Re: Honda CBR 250R

So, it indeed was the suspension, and not the swingarm.

From what I can put my hands around, it's got to be fuel related, as improper fueling can cause the engine to bog down and then pick up. When the engine isn't firing right, it creates all sorts of vibrations, smoother combustion almost negates the strange vibration one feels. I'd suggest try fueling from a factory outlet or basically a reliable fuel station, try to find if the issue persists.

I would also suggest you the earth wire mod. What is earth wire mod?

Here you go



Go through this thread, you'll have all your answers about earth mod. It's basically adding extra ground from battery to chassis.

Cheers!
VJ

Re: Honda CBR 250R

It could be the fuel. My fuelings are all done at random petrol bunks across Bangalore city.

The thread on Earth wire mod was a whole lot of interesting issues and information which I didnt even know existed. I have never had problem with battery, like switching on, light problems etc, so I am doubtful if this issue is related to earthing. Nevertheless I am eager to try this method out.

Regards

Re: Honda CBR 250R

Hi Guys Past 2 Weeks I'm Facing A Mysterious Issue With My Bike. After I Park My Bike People Standing Nearby My Bike Or Rather Passing By Call Me And Tell Me "Petrol Ka Baas Aa Raha Hai" Well I Took It Lightly Ignored Them.

I Myself Got That Fuel Smell Standing Near By The Bike.

So My Head Started Spinning And I Took It To My Haritha Honda SVC In Madurai My Guy Mr.Guna Lucky Smelt The Same So He Started Dismantling Side Faring Tank And To His And My Surprise There Was No Leak. He Check The Injector As Well No Leak. I Suspected Fuel Cap But My SvC Friend Clearly Denied It.

Now It Has Been A Month The Smell Still Continues. Infact At Night My Watchman Knocks My Door And Says Sir I Think There Is A Fuel Leakage From Your Bike.

I Tried Checking Every Thing From Tank To Fuel Injector No Sign Of Fuel Anywhere.

I Also Tried A DIY Rubber Seal On My Tank Cap By Cutting A Tube In Exact Ring Shape But Still Its A Mystery.

Well Interestingly My Bike Gave Me 40kmpl Now That Was Creepy And I Will Get Paranoid If I Cannot Find A Solution.

All Senior Mates And Junior Friends Help Me Sort The Issue.

Re: Honda CBR 250R

Out of curiosity, you seem to be from namma madurai and so Tamil. Who spoke to you in hindi abt petrol leak?

Ohk so is the smell arising only after u ride & park the bike or even when u check it out in the morning? Does it stink?

Re: Honda CBR 250R

Maybe someone is pouring petrol into your bike [emoji5] , I could never achieve 40kmpl no matter what I try. Highest would be around 37. 30 always in city.

Re: Honda CBR 250R

Sman999 Macha I Was Thinking The Same While Typing Some One Is Gonna Ask. Nevermind I Stay At Vistara Apt Here Majority Are Hindi Speaking People Apart From All This Madurai Is My Parent's Place. Amcha Karma Bhoomi Mumbai Hoo.

Back To My Issue.

The Smell Is After I Park My Bike And 24x7 Its Smells Petrol. I Tried Parking On A News Paper To Find If There Is Some Drops Dripping But No Nothing.

Re: Honda CBR 250R

Kannanmr16 Yes I Have Got Max 35kmpl From My Bike But I Guess I Got That Mileage As I Had Taken A Ride To Devakotai From Madurai Which Is Around 280km Up And Down I Had To Follow My Friend Riding Splendor As I Didn't Knew The Route.

But Guys Give Me Some Thoughts.

There Must Be Something.

Re: Honda CBR 250R

Since you asked for thoughts, here is mine. It should not be the case but, have u checked the air filter box. It just came to my thoughts and no specific logic behind it .

Also try changing a different petrol outlet other than your current one.

