Bike Smoking when coming off revs, Rider behind said smells very rich after new

[T250]

Might be silly, but have you checked the ring gap? I had a new set of pistons for a project several years ago and they were supplied with rings that were way out, turns out it was a bad batch from the manufacturer, I would find it hard to believe with Suzuki but just a thought.

[Xdiavel]

Great speedy work stripping and posting video👍Maybe get an engine shops opinion on cross hatching? In 50 odd yrs of motors i never re ringed one without honing.Know nothing on composite bores.

Thanks, took about 5 hrs taking my time and a lunch break lol it's only ever been ridden in dry weather as weekend play thing and low mls so everything come apart nicely. 😀

The Haynes manuel turned up today as there is a section that states do NOT hone the cylinders. The cross hatching in the cylinders look great IMO none of it has been worn out. I will replace the rings at 120° angles and drop the oil and run running in oil for another 600mls or so then buy some of the oil recommended on this thread. Cannot believe the cost of the rings though 😕

[Hooli]

You'd be better off looking in the downloads section of this site & getting the official Suzuki workshop manual than following the haynes book of lies.

[T250]

You'd be better off looking in the downloads section of this site & getting the official Suzuki workshop manual than following the haynes book of lies.

  Yup the only good thing for a Haynes is to put it under the side stand if you're at a rally in a muddy field

[Xdiavel]

You'd be better off looking in the downloads section of this site & getting the official Suzuki workshop manual than following the haynes book of lies.

I have looked at those and I do not believe anything is mentioned about honing etc hence why I think there may have been a few debates on here about it.
Haynes states

The bores are electro-plated with Suzuki's SCEM (Suzuki composite Electro-chemical material) a highly wear resistant nickel-phosphorus silicon-carbide coating which should last the life time of the engine. If any cylinder is badly scratched,scuffed or scored, the cylinder block must be renewed. The bores surface should not be honed.

There is also Zero glazing to the cylinders and crosshatching everywhere which you can see in the video link I put up, but it looks even better than that in real life.

[Xdiavel]

I did a quick bit of reading on this last night and believe it is commonly known as Nikasil,

This was actually no help at all as it seemed around 50/50 for and against. The coating is very Tough but also slightly porous when the likes of Stone honing tools are used, bits of the stone can be absorbed by the nickel coating and be released later reducing the piston ring life span.

The safest way seems to be, clean with a red scotch bright pad and warm soapy water/Contact cleaner/carb cleaner lightly to remove any light glazing and then give a thorough clean with WD-40 with a light coloured cloth to make sure no more dirt is seen.

With Honing Nikasil this should only be done with  Diamond honing and by an expert who has worked with the material before as it is super thin. If any damage is seen in the Nikasil it should be binned and replaced. If good crosshatching is still present then it seems a good clean is all that is needed.

[grog]

A learning curve for me, no way telling you your business. ive spent some time reading  on nikasil , bottom line is cleanliness not honing.I like to learn this stuff. Seems your cleaning is correct with after WD40 a a isopryl alcohol to finish. White spirits i guess. Lube rings up to refit, running in oil ?? At least youve got Diavel to ride. Amazing bikes, really miss mine.

[Xdiavel]

A learning curve for me, no way telling you your business. ive spent some time reading  on nikasil , bottom line is cleanliness not honing.I like to learn this stuff. Seems your cleaning is correct with after WD40 a a isopryl alcohol to finish. White spirits i guess. Lube rings up to refit, running in oil ?? At least youve got Diavel to ride. Amazing bikes, really miss mine.

Hi Grog,

Yes will be using running in oil for the first 600mls or so just to give it the best chance. And then change to oil recommended on this thread and ditch the Motul oil.

Sadly I sold the X-Diavel which is more the cruiser one after 6 yrs. Again a very unreliable bike for me. And went brand new on a Kawasaki ZH2 200 bhp :-) as it comes with 4yrs Warranty.

I bought the GSX1400 as have always liked them when seen out and about but this has been by far the worst bike I have ever owned lol. But still lovely and comfortable when ridden and just has something about it.

