Horizons Unlimited - The HUBB

Horizons Unlimited - The HUBB (https://www.horizonsunlimited.com/hubb/)
-   Yamaha Tech (https://www.horizonsunlimited.com/hubb/yamaha-tech/)
-   -   How screwed am I? (https://www.horizonsunlimited.com/hubb/yamaha-tech/how-screwed-am-i-33654)

photographicsafaris 9 Mar 2008 17:57

How screwed am I?
 
1 Attachment(s)
I am planning on taking this bike through MOT and road-worthy by end of March 08, and just doing what needs to be done for now.
So pulled off rear wheel, and was happy to see the the drum brakes looked fantastic, all very clean etc. Axle true, no cracks, what are those triangular rubber bits for and how important are they? mine are reasonably worn but not too badly probably fine, but made a note to replace in the future. Then put wheel back on and swore at chain whilst doing so and wondered how on earth you replace the chain without breaking it :clap:.

Anyway noted that I need to replace all chain rollers as well, and then poking around saw the front sprocket



The "Repair" by previous owner

Attachment 1106

I am really, really F.F..F...F......F..rustrated because this was done where there was an Arc welder, hence bunches of electicity, and would have access to post office and supplies to get the thing replaced. I cant even express my feelings for M:censored:r F:censored:g B:censored:t S:censored:t for brains Dumb A:censored:s previous owner, because this was a freebie!

So just how F:censored:ed am I here?

It looks like you cannot pull the counter shaft straight out, and I will now need to discover how to access the counter shaft through blasted brain surgery.

Do you brilliant fellows have any secret tips to do this???

Looked at Cylmer manual...
:stormy:
Crap, I have to remove the whole engine.
:stormy:
and split the crank case.
:stormy:
and get the tool to pull the crankshaft
:stormy:
and I cant (according to the manual) use a hammer to "gently" slide it back in, which by then I would very much like to do:hammer:

Deffinitely going to need :helpsmilie:

Unless there is another way to get at it without splitting the crank case I will take it to a dealer to do for me after the MOT. install new sprockets, front and rear as well as new chain.

In the words of Blackadder:
F:censored:ety F:censored:ing F:censored:k F:censored:k

Oh and whilst I am at it, any one care to give me some input on the perfect (Africa overland) sprocket size? for suitable for motorways 60-80mph and also for desert sand/rocky hillclimbs, or do I just get two. The on at the moment has 15 (bending) teeth and has assisted me in exceeding the Frensh speedlimit by 15mph, but I would prefer something that give me more control at slower speeds

Cheers for any help, I have now sat down and about to crack open a Boddingtons.



did you hear it?

:oops2:
I appologise to those who may be sensitive to censored smilies

Laromonster 9 Mar 2008 18:14

on a scale from one to ten, one being slightly inconvenienced and ten requiring a new bike i'd say you are a solid five or so.
Two options:
1 Grind off the welds and weld on a new sprocket and sell the whole mess to an unsuspecting victim ( not recomended)

2 pull the engine split the cases and fit a new countershaft

Good luck
Lar

cyberzar 9 Mar 2008 18:30

I understand you, being in the same condition with a spare engine bought on ebay. Instead of doing the right work, previous owner decided for the dirty one.

There also an issue, probably now your sprocket, after the welding, is not totally straight. I have a third option, not an easy one. Remove the sprocket cutting it with a circular saw (the ones to be used on a drill) leaving enough material to cut it later with a dremel reconstructing its original shape.
It's a "clock shop work", I know.... having nothing to loose, i will try to do it in the next months too

Dodger 9 Mar 2008 19:00

If I remember correctly in your previous posts ,you said you were going to need to do some engine work .Well now you have another job on your hands thanks to DPO butchery .
IF the rest of the bike is OK then it might be worth spending the money and having a proper repair done at a dealer , a friend of mine had to have his XR650L split to replace a worn out [ after 11,000 km - please note Mr Honda - quality ?] countershaft .
He pulled the engine and left the rest to a dealer - cost about $250CDN .

Don't be tempted to grind off the sprocket and weld on another one , you'll more than likely destroy the seal .
You should be able to pin down the dealer to a fixed price for the job , then you can decide if it's worth doing the repair in addition to the other work you need to do .
If you don't have much mechanical ability it might be better to just sell the bike , your conscience can decide; where , to whom and for how much .

photographicsafaris 9 Mar 2008 21:20

Conscience and morals wont loose me any sleep at all.
:cool4:
I am gaining an understanding of what the bikes that are being broken for parts on Ebay are like, ie avoid like the plague!

