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**Divya Sharan** · 12-25-2014, 09:07 PM

Re: Yamaha FZ-16/ FZ-S

Originally posted by nadz11.ns View Post

Regarding revving hard in neutral, I read a post by a fellow member in another thread that this can harm the engine in a really bad way.
@Divya Sharan.. The post was by you and can you please explain why is is so ? As we always see mechanics doing the same. Forgot which thread it was in, so couldn't find it.

It was in the ZMR v2 thread.

At idle engine is NOT under load, in gear it is. When you rev in gear, since the engine is already under load, it sustains the RPM for a longer period of time and hence the wear and tear of parts is less. But, without any load, the increase and decrease in RPM is very fast and wears out mechanical components very fast. The engine suddenly goes from heavy movement to none while it's decelerating rapidly in idling cases and that is sure to kill the crank bearings and other parts.

A motor in neutral has no load on it, so in theory the piston is trying to stretch the connecting rod and break itself loose. Rev it high enough and long enough in neutral and it'll do just that, or bend a valve perhaps.

**mgajen** · 12-26-2014, 03:06 AM

Re: Yamaha FZ-16/ FZ-S

Thanks man. Do you have any idea how much it cost??

**nadz11.ns** · 12-26-2014, 04:11 PM

Re: Yamaha FZ-16/ FZ-S

Anyone know the number of swingarm bearing ?
Is it mentioned in the service manual ?

**GauravB728** · 12-26-2014, 05:04 PM

Re: Yamaha FZ-16/ FZ-S

Originally posted by nadz11.ns View Post

Anyone know the number of swingarm bearing ?
Is it mentioned in the service manual ?

Yamaha product no:- 93317-318Y5
NRB no :- DB 18 24 16 P
Dimensions :- 18 X 24 X 16

Yesterday itself I did swing arm overhaul (DIY). I did not change the bearings though. Done thorough greasing at all possible locations.
One of the bearings is almost died the other one is ok. Plan to change them after another 6 months.

**nadz11.ns** · 12-26-2014, 05:09 PM

Re: Yamaha FZ-16/ FZ-S

Originally posted by GauravB728 View Post

Yamaha product no:- 93317-318Y5
NRB no :- DB 18 24 16 P
Dimensions :- 18 X 24 X 16

Yesterday itself I did swing arm overhaul (DIY). I did not change the bearings though. Done thorough greasing at all possible locations.
One of the bearings is almost died the other one is ok. Plan to change them after another 6 months.

Thanks for the info

You should be replaced the bearing then. A worn out bearing can cause performance loss to a great extent.

**GauravB728** · 12-26-2014, 05:15 PM

Re: Yamaha FZ-16/ FZ-S

Originally posted by nadz11.ns View Post

Thanks for the info

You should be replaced the bearing then. A worn out bearing can cause performance loss to a great extent.

Ya. I was not having the replacement bearings. Also I did not envisage that the bearing will wear so fast considering its only 14 months old bike (clocked 27k however

). The other bearing is perfectly fine can run another 10k easily.

I hope you are changing the bushings as well.

**nadz11.ns** · 12-26-2014, 05:25 PM

Re: Yamaha FZ-16/ FZ-S

Originally posted by GauravB728 View Post

Ya. I was not having the replacement bearings. Also I did not envisage that the bearing will wear so fast considering its only 14 months old bike (clocked 27k however

). The other bearing is perfectly fine can run another 10k easily.

I hope you are changing the bushings as well.

Ya.. I will change the bushings along with the bearing.
Actually I had planned to change the swing arm bearing months back, but due time constraints, couldn't do so.

Last month i changed the rear wheel bearing (and also the alloy and tyre) and had asked the mech to change the swing arm bearing as well, but they weren't in stock at that time.

**GauravB728** · 12-26-2014, 05:44 PM

Re: Yamaha FZ-16/ FZ-S

Originally posted by nadz11.ns View Post

Ya.. I will change the bushings along with the bearing.
Actually I had planned to change the swing arm bearing months back, but due time constraints, couldn't do so.

Last month i changed the rear wheel bearing (and also the alloy and tyre) and had asked the mech to change the swing arm bearing as well, but they weren't in stock at that time.

What is the labour cost for swing arm overhaul?

**nadz11.ns** · 12-26-2014, 05:51 PM

Re: Yamaha FZ-16/ FZ-S

Originally posted by GauravB728 View Post

What is the labour cost for swing arm overhaul?

Don't know. Didn't do that.
As the swing arm bearing was not available, i didn't allowed them to open it.

