Engine rebuilt

[gwel]

I ve just finished rebuilding the engine.On my xt 1998 with 150 000 km on it. New cylinder, cylinder head,piston rings, cam chain ,starter motor,rectifier, solenoid, new stainless steel bolt engine kit, solenoid, battery cables, battery and wiring harness.

Took me some time.to source all the parts and hesitated if i was worth it or should get the new t 700.

Well im glad i worked on it. With the leo vince X3 exbaust and motad downpipe it sounds great and it s a bullet proof bike ready for the next 150 000km.

No need fancy electronics this bike can take a beating.Lets see what the t700 reliability is. And if can be fixed easely in the middle of nowhere.
All in all it costed me 825 euros..with still cash to spare for the real adventure is a state a mind...

[riderboy1961]

Nice!
Any Pictures?

[xtrock]

Originally Posted by gwel

I ve just finished rebuilding the engine.On my xt 1998 with 150 000 km on it. New cylinder, cylinder head,piston rings, cam chain ,starter motor,rectifier, solenoid, new stainless steel bolt engine kit, solenoid, battery cables, battery and wiring harness.

Took me some time.to source all the parts and hesitated if i was worth it or should get the new t 700.

Well im glad i worked on it. With the leo vince X3 exbaust and motad downpipe it sounds great and it s a bullet proof bike ready for the next 150 000km.

No need fancy electronics this bike can take a beating.Lets see what the t700 reliability is. And if can be fixed easely in the middle of nowhere.
All in all it costed me 825 euros..with still cash to spare for the real adventure is a state a mind...

Great, its like free upgrade compared to what a new bike drops after you take it for a ride. T 700 is out there for many years to buy so dont worry

[gwel]

Yes...so here is a photo of the "beast".If T700 prove good will wait at least second edition. Let the first buyers do the troubleshooting..

[Cambelt]

Originally Posted by gwel

I ve just finished rebuilding the engine.On my xt 1998 with 150 000 km on it. New cylinder, cylinder head,piston rings, cam chain ,starter motor,rectifier, solenoid, new stainless steel bolt engine kit, solenoid, battery cables, battery and wiring harness.

Nice work. I was wondering if you sourced a seconhand wiring harness or built from scratch?

[turboguzzi]

like the road warrior look a lot! proper un'


wouldnt worry too much about the new 700 relaibility, same power unit as in the MT07 which is sold a few years already, a peach of an engine from a ride i took on one.


i remember that a german magazine took apart a unit after umpteen miles and it was like new inside


hope not to piss you off, but i avoid using stainless in engine cases... SS and aluminum + humidity = galvanic corrosion that can get nasty. if you must SS, then put some anti seize in all of them. i use only plated steel in cases

[gwel]

Hi,
Thanks for ur comment

I found a nice but used loom from a portuguese Xt, so virtually no rust. New loom were quoted 400 euros form Yamaha, this one was 50 euros.

As for SS steel an aluminium i remember vaguely from my youth learning about metal imcompatibilty..and corrosion. But the cylinder alyminium sleeve nut were so corroded they disolved as i was trying to remove. I ended up cutting off the original cylinder with a grinder...

The sleeve nuts i sourced were recommended by KEDO and i thought this would be a good investment in the long run...

Some part were from Germany other from France. I recommend one to visit " leboncoin.fr:. The french loved the Xt back in the 90 s...a lot were in Paris commuter and courrier bike...

So Im now off to France myself, need to break in the engine...then Spain Portugal and maybe Morocco...keep posted..

[Tejou]

Hello all so i am a 16 year old guy and i just bought my first xt600 converted into sm version...
the engine had a really loud sound of banging inside i thought it was the con rod so i took the top end apart... yesterday i saw that the con rod and the crankshaft are good and the piston.. and i saw that the noise is comi9ng form that counter weight on top of the crankshaft.Should i take apart the whole engine and replace it or should i leave it the way it is now? Thanks in advance!

[Ezra Hardy]

Tejou,

Not sure if you've checked, but could be the nut being loose on the balance shaft allowing the gear to move back and forward on the key, making a loud banging noise, as I learned not so long ago. Caused by lugging the bike at low revs and the big single cylinder acting like an impact driver undoing the nut I seem to think. Doesnt mean you have to replace the balance shaft or take the engine apart completely, but best to replace the key on the shaft though and torque it up good.

Hope this helps

[Tejou]

Yes that is exactly the thing going on here will get it done tomorrow
Thanks for the notice!
but we learn from our own mistakes hahaha i suppose it is time to put back the engine and ride away

[Ezra Hardy]

Glad my mistakes helped somewhat. Would be a good idea to have a look at the keyway on the shaft and key as they can get chewed up if run like this for a while. Don't ask how I know...

the key is pretty cheap to replace, so if the bike is high mileage , might be a good idea to replace it.

[Tejou]

Hahaha i guess i wont have to think to much to get it how you know that..
I took a look at it and it is in a pretty good condition but i dont lnow maybe it will be good to replace
Can you tell me where have you bought yours? Id like to find a trustable resource because i dont want to end up buying sth that will break in few miles..

[Ezra Hardy]

I got the genuine Yamaha part from A.J.Sutton.co.uk, £2.50 or something, think most genuine parts places will be similar. For that price, dont see why you would bother finding anything cheaper.

If it looks ok, with no marks or signs of fatigue, maybe it will be ok, I'm no expert. But Mine was not ok and they were pretty cheap.