Re: The story so far.. My Honda CBR 250R

Sir, yes, I knew many things couple of years ago; these days, I don't think I know anything & my mind is all blank. Its hard to believe for anyone, but, this is the truth. Please don't ask me why, even I don't know & I'm trying to seek the answer for it.

Sir & Shv18, please accept my apologies for the OT

Re: The story so far.. My Honda CBR 250R

The engine oil info on this thread is amazing. Thanks shiv, psr and argeee for the info! Personally, I use castrol power 1 in my cbr250r (15w 40) for the past 6 months, after warranty expired. I find no difference in either top speed or engine performance in the past 2000 kms. However, the engine sound has become slightly more rough, which I think is due to the oil being semi synthetic. I will update this thread on my bike's condition, just for reference.

Sent from my Lenovo A328 using Tapatalk

Re: The story so far.. My Honda CBR 250R

Wow. This thread is full of useful information. Glad that I found this thread at right time as I am hunting for a pre-owned CBR250. One question - Have you did any valve clearance adjustment after the rounds of engine cleansing?

My belief is, there are lot of fake castrol oils in market due to their popularity. Be sure to get it from right place. I for one get oils from Shell fuel stations for the peace of mind I get.

Re: The story so far.. My Honda CBR 250R

Great writeups by shv18 throughout the thread. A big thanks to other contributors too.
I am looking forward for tapered roller bearing mod, since i m about to change the conset soon.

Re: The story so far.. My Honda CBR 250R

Thank you Shiv for such an elaborated informative thread.

I have a little doubt on the CBR filter replacement by an FZ one. FZ filter has more pleats, thus better filtration. Again, it would not match the flow rate of CBR filter. Lower number of pleats would produce minimum resistance against flow. In a fan type pleat, flow passage is mostly carried out at the base part (where pleat touches core). Each pleat would develop a certain amount resistance (depends on the substance which the filter is made of). Greater number of pleats, better filtration, less outflow. CBR250R engineer must have calculated all these before developing this filter. It is obvious that CBR250R engine would need more oil than FZ and I doubt FZ filter would provide enough oil flow as per CBR250R requirement. You may not see any effect in a short term, but it may affect in a long run and reduce the longevity of engine.

Thank you!

Re: The story so far.. My Honda CBR 250R

I did the earth wire mod today, but frankly speaking I did not find any difference as of yet. Test rode her for only 2 kms after the mod. will do a thorough test on sunday as its raining here in pune:banghead: and then post the update. Thanks psr sir and the theironhorse99 for.confirming on my understanding of earth wire mod and shiv18 kudos to you for finding out such a mod.

Cheers,
Sanjay

Re: The story so far.. My Honda CBR 250R

Did Earth wire mods for a friends bike which had done about 30k km after going through your thread.The bike used to shutdown randomly for no reason.Its been 1 week since the mod and the owner tells me the bikes feels like new and hasn't faced any shutdown issue since then.

Re: The story so far.. My Honda CBR 250R

This means that the Earthing in your CBR was good ...still this mod prevents your experiencing problems in future ,connected with Earth / Negative return of Circuit.
It is Good to see that the Earth Wire mod is helpful to some of the owners...

Like Mr.Sanjaysangar had reported, I had also received one other owner expressing nil or very little change in their CBR acceleration after the mod..

I had explained in an earlier post, This Secondary Earth Wire mod is helpful only in bikes with Earth wire developing Loose Contact, and those with good earthing will not feel any difference....Any owner can test the Earth wire integrity ,simply by using a DMM in DC ,20 Volts range and measuring Voltage between the Battery Negative and the Earth Tags on the RR unit fixing bolt...any voltage read on the DMM is an indication of Developing Loose Contact.

Still this mod prevents the occurrence of an Earth fault in future .

Owners can make an independent decision whether to go for it or not.

Good Luck...

Re: The story so far.. My Honda CBR 250R

​Hi All,

I am happy to note that many riders have been benefitted by the "earth wire" mod on their respective CBRs which only confirms my suspicion that due to the original design of the OEM company, Honda: i.e. earthing done at a single point is not 100% fault free. Under certain conditions this problem slowly starts deteriorating performance of CBR 250Rs even without the owner realising it. Since, the "earth wire" mod, i am glad to mention that my CBR never shut down randomly when suddenly opening or shutting off throttle for rapid acceleration or deceleration which has been reported by a lot of Honda CBR 250R owners. She is performing strong and the low and mid range has become very punchy.

