yes, i am using rtr 180's block.

gixxer bro, i need to buy the foam, how much will it cost ??

Nano Please do a compression check...and make AFR rich if your compression figures are ok.I see that your ground electrode is still running hot. One side of plug is coated and the other is clean...The side facing the inlet valve is clean ,because of petrol washing it with every inlet stroke, and the side away from it will be coated with deposits.This is normal

Very cheap bro,must be within 50 to 100 bucks.Put the foam on and then ride the bike within 60 for a few kms and then take a pic of the plug .If the plug turns dark ,then no need to richen it further ,otherwise richen it a bit.

i just returned home from a 2 hour long HARD RIDE.

i tested this new bore to its limits today, as i left at 10 pm, the roads were pretty much empty, headed to the highway, pushed the throttle hard and even tried the same with twisties, and rough roads too.

so here's a short review of how the bike felt like, specially for all those who want an opinion on up-gradation of our fiero..

to start, let me admit the bike feels AWESOME.
believe it or not, when the engine is heated a bit, bike behaves better, it revvs better, it feels amazingly better and much controlled.

the bike finds easier to climb uphill too, but it needs to be kept on slightly higher rpm, i dunno much about the gear ratios, but the second gear seems very tall, even the third, but forth gear seems a bit weak.
i topped a mere 105kmph only, but reaching there is a piece of cake, bike sounds amazing when we REVV the engine, the sound is heavy, and feels like a man, not like a puny little stuff.

if we look at the tachometer, the needle pulls gently from 2k to 4k, after 4.5k it zoops to 6.5-7k in a second all of a sudden with a jerk kind of feeling where i get pulled as if the bike wants to escape out, trust me guys, some pulsar guys were rolling on the highways too, they were alongside at same speed, i was at 80kmph ~5.5-6k rpm, a twist of throttle made them almost disappear away in the RVMs.

more than power upgrade, i feel handling is become better, the engine breaking is more than the stock, pretty more, i must say, i don't know if it is a good thing, but its there.
but that handlebar is a boon for people like me, counter-steering is become much more stable and bike holds the road pretty well.

the bike isn't that crazy as it was with ultra high compression, its controllable now, finally it feels the bike is become just right.

its smoother than stock (if engine is heated)
its powerful
it handles better
the vibes are more at lower speeds, but as soon as you start ripping the bike, vibes completely disappear, that's a strange feeling but if your handy with 2 strokes, then maybe you'll understand my statement well.

i was trying to find out some downsides, and i came up with just 1.
the bike doesn't seem as reliable as stock, i mean it feels as there's no guarantee as how long the engine will keep running, when you ride, it feels smooth, but still you cannot convince yourself that it will run smoother if you ride at 100 continuously till next 2 hours..

that was one of the reasons i rode that long.

another thing is that i really miss the 5th, maybe 6th gear too, even when at 7k prm, at 4th gear hovering on 100 at speedo, it definitely feels the bike can do lot more than that.
it gives a feeling when we ride at 70 on stock engine, enough power at reserve.
you must have got the idea...

finally i am happy, truly happy, with twin hid's and good amount of power on a fiero, i feel as if i am riding a brand new machine, a very very worthy upgrade to a trusty and one of the most comfortable, yet under the radar bike...

to all those who have this upgrade in mind, wait no longer, go for it eyes closed.
make sure that the timing is right and the jet is at-least 117.5 and get extra packing under the block, you can beat out almost everything with this bike, and if this bike had 1 more gear, i bet it could beat ABSOLUTELY EVERYTHING....

thanks to gixxer
thanks to psr
thanks to vishal
and thanks to everybody else to make me finally get it right and own a steed which is giving me lot more than i expected.

enjoy & ride safe.

Good to know that you and your bike are settling down to enjoy each other's company.Please remember to be kind to the bike in the first 1000 Kms.I don't have to tell you how important running in is...Take care RIDE SAFE. Keep watching your Plug every 200 or so Kms to know your combustion.

RTR 180 runs Ucal Micuni BS 29 with Main jet 125 and pilot jet 20.Jet needle 4DHL42,and lock ring 2nd position from top.

================================================== ===

Nano ... bro it's good to hear from you and really glad you finally got it right and enjoying your ride. It's good news for us potential upgraders.