Ram

Sent from my C1904 using xBhp Connect mobile app

Re: Honda CBR 250R

So, fuel smells out of a parked bike, that doesn't report any observable leak (considering there really isn't any leak) points to the EVAP canister of the bike. The bike has a EVAP canister drain (one of the three tubes below the bike or side stand). When fuel vapors or droplets come out of this drain, it's vapor that usually causes this hard petrol smell everyone talks about. Also vapor comes out of fuel tank breather hose, so, lots of vents for vapor.

What I've said above is EXCLUDING fuel cap, fuel pump sealso ring, fuel lines, not taken into consideration for any defects. The above is the way the bike's designed to breathe/vent fuel vapor.

Cheers!
VJ

Re: Honda CBR 250R

B7ackthorn Checked The Pipes In Fact I Layed On The Groud And Tried Smelling Each Pipe End No Smell From There. And While Clicking This Picture To I Could Smell Petrol But From Where Is Still A Mystery. Anyway Took The Opportunity To Clean My Bike Myself That's The Reason Everything In Picture Is Looking Wet.

Re: Honda CBR 250R

This shouldn't be happening and could be dangerous ending up in a fire.
Did you have them check the petrol tank/fuel pump mounting ?
Petrol evaporates very quickly, so if the leak is minor it might be difficult to spot it. Also as someone suggested, take a look at the air filter box to see if there is any blow by (oily residue)
I would suggest you start off by changing all the hoses related to fuel, and the fuel pump mounting gasket and fuel filter (if any). If possible also try to swap the fuel tank cap with one from another cbr to check.

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btw, remove the plug at the end of the pipe (the one on the right in the pic) and drain out the contents if any (oil residue). That's the crank case breather pipe.

Re: Honda CBR 250R

Guys this is the chain vibration and noise that I was saying about. Please check and give me your input guys. The SVC idiots have no idea about it.

Re: Honda CBR 250R

I would suggest to wash/wipe out every thing dry after the engine cools down. Then start the engine(let it run for 2mins or take a short spin) then feel the places you doubt for a leak with a dry hand. Especially where there are o-rings and drain pipes. Even the chain tensioner o-ring. Be cautious while you check the hot engine parts.

Also try switching to speed petrol from BP. Cleaning the FI jet also helps if fuel appears to be the problem.

Re: Honda CBR 250R

This shouldn't be happening and could be dangerous ending up in a fire.

VERY TRUE.

Did you have them check the petrol tank/fuel pump mounting ?

YES AT HARITHA HONDA SERVICE CENTER. THAT PLACE IS RELIABLE.

Petrol evaporates very quickly, so if the leak is minor it might be difficult to spot it. Also as someone suggested, take a look at the air filter box to see if there is any blow by (oily residue)

WILL DO THAT TOMORROW AT SVC. BUT MY POINT IS FUEL ENDS UP AT INJECTOR. NEVER MIND WHAT IF THE PROBLEM IS THERE. I WILL CHECK.

I would suggest you start off by changing all the hoses related to fuel, and the fuel pump mounting gasket and fuel filter (if any). If possible also try to swap the fuel tank cap with one from another cbr to check.

IF THERE IS A FUEL LEAK PLACES UNDER THE TANK ARE DUSTY AND IF FUEL COMES IN CONTACT WITH DUST IT LEAVES OIL STAIN BEHIND. WHICH I DIDN'T FIND. DID CHECK ALL THE PIPES FROM TANK TO INJECTOR.

btw, remove the plug at the end of the pipe (the one on the right in the pic) and drain out the contents if any (oil residue). That's the crank case breather pipe.

THIS I HAVE NEVER DONE PLEASE ENLIGHTEN ME. ALL I HAVE TO DO IS REMOVE THE PLUG WHILE THE ENGINE IS OFF OR SHALL I TURN ON THE ENGINE AFTER I REMOVE THE PLUG. I WILL TRY THAT NOW AFTER LUNCH.

Re: Honda CBR 250R

I Have Been Using Speed From BP From Day One. My Bike Has Clocked 16500km