RGV Engine Out Job

[WildGoose]

so i've been really lazy with this so far, i bought it a few months ago, and it seized on the way home from picking it up, was so disenthused given that i hadnt got to ride it yet, that i just let it sit in the garden for a while, also knowing nowt about two strokes it means learning a whole new layout of engine and components from a basic inline 4

this weekend my toolbox finally got the better of me and i set about removing the engine

you can do a top end rebuild with the engine in the frame, but i didnt fancy getting all frustrated with the difficulty whilst trying to fit piston rings and gudgeon pins lying upside down on a cold lumpy concrete floor, so the engine was coming out i decided, at least this way i can see what im doing

i managed to fuck up the right side engine case and clutch cable in the process of removing the engine, the clutch cable has a threaded metal portion on it, that screws through a small outcrop in the engine case to support it (stupid design if you ask me, the first time ive seen it done like this on a bike) i unscrewed it the wrong way introducing tension rather than removing it, whilst trying to remove the clutch cable, hard to explain in words, but it stripped the threads on the engine casing and as it wouldnt screw back in the other way due to stripped threads, to release the tension i had to take an angle grinder to the clutch cable

ordered a new engine case on ebay for 12 quid and a clutch cable, so only about a 20 quid mistake this time, and a lesson learnt

took me about 3 hours in total to get the engine onto the ground, rgv forum members claim times of 50 mins once you know what youre doing, but having removed only a h100 engine previously, im not quite what you would call experienced

the cause of the seizure was a rusty fuel tank, causing flakes of rust to clog up the jets in the carbs, so a newer less rusty fuel tank is on the way from ebay (£45)

ive picked up a new barrel and head as well, so all that remains is the pistons and rings, and associated garb, and a bit of praying that the bottom end isnt buggered at all from the seizure

anyway, some pics attached for your interest, the next stage involves more money for the pistons and stuff, so might be a few weeks, but i shall try and keep you posted how it goes

believe the BCF bookmakers are giving it 5 to 1 that it never makes it back to a serviceable state, time will tell



https://www.bikechatforums.com/files/rgv2.jpg

https://www.bikechatforums.com/files/rgv3.jpg

https://www.bikechatforums.com/files/rgv1_116.jpg
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So in other words, he stopped you for being flagrantly in posession of a motorcycle in direct contravention of the Hippies, Darkies and People Whose Face I Don't Like The Look of (Police Powers) Act. 1976

[Whosthedaddy]

That lil 'ol motor is a completely different shape to an inline 4. I love the look of the old RS250 and RGVs and the likes, but as you have found out as everyone keeps on posting is that they seize and get fooked quite easily. I have barely enough knowledge to cope with an IL4 let alone a 2 stroke.

Should be a nice little bike when up and buzzing again.

Good luck fella
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Current : MSX 125 Past : CBR 900RR Monkeybike : c50 LAC : ZXR750 H2 : FZR600 : ZX7R P3 : YW100 : TRX850: Trophy 900 T309 : GSXR 600 L0: Monkeybike : XJ6S Whosthedaddy

[Dark]

Wow! What a mess, pictures like those make me cringe and hide

Good luck with getting all those pieces back where they should be
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My Bikes in order:- Yamaha RXS100 / Suzuki X7 250 / Yamaha RD350LC / Kawasaki
KR1S 250 / Kawasaki ZXR750 H2 / Honda C50 / Kawasaki ZX7R P5 / Kawasaki ZX10R / Suzuki GSXR 400 / Honda CBR1100 Blackbird & Yamaha FZR 600

[Whosthedaddy]

[WildGoose]

yes it does look horrifying, in fact the first time i lifted the tank and airbox off, i was 5 seconds away from relisting it on ebay, there are just so many control cables, tubes, and wires going everywhere it just looks a complete mess, no order to it whatsoever

but i have the diagrams of the way everything is supposed to route, and once the engine is fixed and back hanging in the frame i guess just taking it very slowly is the way to go

i will be as surprised as you though
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So in other words, he stopped you for being flagrantly in posession of a motorcycle in direct contravention of the Hippies, Darkies and People Whose Face I Don't Like The Look of (Police Powers) Act. 1976

[Whosthedaddy]

Pics, pics and more pics is the best way to go for wires, cables and connectors.

I was shitting a brick when I tried to pluck up the courage when I removed my tank and bits for the 1st time, but when it all goes back you stand back and think 'I did that' with a big old smile on your face.
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Current : MSX 125 Past : CBR 900RR Monkeybike : c50 LAC : ZXR750 H2 : FZR600 : ZX7R P3 : YW100 : TRX850: Trophy 900 T309 : GSXR 600 L0: Monkeybike : XJ6S Whosthedaddy

[NSR Mick]

[Whosthedaddy]

[NSR Mick]

It would be a nice project yes but they can go bang on a regular basis.