@Nanotech

Your TO DO list :-

1. Richen the A/F ratio.

2. Second foam is optional,if the above point is taken care of.

3. Go for a bigger main-jet, ZMA has a 125 main-jet ,but it costs a bomb(150 bucks) RTR180 125 main-jet costs 70 bucks, or CBZ Extreme also has a 125 main-jet and it should be cheaper than that of ZMA.The thing is Keihin carb's main-jets can be used on our carbs ,but not the other way round.

4. Since you felt the need of one more gear,put a 14 teeth GB sprocket.I am using the YAMAHA YBX gb sprocket,TVS CENTRA also has a 14 teeth GB sprocket.Find a GB sprocket of either YAMAHA or TVS ,they fit on our bikes.
The gearing will become taller and your engine will be less stressed ,so the vibes will disappear.It will give better mileage and more importantly the top-speed will go up.I mean hitting 100 will be like piece of cake. The down side of gearing it taller will be a drop in acceleration,stunting will need more revs .
But if you like cruising at higher speeds like me then taller gearing will be a boon.GB sprockets are cheap.

I am really glad that you are feeling the difference in handling character of the bike, brought by just lowering the handle which increases the weight on the front end.To illustrate the point ,you can see how low the handle is on my bike.You can see the seat,handle and foot peg triangle.

my handlebar is almost similar, but your is too low i believe, it seems absolutely flat.

as classic fiero is slightly lighter, i bet the handling would be much better.
why don't you install hid's mate ??

i have to ride in city mostly, so i might not go for a 14th sprocket, as i want acceleration.

1 more thing i wanted to ask, after higher revvs when i de-accelerate, i rear gunshot from the silencer (it happens rarely though) , yesterday night i heard it from the engine itself, it sounded as if its coming from the bend pipe's start.

when i reached home and switched off the engine, i heard that gunshot from the same place again just when i hit the kill-switch.

is there anything i need to worry about ??

besides as an update, the vibes have almost completely disappeared now, even at lower revvs, it feels like a 2 stroke when it idles, as well as when its revved hard.

Yeah buddy the bike's a demon on corners The road grip ,stability at high speeds is simply amazing,the bike feels so solid and planted that you feel very assured.The thing which i notice after riding other bikes back to back ,is the chassis feels very taut and rigid .

I have a few more mechanical upgrades on my mind ,like, a fifth cog,i have heard that being done on fiero and shogun so i will inquire about it.Once the mechanical things are done then i will think of the lighting.

Another update, since a hole in the baffle has been made ,there's been a increase in power all through the revv range.I mean right from the idle to the higher revs and for those who love the fiero exhaust beat,the music that is the volume of the music has gone up !!!! Nanotech, you might wanna consider this buddy ,because i believe that there will be a upgrade in the torque right off the throttle in your bike.

The backfire you hear is nothing to be worried about,did you richen the A/F ?
and when you put the foam or a bigger main-jet ,take a pic of the plug .

Sorry to deviate from the point, but how much engine life can one expect from the stock internals, provided that the bike has been serviced regularly? 75K kms.?

@Sarvjit :- You are underestimating the Fiero man. Mine has crossed 1 Lakh, except the engine head, nothing else has gone, the gear box is slick as ever and sounds better than latest genration pulsar GB.

Note:- Once the kicker spring had got cut, apart from it the usual clutch plate changes due to the extra power the engine makes. But believe me a stock Fiero if maintained properly, can probably go on for ever

Thanks for the prompt reply. Mine is not the Suzuki Fiero-it is Fiero F2. How long do you think it will last?
What do you mean by engine head only? I'm getting the head opened at the next service for the gasket leak. Will this give me an indication of the internals condition?
Why do people change piston rings&valves before&then go for cylinder replacement later?
Are these (piston rings&valves) coming under wear&tear items?

No need to worry yaar,F2/FX/APACHE/RTR all are derived from the fiero engine and they are improvements on the suzuki-fiero engine/gb .So they will last.There's a TVS distributor here whose SUZUKI FIERO has done 1,10,000 kms with just 1 clutch plate change and a rings change at 95k.

@Sarvajit

Your bike's spark plug shows that the engine health is fine and it's running a bit lean.So don't believe the mech if he says otherwise.Just get the oil leak sorted out and never ask him whether the engine is ok,he might con you.

Cool. That is good to hear. I'll get the carb tuning etc.done. Wish I could have you around when it goes for service.
Btw, I'm in Bangalore now-came on my R15&here till 7th.
I'm sending you a PM with my no.also&I need some advice also.