I am happy for all those riders who have not experienced anything new or better performance from their respective rides. However, know this: you now have an insurance policy by merely spending 100 bucks on this simply yet effective mod which ensures that should this ever start happening with your ride, the secondary earth wire will provide 100% back up connectivity with the rest of the electricals. i.e. it will be a seamless transition from a possible faulty stock wiring to this secondary earth wire thus, keeping your vehicle functional without you ever realising it and you will never have to go through the ordeal i had to bear.

QUICK UPDATE:

Regardless, wanted to post a quick update related to my CBR. My ride has covered so far 1,287 kms on Shell Rimula R4. Though there have been no problems with gear shifts but the earlier annoying engine vibes are slowly creeping back. There are very mild engine vibes starting from 3- 4,000 rpm which again starts at 6 - 7,000 rpm and then dies down. All the vibes are felt prominently at the handlebar. As a precautionary measure, i also got the bar end weights checked and the fiber panel bolts also inspected incase of a loose one but all are ok. Luckily my vehicle doesn't have any panel vibrations so i suspect the current Rimula R4 engine oil is slowly losing its properties. I shall continue running this oil for another 300 kms and monitor the engine vibrations and any noticeable changes with hardness or clunkyness from the gearbox.

For the readers to analyse, do have a look at the picture below. The Rimula R4 has taken a very dark amber colour which is a clear indication that it is still busy, slowly removing the deposits from the engine internals which is a very good thing. I have not observed any depletion in engine oil level, blue smoke nor sticky deposits on the exhaust end so mechanically my engine is still fully functional. I have not witnessed any shim noise from my vehicle which is very encouraging. Even when i compared my ride with a brand new 2015 CBR 250R which has been recently purchased by a friend of mine, besides slightly throaty exhaust note, my CBR's engine is more or less as silent as the new vehicle.



Pic 1: Engine oil colour @1,287 kms. Currently running Shell Rimula R4 engine oil.

I have already got hold of another two 1 ltr bottles of Shell Rimula R4 HDEO engine oil to carry on with the treatment as the results so far have been extremely encouraging. I would again like to point out that this still an ongoing experiment so if anybody wants to go ahead with this "HDEO engine oil treatment" you are doing so with your own free will.

The OEM steering bearings and coneset are now a complete goner but due to time constraints i am unable to carry out the installation of the Tapered Roller Bearings from All Balls Racing (refer to post: http://www.xbhp.com/talkies/general-...ml#post1175722) courtesy Mr. Vikram: Motozone Performance, Mumbai. So i had no choice but to get the steering nut tightened even further which has resulted in a very heavy steering feedback from the handlebars when riding. I guess i will have to carry on with this till i can manage to get hold of a free day and get the tapered roller bearings installed. More to come in the later posts..


Cheers,

Re: The story so far.. My Honda CBR 250R

The Secondary Earth Wire Mod did give benefit to a few CBR250R owners who had loose contact in their Earth connection through RR mounting bolts....
Looking at the Color of the R4 at 1.2K+ Kms , it looks dark Amber , but not blackish like the Ultra and first change of R4 did. Clearly the engine is getting cleaned and getting better. When Hard Gear shifts and Vibrations set in, That's the time for you to change the present engine oil....My guess is, it will do another 500 Kms before this happens...Keep up the updates and work carried on..
Good Luck.

RESPECT to your "The story so far.."

To the thread starter,

As u can see, i am a rusted member here. Was an active member 3 years ago, but then the office and exam priorities hardly gave me time to log on and discuss and share experiences. Even i too had some good exchange of information with [MENTION=32286]psr[/MENTION] sir during that time and i remember he has always been so helpful with his vast knowledge and experience

Since i own a pulsar NS, so i mainly follow the NS related thread along with a few travelogues. Somehow, your thread came to my notice, and boy its such a informative thread that you started. just couldn't stop reading all the pages in last two days with the few breaks i got!!

Firstly, like you, i too am apprehensive about buying a second hand vehicle. but then with all the reasoning it certainly seems a good enough option to look into and get a better value for money bike. Kind of opened my mind in considering and studying this market as well.