**Ishwor** · 12-27-2014, 05:54 PM

Re: Yamaha FZ-16/ FZ-S

Does canging carburator of new fz s on fz16
Gives any mileage gain.

I feel loss of power at lower rpm else evry thing is fine.I think it is an carburator issue.Mechanics do not bother on trying to solve this problem.Cleaning carburator didnot help.

New carburator cost around 8000 indian rupees in Nepal.So i am wondering if canging to the new carburator will be beneficial.

My friend says it ia ok to ise carburators of other bikes like apache,pulsar on fz.Is it true and is it safe?

Sent from my Samsung Galaxy s3

**Abishek94** · 12-27-2014, 06:11 PM

Re: Yamaha FZ-16/ FZ-S

Originally posted by Ishwor View Post

Does canging carburator of new fz s on fz16
Gives any mileage gain.

I feel loss of power at lower rpm else evry thing is fine.I think it is an carburator issue.Mechanics do not bother on trying to solve this problem.Cleaning carburator didnot help.

New carburator cost around 8000 indian rupees in Nepal.So i am wondering if canging to the new carburator will be beneficial.

My friend says it ia ok to ise carburators of other bikes like apache,pulsar on fz.Is it true and is it safe?

Sent from my Samsung Galaxy s3

Changing carb to another's bikes carb is not the solution. Each bikes carb size/type is different and is tuned to suit the requirements of that particular model/engine.

You can start by cleaning air filter, adjusting and lubricating drive chain, maintaining correct air pressure in tyres and then get the carb tuned by a mech. Btw, how many km has your bike done?

FYI, if you were referring to the carb of fzs v1 then the fz16/s v1 share the exact same carburettor. If you were referring to carb of fz 16/s v2 then it does not have a carb as it is fuel injected. Please don't put carb of any other bike in your bike as it will only increase your problems

**Ishwor** · 12-27-2014, 08:47 PM

Re: Yamaha FZ-16/ FZ-S

Originally posted by Abishek94 View Post

Changing carb to another's bikes carb is not the solution. Each bikes carb size/type is different and is tuned to suit the requirements of that particular model/engine.

You can start by cleaning air filter, adjusting and lubricating drive chain, maintaining correct air pressure in tyres and then get the carb tuned by a mech. Btw, how many km has your bike done?

FYI, if you were referring to the carb of fzs v1 then the fz16/s v1 share the exact same carburettor. If you were referring to carb of fz 16/s v2 then it does not have a carb as it is fuel injected. Please don't put carb of any other bike in your bike as it will only increase your problems

All right.got it.wont go for another bike's carb.
My bike is fz16 2009 model and has done 74+k kms .
I dont mean fzs fi i meant fz s v1.It has double throttle cable carburator while fz16 1st lot has single cable.

Mech says the double cable carb gives more mileage.

Sent from my Samsung Galaxy s3

**Abishek94** · 12-27-2014, 09:18 PM

Re: Yamaha FZ-16/ FZ-S

Originally posted by Ishwor View Post

All right.got it.wont go for another bike's carb.
My bike is fz16 2009 model and has done 74+k kms .
I dont mean fzs fi i meant fz s v1.It has double throttle cable carburator while fz16 1st lot has single cable.

Mech says the double cable carb gives more mileage.

Sent from my Samsung Galaxy s3

I don't know much about the double cable of fz.
Since you've done 74k odd km you might as well check condition of clutch plates, drive chain and replace them (if not already done). Are you running on the stock piston/cylinder? :O

**Ishwor** · 12-28-2014, 07:33 AM

Re: Yamaha FZ-16/ FZ-S

Originally posted by Abishek94 View Post

I don't know much about the double cable of fz.
Since you've done 74k odd km you might as well check condition of clutch plates, drive chain and replace them (if not already done). Are you running on the stock piston/cylinder? :O

Yes engine is stock but clutch plates and drive chain are new.
Do you think carburator is old enough to replacce?

Sent from my Samsung Galaxy s3

**Abishek94** · 12-28-2014, 01:02 PM

Re: Yamaha FZ-16/ FZ-S

Originally posted by Ishwor View Post

Yes engine is stock but clutch plates and drive chain are new.
Do you think carburator is old enough to replacce?

Sent from my Samsung Galaxy s3

If engine is stock and still has a few thousand km left then its better to decarbonise the engine head. Ask your mech about condition of piston/valves/cylinder etc.
Instead of replacing the whole carb, you can change a few parts which might need replacement like the carb diaphragm (the black rubber part), pilot jet and main jet etc. This will work out cheaper and may solve your problems as well. Also have a look at the condition of throttle cable and replace if needed.

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