Quote:
Originally Posted by bradhey The spot where you have the blue and golden colour on the exhaust is where the CAT converter is fixed. This thing gets bloody hot and transfers the heat to the silencer, discolouring it. It is nothing to worry about.
But yes, if your silencer turns deep blue or golden at the bend pipe or the exhaust (Dholki) then it needs to be replaced. Cheers. |
Wonderful to know that I am getting worried for no reason. In any case, I am getting the bend-pipe replaced during the 1st service (free of cost)
Quote:
Originally Posted by ArizonaJim More hydrocarbons equates with a richer fuel/ air mixture so the discoloration that is being seen indicates your engine is running slightly rich.
Rich is much better than lean for the engine, especially during its break in period.
A lean condition will cause burned valves and valve seats. The richer mixture on the other hand will not damage the engine parts (with the possible exception of fouling the spark plug) but the fuel economy will be somewhat lower. |
Thanks for the detailed inputs Jim. I am now much wiser in terms of exhausts, CAT's, Discoloration etc and read through that forum page including Kevin's comments
In short, my bike's engine is currently running in rich condition and wont damage any engine parts. As you right said about fuel economy, though I rode pretty sedately with no high revving throttle I still got a low FE (details in my update below)
So, when I give my bike for 1st service, should i ask the mechanics to tune the engine better so this discoloration doesnt happen? Thoughts please?
Alright, today is memorable in small way :-
a) I was successfully able to kick-start the bike in 2 attempts in cold condition
![Clapping](https://www.team-bhp.com/forum/images/smilies/Clapping.gif)
. And, just for fun sake, during my short ride this morning used only the kick-start and was able to start in first attempt. I reckon I am slowly getting the hang of it
b) Got my first tankful this morning before heading out. It was at 240kms (Minus 11kms) : 9 Litres of petrol =
25.55KMPL
However, I dont think this method of calculation is most appropriate as I dont recall how much I filled up at time of bike delivery. Next tankful will provide a much accurate figure.
Some queries :-
a) What is the accurate air pressure for a better ride, comfort and also fuel efficiency? I am 80% of time riding alone. Remaining time wifey will be riding along.
b) I recall reading in manual, high pressure water wash is not recommended. Before washing, there are a set of instructions like cover the sensor console, engine bay etc before water washing the bike. It sounded too cubersome.
Is that method to be followed for real or can be discounted as a manafacturers advice bordering on ideal conditions?
c) At 60kmph, I feel a very slight vibration in handle ( tried leaving the handle and riding, goes straight). Is this normal?
d) Front disk brakes are excellent. However, when you apply them, there is a very light whirring noise (cannot be heard in traffic conditions). Is that normal for a disk brake?
And, Blisterning Barnacles and Ten Thousand Typhoons, just when the throttle slack is completed, odo is at 60kmph.
That is when main throttle is not even opened. Awesome, Super Awesome. I am lovin' this bike !!!