I was very correctly advised to do the bike up as best and cheaply as possible and sell it on, then buy a 1996, Xt600 4tp and start again.
I would also advise this course of action.
But I am not going to do that I am still going to persue the route that I am on at the moment to have a 21 year old overland bike.
:scooter:
You are correct I have had a few issues, and was looking to see if I can replace the whole lower part of the engine.
Before dropping and splitting I will try to see if I can grind off the welding and see if there is enough left to bolt on the sprocket propperly.

Anyone dropped the engine and done the crankshaft by themselves without a full workshop?

Any tips or advice?

Thanks G

ceevu 9 Mar 2008 22:43

Hi
xt600 i presume?
I guess that there is a reason why that sprocket is welded so it probaly is waste of time trying to loose it nicely.
Splitting the cases,yes it can be done without any special tools, only magneto needed some attention bc its very tight and when it comes loose it POPS OF literally(straight to the concrete floor...)not sure if you need to remove it in this case anyway.
Assembly is much easier with some heat/cold. crankshaft to freezer and cases to owen or something(i used heat blower,when fingers got too hot it was ready to assemble) This way crank just slides in.

photographicsafaris 10 Mar 2008 01:41

Boddingtons: Ahhhh thats the cream alright
 
It is an XT600 indeed: 87 tenere 1vj.

Following a few beers I have come to accept that I will have to pull it appart. I have prepared my Attic for mechanical work. Will get it through MOT on 20th then strip down and carry engine into attic
As I am allocating tasks to do in certain time frames, I will also remove everything from Rear subframe to prepare for sanding down patches, for derust treatment and then repainting.

I will then dissasemble crankcase, and replace crankshaft with new shaft and gears. Rather than trying to heat the gears and cool the shaft to remove, just need to find a suitable replacement, and I know you guys are going to tell em to buy both sets so that they mesh. :stormy:

Once I have seen the inside of the engine I may well be happier, I am hoping that the Numptee who cocked it up by welding the sprocket to the shaft did so because he couldnt be bothered to take apart the crankcase, hence there being a chance that this is not b:censored:ed by his interference.

I have now noticed that the electrical harness to the lights, starter and guages have all been cut then re attached very heathrobinson style, so I can presume that this bike has had a different Tachometer and Odometer, so I have no idea how many miles it has done, probably alot more than I thought and was told!

Prudent use of a drill may be in order to wind it forward to Zero again! Or perhaps I shall do this after return from HU meeting in June after full engine overhaul: rebore/sleeve, bearings, cam & rings (when i will also be doing a decent job on the frame)

Thanks for input.

G

mollydog 10 Mar 2008 04:50

Wouldn't you rather spend your free prep time researching the countries you are headed to

Dodger 10 Mar 2008 06:33

I can't understand why you want to MOT the bike and THEN start working on it .
You don't even know the state of the innards of the engine , it might not be worth rebuilding .
You will for sure have to replace the countershaft , the welding will have destroyed the heat treatment of the shaft and more than likely buggered the splines .
Even if the engine can be fixed cheaply ,you will still waste several weeks of MOT coverage whilst you work on the bike .
Bodged wiring and inaccurate speedo readings are irrelevent really , wiring is easily fixed and your speedo will probably pack in on the journey, so don't fret that.

If the engine is a mess , let eBay be your chum -sell the bike piecemeal.

Patrick has made some damn good points , the main one one being that you will rely entirely on this bike . If you can't rebuild it to as good as, or better than, new , then it's better to not even start IMHO.

photographicsafaris 10 Mar 2008 08:22

Would you rather ride or screw...?
 
Thats an easy answer

Mollydog & Dodger, thank you. As mentioned above you are not the first to tell me this. And for future readers, I agree with their coments

The journey is not about the destination but what you do getting there.
I personaly would not take the most modern bike on a journey like this: North Horr to Garissa, follow Tana delta down to coast, then in to Mombasa try to follow that on Google earth.
One hard bump and you loose electronic circuitry...
After the journey your bike will have devalued enormously whereas an old bike will not have devalued,
All those plastics and the price to replace them at the end
Then there are the associated costs,leaving 1.5X the value of the bike in the UK doesnt meet well with my finances / travel plans

Why am I plundering ahead anyway?
I have a 59 series two Landrover that works as a support vehicle for equipment and staff when I am on Safari in an 84 Range rover.
I know that the old XT600 is the right mix for me, (and incidently I am older than 22) it has reliability, carrying capacity, cheap on insurance carnets etc, easy to maintain and if monitored regularly will not cause hassels.

Plus if I do this work now I will not be concerned if I have to do something similar in the field. Lets call it practice, and practice makes perfect, just like riding or...

MOT is easy peasey, New Clutch Cable, Carb rubbers, clean throttle cables through, grease nipples and replace the oil cooler O rings. Everything [Other than electric start] works fine, Oh and need mirrors.
Why do it now? To ensure that it is running for tax renewal

As to researching route, Ah hell everyones done it before me , I'll just follow tracks4africa and make the odd adjustment here and there.