Heres the basics of a 2 stroke, notice very few moving parts (newer bikes have powervalves that vary the exhaust port height thats all)

https://i56.photobucket.com/albums/g175/VFR400R/two-stroke_cycle.gif

And a complicated 4 stroke.

https://content.answers.com/main/content/wp/en-commons/a/a6/4-Stroke-Engine.gif
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If you dont like the way that I ride.......Stop trying to keep up!!!

[Whosthedaddy]

I remember watching Scrap Heap Challenge and the little diagrams and animations on the difference between a 2 & 4 stroker, but why do they explode all the time.

It seems every other post in the workshop or newbie section is related to a 125 going wrong and needed a top end rebuild or seized pistons.

Is it due to the fact that oil is needed in the petrol or the fact that they can be ragged harder?
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Current : MSX 125 Past : CBR 900RR Monkeybike : c50 LAC : ZXR750 H2 : FZR600 : ZX7R P3 : YW100 : TRX850: Trophy 900 T309 : GSXR 600 L0: Monkeybike : XJ6S Whosthedaddy

[NSR Mick]

Looked after they are fine.

Most failures are due to lack of oil, too lean a mixture or bad / non existent servicing.

If you buy a standard one and leave it that way and look after it it should serve you well, it's when you start wanting more power things tend to go wrong.
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If you dont like the way that I ride.......Stop trying to keep up!!!

[Whosthedaddy]

RS125 + NOS = Big bang
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Current : MSX 125 Past : CBR 900RR Monkeybike : c50 LAC : ZXR750 H2 : FZR600 : ZX7R P3 : YW100 : TRX850: Trophy 900 T309 : GSXR 600 L0: Monkeybike : XJ6S Whosthedaddy

[Kickstart]

[plugger147]

I'm with keith a 2t engine rebuild is much easier, the hard parts setting it up right afterwards.
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Tristan the wrote: just whipped off my trousers to find a big bruise on my arse, caused by matt rear ending me...

[Luke_Retrofly]

good luck goose, im sure you will do it, I know you, it will take a while but i would put money on riding it in the future.

Luke
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Flounced - Long overdue
Fuck you bitch I'm in the top 10 list I can do the what the fuck I want!

[anders]

WOW you are a brave person, well done with all the hard effort you have put in etc, hope it goes we ll cant wait to see it in its final stages and then completed.
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Call me Mr. Blobby

[nick 15]

Same here

Will look ausm im sure

Lol

Nick
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cbr 600 kart on the way

[boredus]

Hello and greetings. No Offence to all the 4 stroke nuts here, you are far better off posting your pics at https://www.rgv250.co.uk . the site is purely dedicated to RGVS and there are some good mechanics on there, you can also get almost anything you are looking for off the lads on there!
Mine is in bits too, it died on the way home from buying it on ebay.... only difference being I know my way around a 2 stroke but its the 'diesels' that confuse me!
If you own a 2stroke you will get used to scenes like that! but once you get to ride them its worth the effort!

[Whosthedaddy]

[Gazdaman]

You'll be fine Goose. I completely stripped a TZR 250. Rope G the punisher into helping too you'll be zinging it around before you know it.

Failing that, someone distract MarJay for 50 minutes and we'll nab his engine.

Gaz

[Annabella]

[greenmeanie]

NO NO NOOOO! you will NEVER, EVER manage it, its not even worth trying!!!!!!!!!!

tell you what, just let me take it off your hands for you, ARRGHHH I WANT ONE!!!!! lol good luck!!
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Rh.

[Wave2k]

Go for it goose, the problem i find with taking loads of stuff apart at once is, which and where each bloody bolt goes
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Ducati 1299 Panigale
2009 Corvette C6 z51
RS125->CBR400->RXS100->GSXR750K2->Ducati749S->CBR600RR5->TL1000R->DRz400->RSVR1000->Honda VTR SP1->CBR400->GSXR1000K6->Honda H100->CBR600RR3->Ducati1299

[Josh|RD125LC]

If you do give up, which I hope you dont, you could always sell me the engine so I can throw it in my RG125 frame


Na, it'll be well worth it once you get it up and running again, they're mental machines!
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Honda MBX50 | Yamaha RD125LC | Suzuki RG125F Lucky Strike | Suzuki GSF600S
RD125LC Pictures

[msgander]

it will get finished I'm sure because the one working bike goose has (the sexy trx....) is soon to be mine with luck! - that should provide some incentive for this one to get fixed!

He will do it, he wont let it beat him lol
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Always believe that your guardian angel flies a bit faster than you...............