[Discussion] Exhaust Systems - YOSHIMURA

[Rider Saje]

Guys, The Next Meet up is on 02-07-2011 (Saturday)

 

We are going to Desaru And Kota Tinggi

(Cruise Along The New Desaru Highway E22 , Sight-Seeing At Desaru & Swimming At Kota Tinggi)

 

Timing : 0530 hrs

Meeting Point : Esso, 50 Woodlands Avenue 1 S(739066)

Purpose : Ride,SightSeeing & Swimming

Places : Desaru & Kota Tinggi

Budget : RM$100 (Inc petrol,bring extra just in case)

Attire : Long Pants and Covered Footwear (minimum for safety reasons)

 

**Help for those who never been to Esso Woodlands**

1) http://www.gothere.sg

2) "key in your current postal code" to 739066

(eg. 123456 to 739066)

 

Important Items :

1)**Passport & White Card

2) Padlock (for Disc Lock)

3) Rain Coat

4) Extra Clothing

5) Swimming Gear (Slippers,Shorts)

6) Personal Medical Kit

6) Tyre Repair Kit

 

Itineraries :

1) Meet Up At Esso (0530)

2) Leaving for Causeway (0600)

3) Stop at Bridge E22 (0650)

4) Reach Desaru (0715)

5) Leaving for Kota Tinggi (0900)

6) Reach Kota Tinggi (1000)

7) Leaving for JB (1200)

8) Lunch at JB (1230)

9) Heading Home (1400)

 

Please RSVP your attendance at the CB400 Blueflame thread. Thanks

 

PS: All are welcome.

[Rider Saje]

Riders, please help me be on a lookout for a black super four Version S on the road.

Plate FP 129 H.

 

Bike got stolen at Yishun Ave 7.

 

Thanks.

[denniz]

Well it's up to you then. 4-1 headers are always better at pick up but if you yearn for top speed, 4-2-1 is the way to go. But sound wise, 4-1 of course more garang

 

wait... this is weird... 4-1 headers has better pick ups while 4-2-1 headers has top speed? hmmm... i thot it's the other way round?

[kaka321]

i'm looking for header leh. guys u know where got sell cheap header? 4-1.

[luffy21]

anyone selling their yoshi endcan pls pm me...looking for one ....thx

[BigPumpkin]

Hey bros I am using a Yoshimura Titanium Blue with hodaka SS 4-1 headers and also k&n air filter. At lower rev and idle my bike will not be "smooth" and also feel sluggish. Only after a certain RPM then can feel the power. About a month ago when I first installed the end can the guy at Unique suggested that I change the jet in two of the four carb so that I will have more power. But after that still feel sluggish and idle is quite erratic, just like at first when I am using the SS headers with the Leo Vince SBK. Anyway to solve that? I am thinking the combination of the headers and k&n filters is making the fuel/air mixture at low rev too lean, but I am not very sure. Wondering if changing back to stock filters will help?

 

And also for the Yoshimura full system will tunning the carb be needed too?

[Rider Saje]

Always remember, there will be air leaks when you change to SS headers because they are aftermarket products afterall and is bolt on. Unless, you can weld them up together with your endcan, then you can maximise the power output. Tuning is normally based on feel bro. Unless you do a dyno run on your bike. The computer will compute the results for you.

[BigPumpkin]

Always remember, there will be air leaks when you change to SS headers because they are aftermarket products afterall and is bolt on. Unless, you can weld them up together with your endcan, then you can maximise the power output. Tuning is normally based on feel bro. Unless you do a dyno run on your bike. The computer will compute the results for you.

 

Actually I am not really looking for power, just smoothness. I tried my friend's stock version s and his acceleration is much more smooth than mine. For my spec 3 the bike will be like struggling for the first 3.5k rev before it picks up and smoothen out.

 

Maybe I am reading too much into it anyway. Maybe something to do with my drive chain and sprockets. But I just want to see if anyone has any opinion on this.

[Iceachilles]

Hey bros I am using a Yoshimura Titanium Blue with hodaka SS 4-1 headers and also k&n air filter. At lower rev and idle my bike will not be "smooth" and also feel sluggish. Only after a certain RPM then can feel the power. About a month ago when I first installed the end can the guy at Unique suggested that I change the jet in two of the four carb so that I will have more power. But after that still feel sluggish and idle is quite erratic, just like at first when I am using the SS headers with the Leo Vince SBK. Anyway to solve that? I am thinking the combination of the headers and k&n filters is making the fuel/air mixture at low rev too lean, but I am not very sure. Wondering if changing back to stock filters will help?