Two trips
Little one 2010 two months: Post bikes to Kenya, ride wiggling around East Africa, all the unknown bits, Good fun in masaai tribal-lands with motorbikes and lions Play in the Chalbi, climb Mt Kili then down via East coast of Malawi to tigershark diving in mozambique, onto SA and post bikes to London.

Big one London to...:
Either down West coast across various deserts and down into Sudan/Uganda onto East African coast. then over Lake Tanzania and wiggle south through mud and stuff, turn left to Vic falls then over through to Bots Namibia
I do want to Avoid Egypt and Nigeria, but other than that keep it simple, and take a few breaks along the way.

Thanks for the cautionary advice, it was good and correct to say.
However I am ignoring it and would like to have input on the task ahead.

Thanks G

Dodger 10 Mar 2008 08:43

Ah so Grasshopper !
 
NOW I understand !
You own an old Landie , therefore the power of logic will not work upon you .
You have transcended the real world logic and supplanted it with a blind stubborness known only to those who tinker with idiosyncratic old classics .

You will mend that Yam at all costs !
I know where you are coming from , good luck my friend .

Dodger .
[ a fellow sufferer ]
'58 Series1 , 65 Series 11A , Too many 30 + yr old bikes as well .

Walkabout 10 Mar 2008 10:04

Plan B is still available to you
 
Quote:

Originally Posted by photographicsafaris (Post 178835)

I was very correctly advised to do the bike up as best and cheaply as possible and sell it on, then buy a 1996, Xt600 4tp and start again.
I would also advise this course of action.
:scooter:

Thanks G

You can learn a lot about the engine from doing the work on the 1VJ and then get a newer XT :rolleyes2:

Your MOT station/garage will be one more contact for advice as you do this work, but you could also SORN the bike (instead) until it is back on the road.

aukeboss 10 Mar 2008 13:50

Bad, but extremely so.
 
Depending on whether the bike is worth it, it is not that difficult to install a new shaft.
When you split the cases, the RH crankshaft bearing comes loose from the RH crankcase. all shafts except for the crankshaft can be taken out of the LH case without special tools. Just leave crankshaft, magnetoes as they are.
So, strip topend, split cases, and the countershaft comes out, if you have not forgotten to first grind away the weld that now fixes the sprocket to the shaft.
Of course you will need new cilinder gaskets, some O-rings and obviously a new shaft etc.

Removing the endless chain from the bike: remove wheel, undo the connection of shock to monocross lever system. Remove large swingarm pivot bolt. Swivel rearfork backwards ... take out chain.

Auke

zap2504 10 Mar 2008 14:22

I'm thinking that since you are doggedly committed to this specific bike, you should look for a good/used/running engine and swap it in for the old one. This way you can tinker/repair the old one to your heart's content while you have the capability to run the bike. :scooter:
If/when you get the original engine back up to speed, you can sell off the spare (or re-build it as a new spare).

skip 10 Mar 2008 15:50

Hi
This is not the first time i've seen the front sprocket welded on, if you have the patiance it can be repaired in place, first grind the weld off and remove the old sprocket, then take a fine needle file and file the remaining weld from between the spline, you can use a hack saw blade to clean the slot for the locking washer.
The shaft is made of hardened steel the weld is only mild and if care is taken can be cleaned up. It took me a day to sort out a sprocket that had been welded on one of my 1VJ engines.
Just take your time. Hope this is of some help Skip.

henryuk 10 Mar 2008 16:51

Quote:

Originally Posted by mollydog (Post 178880)
As I tell anyone who will listen: Always buy the very best and newest bike you can afford. Have the bike gone over by a pro.

I am afraid I disagree! I would say buy an older bike, and work on it yourself before you go, for several reasons:
-To better understand your vehicle and its own idiosyncracies
-More money for travelling
-Less to go wrong in a terminal manner.
-Easier to work on ("a carb, a carb my kingdom for a carb" the broken-down injection owner can be heard to cry)
-A 'Pro' might not know anything you don't, and he won't deal with other issues in the same way, i.e. a slightly damaged thread on a bolt will get forced back on rather than a new SS bolt being put in. I used a plumber out of the yellow pages, once. They were shit (i.e. worse than me!)

If I had gone with the newest and best bike I could afford I would have ridden an 1150 GSA from Sheffield to dover, then run out of money! As it was I took 2 grands worth of old Italian stallion to Kazakstan and back. I reckon I could have spent less and got more, a decent overland bike can be had for 1500 quid and some manhours doing the prep yourself

If I was in your shoes I would order a new gasket set, get that engine out and give it a once-over, the bike could even in theory be better than new! The quick and dirty option would be to just cut that off with a grinder and weld the new one on, check that alignment!!

