaning out with a bottle brush, tooth brush and some q-tips. Got all the passageways just about clear and clean. Its the main chamber that is giving me the most headaches. It looks as if there is some corrosion (etching) in there. That or its just caked on so bloody hard. Gave it a quick dry scrub with the tooth brush just before and that seemed to help. Now I've got those babies soaking in 4 liters of that purple goodness.

Just a thought. Is it possible to recycle the petrol that I'm soaking them in? Or is the residue of the carb cleaner that is dissolved in it going to **** with everything? Just a thought.

 

[midnight_marauder]

Just going back through the posts to see roughly when I started soaking the things. They have been submerged fully for a few days short of 4 weeks and could probably do with another day or two.

 

[zeebob]

thats a long...

thats a long...

row to hoe, stay strong.

I have a 425 myself and 'm lovin it. It's my first bike and I got nothing to compare it to, but once it gets rolling it's a blast to drive, handles great.

was wondering what kinda faring that's in the foreground of your avatar picture. I was thinking of adding one to mine.

regards
Z

 

[midnight_marauder]

Its custom, apparently. Thats what the previous owner told me. It looks pretty custom too if you get my meaning. I'm not planning on using it myself since it was made to fit the bike with clubmans attached. Oh and don't even get me started on the paint job. Hippies shouldn't be aloud to own bikes. Or at least earn enough money to be able to afford the paint...

 

[Big Rich]

This is optimism at it's finest.......i like it!

Just work on one thing at a time, you'll get this done.

 

[midnight_marauder]

I've got to be optimistic about this. If you could see this hunk of junk in person you'd understand. Its the only way!

 

[Guest]

Hahahaaha mate you sound like me and my fibreglass tail piece... optimism is the only way I'm gettin' through that too!

I wouldn't be reusing that fuel if I was you, not only does it have carb cleaner in it but it has remnants of whatever crud is still causing you grief in there. I wouldn't wanna put that back through them after I just finished cleaning it out of there...

The other mixture I believe is 50/50 fuel and metho...

 

[midnight_marauder]

Yeah, its a bitch. But its all fun and learning. I've decided, after all options are spent, I'm just gonna slap it back together and aim to get her running in the end. This is an educational toy after all .

What to do next then? Maybe the camshafts. Kinda work my way down.

 

[Guest]

Hahaha educational indeed!!!

What do you need to do with the camshafts? Anything in particular wrong with them?

 

[midnight_marauder]

Thought I'd give them a tidy up. Quite a bit of rust and build up going on. The plan of attack for this project is to just tear through the whole thing and see what needs fixing, cleaning and replacing.

Any tips as to how I should go about handeling the camshafts?