 

And also for the Yoshimura full system will tunning the carb be needed too?

 

Actually I am not really looking for power, just smoothness. I tried my friend's stock version s and his acceleration is much more smooth than mine. For my spec 3 the bike will be like struggling for the first 3.5k rev before it picks up and smoothen out.

 

Maybe I am reading too much into it anyway. Maybe something to do with my drive chain and sprockets. But I just want to see if anyone has any opinion on this.

 

Bro, what you're feeling is normal when you changed from orginal 4-2-1 header to 4-1 header. You loses low to mid range power in 4-1 but you feel the diff when the power kicks in. Our bikes are researched and built stock for smooth rides so that is the reason you felt your friend's VerS is very smooth. If you change back to stock 4-2-1 headers and endcan you will see the differences. Thus the reason you struggling in low rpm. DynoJets will even out all your power range if installed and tuned properly(some says will improve on fuel too) and gives you good performance. Every bike is different some by installing a endcan will feel some differences in output, idling and power but normally compensated by the loud exhaust sound that they nvr notice the changes. When you changed to full system, you will feel the huge differences in low range but do check if there are any leakages in the joints too. Even for Yoshi full sys, if you dropped the bike in an accident the joints might be off too

[BigPumpkin]

Bro, what you're feeling is normal when you changed from orginal 4-2-1 header to 4-1 header. You loses low to mid range power in 4-1 but you feel the diff when the power kicks in. Our bikes are researched and built stock for smooth rides so that is the reason you felt your friend's VerS is very smooth. If you change back to stock 4-2-1 headers and endcan you will see the differences. Thus the reason you struggling in low rpm. DynoJets will even out all your power range if installed and tuned properly(some says will improve on fuel too) and gives you good performance. Every bike is different some by installing a endcan will feel some differences in output, idling and power but normally compensated by the loud exhaust sound that they nvr notice the changes. When you changed to full system, you will feel the huge differences in low range but do check if there are any leakages in the joints too. Even for Yoshi full sys, if you dropped the bike in an accident the joints might be off too

 

I see..so the power lost at low rev is normal. So you suggest I change to DynoJets(is it a brand or something else anyway?) which will help bring back the low end power? Will it affect my FC much? Because I have very good FC right now. Also, if I change it back to the stock headers but with the yoshi end can will there be a difference? What about the k&n filter?

 

If only there's a way to chrome or there's a chrome version of the stock headers. I will buy that in a heartbeat. I saw in the super four bike gallery thread that bro blackness got a SS 4-2-1 headers. Wondering where I can get that? He didn't reply my pm:(

[Iceachilles]

I see..so the power lost at low rev is normal. So you suggest I change to DynoJets(is it a brand or something else anyway?) which will help bring back the low end power? Will it affect my FC much? Because I have very good FC right now. Also, if I change it back to the stock headers but with the yoshi end can will there be a difference? What about the k&n filter?

 

If only there's a way to chrome or there's a chrome version of the stock headers. I will buy that in a heartbeat. I saw in the super four bike gallery thread that bro blackness got a SS 4-2-1 headers. Wondering where I can get that? He didn't reply my pm:(

 

You can read more here for the Dynojet jet kits and have a more understanding

http://www.dynojet.com/jetkits/index.aspx

 

alot of heresay on the fc consumption part--> "Jet Kits increase power and smoothness throughout the entire rev range, while maintaining optimum fuel economy" by Dyno but some ppl will tell you fc like running water. If after dyno your bike sooo good in all the power range and you whack like mad, fc sure increase like mad.I believe if you remove 4-1 header and use the 4-2-1 header plus endcan you can feel the torque coming back or smoother at low to mid just like original exhaust but louder (smooth and more acceleration) but your high end will slightly suffer. Keep your K&n filter as it saves you $$$ in the long run. Blackness bought off from a forumer here but there are afew shops carrying the ss 4-2-1 headers. Best you wait for his replies on the performace or your enquires.

