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**ROCKRZ** · 04-27-2010, 11:12 AM

JUST FOR AN UPDATE,

i met Mr. chinmay of CORE POWER. and since the jets for my bike were not available with him, i will be visiting him this wednesday. by the way he has correctly digosed the problem as the engine being overheated so i have reverted back to the configuration till he gets the right jets for my bike...

the stock jet size is 128 main and 32 pilot

by the way, can anyone tell me what exactly does the "128" signify????

**ROCKRZ** · 05-25-2010, 03:38 PM

Hey guys,

what does the 128 in the jet size signify????

**ROCKRZ** · 06-28-2010, 04:18 PM

latest update!!!! there is no other way of checking the engine reliably other than using cht guage or by a thermal gun

by the way as far as my hunk is concerned,

the stock carb is useless for k&N

i have changed the following stuff

1) carb changed to a bullet carb, 32 mm one
2) upjetted to 145 main and 30 pilot
3) got a new tps

pending mods:-

1 getting a oil cooler installed
2 removing the rev limiter
3 custom ignition controll system

the results are not just good... the bike easily wheelies now and i get lotsa wheel spin when i want.. also , i agtting a new set of tyres as soon as possible to get a better grip in the rains

the top speed is the same as earlier but now, the bike reaches that faster

**FranklySpeaking** · 06-28-2010, 05:37 PM

Can someone please tell me why we need a free flow K&N filter rather than the simple foam air filter we get in Pulsars? I mean, cant we simply adjust the air-fuel ratio from carburettor in a way to have more air:fuel? Where's the difference?

**ROCKRZ** · 06-28-2010, 06:29 PM

The air screw adjustment does not allow the air to be increased tremendously

. also, if u adjust the air screw, it disturbes the setting of the needle in almost all conditions.

**Shreeni0403** · 06-28-2010, 07:16 PM

Originally posted by ROCKRZ View Post

The air screw adjustment does not allow the air to be increased tremendously

. also, if u adjust the air screw, it disturbes the setting of the needle in almost all conditions.

Can you tell us which Bullet carb you used. Afaik the Bull's doesn't have throttle response and they are non CV type. So how did you resolve this issue on Hunk ?

Or is there any Bull carb which is CV type with throttle sensor ?

**ROCKRZ** · 06-28-2010, 07:55 PM

the carb on my bike is the one used on the new bullets and the pulser 200.. this fitment requires the mounting rubber to be cut slightly but the rubber is cheap so does not matter.

as for the tps sensor, the pulser sensor can be used with some minor modifications. actually the tps modifictions have not been completed as yet. and I am getting it done from chinmay dangre (core power)

**Riyas** · 04-04-2018, 05:24 PM

Re: [Help]: How to determine if an engine is overheating

Originally posted by jayprashanth View Post

Spit on your engine'e head when it is hot. If the spit vaporizes instantly, the engine is over the safe operating temperature or in other words overheating. Otherwise, you're good to go. If this is a little too nasty for you, try a couple of water droplets on your engine head, when hot.

Cheers,

Jay

Good & simple way to check...😂

**Riyas** · 04-04-2018, 06:01 PM

Re: [Help]: How to determine if an engine is overheating

Originally posted by mithun View Post

One of the best ways to find out whether the engine is overheating is to look into the tachometer. If the engine RPM is above the normal levels, it shows that the engine is overheating.

(This is not the only way !)

S, i have read it in many websites. (Set your initial RPM at 1000. After running long if the RPM is above 1500, it is a sign of over heating). But this is not dependable always. Because at times, the engine wil be heated very well but RPM is just 200 - 300 extra than usual.

**Riyas** · 04-04-2018, 06:16 PM

Re: [Help]: How to determine if an engine is overheating

I was very happy to see a engine temperature thread from XBhp while googling. Something i was waiting for. But very sad to see the condition of this thread, born & died in 2010. There could have been more suggestions & updates.
But definitely a great thanks to the spitting method that i would try today itself. I have checked with water droplets on engine (not on head), that resulted evaporation in 2 - 3 seconds. The reason for checking over heating in google is, I doubt my bike nearing over heating. It produces a small amount of burning smell at times..

**Riyas** · 04-05-2018, 10:33 AM

Re: [Help]: How to determine if an engine is overheating

Tried spitting test and water drop test on engine head. It doesn't feel like bouncing back, but evaporates in a second. Hope that it is not a problem...

**Riyas** · 04-10-2018, 06:32 PM

Re: [Help]: How to determine if an engine is overheating

Idle RPM increases to 1500 from 1100 after 45 minutes run. Is it a problem ?

**Riyas** · 04-11-2018, 11:27 AM

Re: [Help]: How to determine if an engine is overheating

I hope that the air fuel ratio was too lean. The engine was so harsh after a long high speed run. It was rough idling at 1500 RPM. The engine was heated more than in normal days. Oil level decreased in two days run. Half rotation of the fuel screw in anticlockwise direction made a good change. The engine is smooth while running and idling stays at 1100 RPM after a long high speed run at night. But at day time it roughens a bit because of the increased air temperature. All this mess started after the adjustments done by the service person in second service.

**Sai ashish** · 04-15-2018, 05:46 PM

Re: [Help]: How to determine if an engine is overheating

Hi Riyas, Thanks for some input in the thread.

**Riyas** · 05-03-2018, 07:50 PM

Re: [Help]: How to determine if an engine is overheating

As i have changed to motul 5100 semi synthetic oil, i tried setting the AFR towards slightly lean mixture. I turned the fuel screw a quarter in clockwise direction.
It doesn't tend to heat like before and it feels that the engine has become little smoother. The sound from the engine (from rocker arm or cam lobe) has lessened and produces a really cute "trrrrr" sound while in 90's. That sound and smoothness was i looking for without overheating the engine. When i move to fully synthetic in next oil change will try some more [emoji23] .

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[Help]: How to determine if an engine is overheating

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