utsavchs

Hello Everyone,
I am facing a problem with my RTR for the past few weeks. The mileage has gone down too low and the speed is not exceeding 107 no matter what you do. Also the acceleration has gone down drastically. The acceleration is notable only after 8k RPM till then even a splendor can beat it out.
Before it gave 672 kms on a full tank till reserve point/ in 13.5Lit. of Petrol with a average of 49.7KMPL

Earlier Status:
Modifications : None
Tyre Pressure : 35/38
Engine Oil : TVS Mineral Oil
Petrol type used : 89~90octane/the normal petrol from hp pump
Total weight to carry: 83kgs
Average Speed on Highways: 120kmph+
Top Speeds Achieved : 125kmph, 127kmph, 129kmph & 133kmph
0-60 Acceleration : 5.52 sec
Average Speed in city traffic: 62~93kmph
Mileage returned : 49.7kmpl
Total distance traveled in a full tank till reserve point: 672kms
Servicing done: Every 2300kms

Current Status:
Modifications: None
Tyre Pressure : 36/38
Engine Oil : Veedol 10W40
Petrol Type Used : 90 Octane/the normal fuel with Iftex (1sachet per litre)
Total weight to carry : 73kgs
Average Speed on Highways : 90~104kmph
Average Speed in City traffic : 40~80kmph
Top speeds now attaining : 105kmph, 107kmph, 109kmph & 110kmph
0-60 Acceleration : 11.41 sec
Mileage returned : 24.19kmpl
total distance traveled in a full tank till reserve point: 326kms
Servicing done: 2500kms

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sunilg

Topic moved and approved.

p.s.: Please remove your phone number from your signature.

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utsavchs

Done.. thanks for approving

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Drifty

Start with the basics first,check the air filter for clogging,tune the carb for proper A/F mixture.Have you got the valve clearances adjusted before this issue?

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D.I.Y-Valve clearance setting RTR180
D.I.Y-RTR180 brake fluid replacing/brake bleeding
D.I.Y-RTR180 brake pad replacing/cleaning
Exploded view of Mikuni BS-29 carb

A motorcycle functions entirely in accordance with the laws of reason, and a study of the art of motorcycle maintenance is really a miniature study of the art of rationality itself.

utsavchs

Checked the Airfilter and the carb... they are ok. Valves are fine, had got the complete checkup done 3 days back.. no avail.. help please

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revvhard

I'm just taking a shot in the dark but it could be a problem with your clutch too, coz bike not responding on being revved and giving lower mileage are symptoms of having a wornout clutch.

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psr

You had not posted how many Kms on ODO...
Do you see engine oil dropping in level or light bluish smoke when you rev ?
From what you are saying it seems to be worn bore and piston ring condition.

Drifty

^^..Hmm..might be possible!
@Utsav:What's with that Iftex additive you are using?Did you find any significant difference after using it?

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D.I.Y-Valve clearance setting RTR180
D.I.Y-RTR180 brake fluid replacing/brake bleeding
D.I.Y-RTR180 brake pad replacing/cleaning
Exploded view of Mikuni BS-29 carb

A motorcycle functions entirely in accordance with the laws of reason, and a study of the art of motorcycle maintenance is really a miniature study of the art of rationality itself.

Samarth 619

These problems sound like a clutch problem with your bike. Get it checked and replaced if necessary... Do the following things in this order:

1. Check whether clutch lever has proper play or not. Atleast 5mm play is required. If it remains depressed always, it could be the most probable reason for the problems you're facing. My friend's Karizma had the same problem. He told me. I just touched the clutch lever and told him the problem instantly... He informed me later that the Service Centre guys screwed it up...

2. Drain the carburettor's dirt: Turn the fuel supply off. There is a screw in the lower part of your bike's carburettor. Unscrew it and let wastage flow thru an open pipe beside it... Screw it back.

3. Clean your chain & use a good chain wax/ spray on your chain... It worked for my bike atleast.

4. Put it on main stand. Check whether both wheels are rotating freely without any resistance. If the front wheel is stuck, it could be due to disk brake assembly. If the rear wheel is stuck, most probable reason could be the chain's lubrication...

Using some of these methods on my bike (P180), I managed to get good mileage figures. Around 56 kmpl or so.

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PS: Also, keep tyre pressures lower... The ones you mentioned are too high. 26 and 33 are more like it. This has nothing to do with mileage but more pressure does result in less grip.

utsavchs

19,876 kms in 7 months of riding. Engine oil did drop once and that too by a huge mark but only once due to a faulty cap. No petrol smokes if revving.

I had this clutch issue last month (hugely low performance even a splendor count beat the rtr), till the svc guys fixed it.... and yea.. it was fixed but upto a certain extent. It was catching acceleration only after 6k rpm. but now its 8k rpm for a notable acceleration.


Well, I dint experience any sort of difference in the performance nor in the mileage, except it dropped about the time since I changed the engine oil to Veedol 10w40. I just use it coz the svc guys told me that using Iftex was good. but without using iftex (dint use iftex today when I drained out the fuel from the tank and carb and filled the normal one again) there was a little difference in performance. The RPM meter was racing past 9k real fast and the acceleration was also a bit better, dint check the mileage though as yet.

Hey thanks for the tyre pressure figures. I never knew the exact figures of how much to keep. Well, now I understand why my bike tends to grip less when I am doing a lap.

Well I really forgot to mention something, The bike is getting heated up a bit too much near the block-piston/carb/underneath tank area due to some unknown reason and this has been happening for quite a long time say 3 months.. I rode another RTR180 for a thousand kms today, but that sort of thing dint happen in that, and boy i rode it real fast and it returned a surprising mileage of 39kmpl (kinda dint expect that much after revving it continuously so hard). Why is it getting heated up about after a ride of 25~30kms and ripping (90~100kmph)

I added the my Drag test figures. They are horrible now!!

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