Please don't bin it just because of the dodgy sprocket and output shaft, like my mum used to say - 'There are starving children in Africa who would fix that bike'. At least she said something like that, was too busy thinking about the forbidden fruit of a motorcycle!

Health warning - You might not want to take any advice from someone that is thinking about doing their next trip on a '68 unit single.......

bruken 10 Mar 2008 17:01

hear hear.

as for the 1150 GSA, I had one, beautiful bike, Carnet costs, Henry, you forgot about that....and insurance....The Tenere if she should die on me, too bad for me, good for local scrapyard, cheap as chips, trip continues. If the 1150 were to die, all I'd think about was how to get it back home...bye bye trip.

cheap + reliable (or easy to fix) = good

henryuk 10 Mar 2008 17:07

good point, what is the cost of taking a 10 grand bike across e.g. Iran, about £90K??
The insurance against that loss would cost more than my bike!

uk_vette 10 Mar 2008 19:29

Quote:

Originally Posted by Laromonster (Post 178817)
on a scale from one to ten, one being slightly inconvenienced and ten requiring a new bike i'd say you are a solid five or so.
Two options:
1 Grind off the welds and weld on a new sprocket and sell the whole mess to an unsuspecting victim ( not recomended)

2 pull the engine split the cases and fit a new countershaft

Good luck
Lar

,
,
,
get a small 100mm angle grinder wit a cutting disc, they are just 2mm thick, although they are really just for cutting, you can be very gentle and use it to carefully cut / grind away at the weld.

No rush, you have plenty of time.

ii am sure it can be done.

i would rat it at a 4 on your scale of 1 to 10

G.

xtfrog 10 Mar 2008 20:06

Quote:

what is the cost of taking a 10 grand bike across e.g. Iran, about £90K??
Hmm, you'd be wanting the "fake carnet" option then, Sir?

Its probably naughty to bring this up on an online forum, but it worked for me in Africa. (n.b. not trying to sell anything here, in fact I can't for the life of me remember how I stumbled across this particular option. Must have a riffle through the old journals.

yhprum 11 Mar 2008 15:42

I'm for fixing it! Plus you'll be able to look at 5th gear and have access to the oil pump. That should give you peace of mind on the trip. and if it all goes south in Africa for whatever reason you can walk away from it, if need be. You'll know that engine inside and out, that for sure!
Steve

photographicsafaris 11 Mar 2008 20:29

I am intending to go south in africa... but just got a copy of blood river, I have a single minded passion to go east , not west and mines on a desert!

Cheers G

Will update as it progresses to next stage

wrussell 11 Mar 2008 22:14

chain removal
 
hello to get your chain off you can probably buy a chain link remover from a motorcycle shop/ebay and put in a split link when you replace it so it is easy to do in future.I have recently changed all my gears including the sprocket shaft because it kept jumping out of third and the engine is pretty simple once it is taken apart its just a matter of checking each part is not too worn and replace if needed and renewing gaskets/ o rings . while i am going on a bit i would like to say that this site has given me so much inspiration/advice it is the bees knees and thanks to all who contribute :thumbup1:

*Touring Ted* 12 Mar 2008 16:21

I didnt read all the replies but from the picture there is absolutely no other safe option than to replace the whole shaft or engine (maybe cheaper)

If overlanding on this, you would be a complete idiot to do anything else.. (no offence buddy)

I second hand engine should go for a couple of hundred pounds on ebay.

Ted

photographicsafaris 14 Mar 2008 20:03

2nd hand ones on ebay..
 
The Second hand engines on ebay are there for a reason: Its a devil you know versus the devil you dont! This weekend sees the carb put together and back on, then looking furverently at the offending article.

Cheers G

*Touring Ted* 14 Mar 2008 21:05

Quote:

Originally Posted by photographicsafaris (Post 179767)
The Second hand engines on ebay are there for a reason: Its a devil you know versus the devil you dont! This weekend sees the carb put together and back on, then looking furverently at the offending article.

Cheers G

Well not really. I often buy and sell engines on Ebay. All you need is some common sense.

Most engines on Ebay are sold by breakers who have crashed or recovered bikes. The engines are usually the best part of the bike.

Even if you are unlucky enough to buy a lemon, the drive shaft will amost certainly be fine and you could swap it into your current engine. The whole engine will cost you less than a new shaft from Yamaha.

mollydog 14 Mar 2008 21:29

You talking about a "unit single" BSA? I raced and rode a few in my miss spent youth! :thumbup1:


All times are GMT +1. The time now is 23:20.


vB.Sponsors