 

Or you could just get use to the sluggish feel and live with it (after awhile you will be used to it). Others will tell you its waste of $$$$ and Some will tell you " you not racing no need dyno" but if you happy you also can stock with dyno. Bottom line is how thick your wallet is. Cheers:)

[BigPumpkin]

You can read more here for the Dynojet jet kits and have a more understanding

http://www.dynojet.com/jetkits/index.aspx

 

alot of heresay on the fc consumption part--> "Jet Kits increase power and smoothness throughout the entire rev range, while maintaining optimum fuel economy" by Dyno but some ppl will tell you fc like running water. If after dyno your bike sooo good in all the power range and you whack like mad, fc sure increase like mad.I believe if you remove 4-1 header and use the 4-2-1 header plus endcan you can feel the torque coming back or smoother at low to mid just like original exhaust but louder (smooth and more acceleration) but your high end will slightly suffer. Keep your K&n filter as it saves you $$$ in the long run. Blackness bought off from a forumer here but there are afew shops carrying the ss 4-2-1 headers. Best you wait for his replies on the performace or your enquires.

 

Or you could just get use to the sluggish feel and live with it (after awhile you will be used to it). Others will tell you its waste of $$$$ and Some will tell you " you not racing no need dyno" but if you happy you also can stock with dyno. Bottom line is how thick your wallet is. Cheers:)

 

Thanks for your informative reply bro! Now I will decide if I want to proceed with a stage 2 jetting change. From wat I understand it's just bigger jets right? Which shop is good at doing jettings and tuning?

 

My wallet is not very thick but I am a bit obsessed with tuning the bike to perfect balance between performance, efficiency and looks haha.

[Iceachilles]

Thanks for your informative reply bro! Now I will decide if I want to proceed with a stage 2 jetting change. From wat I understand it's just bigger jets right? Which shop is good at doing jettings and tuning?

 

My wallet is not very thick but I am a bit obsessed with tuning the bike to perfect balance between performance, efficiency and looks haha.

 

Stage2? Normally ppl go for stage1 only if I am not wrong. I also not sure. Best you ask the pros about it first. The Dyno kit comes with 3 sets of diff sizes main jet. Search around SFB on a Jet Kit thread which I also cant find now. You already out of my league. hahaha. best of luck.

 

Did you get you was and sync carb after getting 4-1 headers and endcan? Find your trusted mech to synco and tune the air/fuel mixture which might improve but dun expect much like instant respond.

Edited July 22, 2011 by Iceachilles

[nudgedoink]

hey guys if remove the catalyser or db killer from a street legal pipe, will it still be street legal and pass inspection? thanks

[World Misanthropy]

hey guys if remove the catalyser or db killer from a street legal pipe, will it still be street legal and pass inspection? thanks

 

Of course it won't be legal anymore once it's removed. Don't waste your $700 just like that. I kena once and regret. $700 may not be much to some, but to me, it's worth every cents.

 

 

Just my $0.01cents bro...

[nudgedoink]

Of course it won't be legal anymore once it's removed. Don't waste your $700 just like that. I kena once and regret. $700 may not be much to some, but to me, it's worth every cents.

 

 

Just my $0.01cents bro...

 

thanks bro. haha not i want to remove. im looking for a second hand bike and some sellers have aftermarket pipes installed. sometimes they are street legal pipes but catalyser or db killers have been removed. now i know what to be aware of. thanks!

[gadgets_galore]

Hey guys. Anyone here in the forum selling the repack kit for yoshi cyclone?

[lyu]

Anyone riding Version S with yoshimura exhaust here? I would like to meet and hear the sound. Cause i thought of changing my Leo Vince to Yoshimura, Wondering which is louder. Lol.

[thatguyhaikal]

anyone wanna sell off their yoshi full system for revo call me 92325153. i got ready cash

[ducktale83]

Anyone riding Version S with yoshimura exhaust here? I would like to meet and hear the sound. Cause i thought of changing my Leo Vince to Yoshimura, Wondering which is louder. Lol.

 

Confirm yoshimura louder cos im using it last time on my ver s:) now using leovince..

[ShaReN]

anyone wants to trade tri-oval carbon fibre f/s for firespec f/s?

[ShaReN]

my cf f/f for your firespec f/s + top up.

[darkiller22003]

any one selling full system can contact me ... (for spec 1 ) 91506971

[Oranges]

AnyOne selling yoshi endcan, no dent no scathes with cert! Text me at 91899846

[Oranges]

AnyOne selling yoshi endcan, no dent no scathes with cert! Text me at 91899846