I have also enjoyed working on it and learnt a lot but would be very upset if this was my only mode of transport.

If this works it will be like a brand new bike hahaha

[grog]

Im sure itll be fixed and then youll learn to like it.I think weve all owned hate bikes, just too difficult.Ive had lots and maybe just two really bad,Honda Elsinore & Norton Commando,both just shouldve been landfill.

[Xdiavel]

Well !!!!

I finished the rebuild this weekend and it fired right up. I took it out for a 50 mile ride Yesterday to start the running in procedure and when I got back I had to make a slight adjustment to the throttle cable so thought I would just check inside Cylinder 3 & 4 and I knew what was coming as it it was doing it still on the ride.

But you guessed it they both had oil on the pistons and the same amount on each!!       
I assume 1 & 2 will be exactly the same but at that point being utterly exhausted with it I threw in the towel and went indoors to sulk for the rest of the evening lol

[Hooli]

Sulking sounds the best plan at that point!

[KiwiCol]

Bloody hell!  I think the bike has a message for you, it's trying to tell you it identifies as a 2 stroke, you've got a trans GSX!

[KiwiCol]

On a more optimistic note, you've only just started the running in process, get the 600 - 1000 miles done & do the oil change & see how it is then.  50 miles the rings won't have bedded in yet.   Fingers crossed.  

[grog]

Xdiavel, so much money/ work no result. Just cant understand,how the hell can oil be getting in? What to do, no clues from me.Breather is clear/ been checked? Pairs hose from air box, stick a marble in it.Yours and Erics are just mongrel pia bikes. Anything else youd like to trade it in on?

[Xdiavel]

Xdiavel, so much money/ work no result. Just cant understand,how the hell can oil be getting in? What to do, no clues from me.Breather is clear/ been checked? Pairs hose from air box, stick a marble in it.Yours and Erics are just mongrel pia bikes. Anything else youd like to trade it in on?

Hi Grog,

Yeah tell me about. I bought this bike with 7.5k miles for £5700 so wasn't cheap but was very clean, well for a GSX anyway. I have invested way too much time and money into this bike, Although have enjoyed parts of it. It owes me a lot, and was going to be a keeper for at least 10yrs so wanted it being it's best.

Things I have done to the bike, Most work carried out by myself.

Powder coated the wheels
New wheel bearings
New Tyres
Thistle brushed front forks to look like OEM, not polished
New fork seals
Refurbed front brake calliper's
New Brembo pads (Awesome)
Painted front Mud guard
New dial surrounds
New Dial backlights (White) with integrated gear indicator
2x brand new OEM Exhaust headers as the originals had some dents.
New Renthal Silver bars
Brand new OEM side panel cover
Polished myself, both side engine covers.
Painted myself Clutch cover.
Painted feet heal plates.
Pipeworx exhaust that comes on and off depending on mood lol
Heated grips
New sprockets and chain
New indicators
LED bulb change

( Have had many compliments off people on how it looks like it has just left the showroom especially when OEM pipes are fitted ) :-)

Engine work to find oil issue,
Carried out all valve stem seal replacement with engine still in situ (No difference)

Checked every sensor all ok, If not in spec brought back to spec.

Changed plugs several times

Changed Pairs O rings in head ( No difference ) Also changed rubber again on rebuild.

Checked air box and PCV hose - All clean and no sign of oil mist etc. Checked hose again after rebuild and can feel light air pulsing out of it, But this was when cold.

Checked all exhaust valves which were bone dry with no signs of oil leaking over them from the Stem seals.

Engine pulls hard and smooth like new.

Engine rebuild inc all new rings,Gaskets,seals etc  ( still the same on ALL 4 PISTONS )


I feel my only options now are,

Keep running it in with the mineral oil and hope it was the rings all along and will sort itself (doubtful)

Just keep it and live with it. Only does 2k mls a year due to another bike so oil burning/consumption will not be an issue.

Wait another year or so when something expensive and shiny comes out and trade it in with my other bike to get a better deal.

Carry on fault finding to a fix - Had enough at this point tbh as it's all still guess work.