Secondly, my NS too being a DC bike, am thinking about the earth wire DIY mod. In the three years of ownership I have not faced any serious electrical issue. but in total only twice(sudden instance), while giving the crank, the whole electrical system went blank, with the RPM needle stuck in the middle of the rotation system, And only the green Neutral light was glowing lightly. Other than the Neutral Sign, every thing went off when ever i tried to crank the engine. And no matter how many times, i put on /off the engine kill Switch, the same issue stayed.
Both the times, the problem went away with Simple PUSH Starting (Dhakka Start) the bike. After the Push start every thing became normal (with the clock and trip meter being reseted). Even the Headlight didn't show any flickering or the Strength Of the light too didn't reduce after the bike became normal.
I still cant get the actual reason of Such glitch, but i dont think the battery has any issue. (last glitch being almost an year ago, and the Bike Still Starts on first push of crank switch)

also continuing with the Same topic, i was a bit skeptical at first when you mentioned that the simple earth mod has resulted in increased low and mid range performance! I mean, how can a simple electrical connectivity mod would result in improvement in the performance field
But then the more the read on and with the explanation given by you and PSR sir, the reasons and logic became some what clear. However the CBR is a FI bike, where the fueling is ECU controlled taking many factors and parameters into consideration. My NS being a carb bike, i Doubt the earth mod will make any difference in that low/mid range performance segment. May be you guys can give some clarification on this.

Third, I am looking forward for an upgrade to a R3 next year. So after i come back from my scheduled trip this Nov, i might experiment with Rimul R4 oil as well. I have religiously changed the oil and oil filter in these three years, And right from the Second change, have been using Motul 3100Gold (Mineral Oil), and after two cycles of that have been using Motul 7100(FS Oil).


Lastly, would also thank you for getting us linked to NINJA SANS thread as well.. learned a lot from that thread as well

Re: RESPECT to your "The story so far.."

Mr.Shibadip....Good to Hear From you....yes it had been a long time since I had seen any post from you, and now I know the reason...Good that you are taking Life in your stride...
Coming to your specific problem , even Carburetor Bikes can benefit from the Earth Wire mod IF the manufacturer had used Chassis and engine casing for Earth circuit ( batteryNegative return)completion. I hope you had seen my post in detail regarding this. I did the first such mod on my carb., Karizma and did get a better acceleration . Since those days there were more problems connected with Carburetor throttle slide getting stuck, and Battery compartment mod for a Aamaron 9 AH battery, this was not posted in ZMA thread...I feel you should first check for loose contact in the Ignition switch and the Main Fuse holder...Since I do not readily have the circuit and Earthing diagram for P 200NS I am at a loss to even guess on the Earthing route....
Wish you good Luck..

Re: The story so far.. My Honda CBR 250R

Hello shv18, I am planning to buy a used cbr250r. Though I have posted this message in CBR250R thresd but still re-posting it here just to get your openion on this. I have found 4 SBR's in my budget, details below. Please share your view on this ASAP.

1) A Red-Silver CBR (STANDARD)
2012 model, 17,000 kms done, haven't seen this bike in person but by photos, tyres will be needed to change, all papers clear-Asking price:85,000 INR

2) A Red-Silver CBR (STANDARD)
December 2011 model. 6,500 kms done, personally seen and ridden the bike,scratchless bike except a single scratch on silencer guard because of fall while standing, everything else is good, all papers clear-Asking Price:1,00,000 INR

3) A Black CBR (STANDARD)
2012 model, 6,700 kms done, personally inspected and ridden, only chain and sprockets are rusted from out side, everything else is in good condition including tyres, completely scratchless, good service history, he doesn't have original RC yet, but i think can manage to get it by appointing agent, on one of the insurance papers and on some other papers (don't remember the name of those papers) there is mentioned ABS model but it is non ABS model-Asking price:1,10,000 INR

4) A Red-Silver CBR (ABS)
November 2011 model, 20,000kms done. personally inspected and ridden only for some meters in his flat premises, bike is scratchless but it has some scratches on silencer guard but no where else like on handle bar or fairing so there are no marks of bike crash, owner told it happened in during parking the bike at home and office. front tyre is contiGo which is completely bald and have to replace it. Rear tyre is i think like some button tyre, dont remember the brand, but if I am replacing the front, will definately replace the whole set, i am thinking of going with Michalin (other suggestions are welcomed). chain and everything is in good condition,, there is some color pilled off on handlebar clip-ons and a bit rusting due to aging, some fins on radiator guard is bent, RVM screws are badly rusted, as per the owner he has done one service 2 weeks ago, everything else is good/ok. all documentation is clear, insurance expiring in this month end.-Asking Price:1,00,000 but ready to give the bike for 97,000 INR

NOW, i am not able to make up my mind for which bike to go, I will have to complete all documentation process and bike maintenance in max 2 weeks as i have a ride planned to gujarat, my home, in diwali. At present i am riding Apache 180 ABS model and know and appriciate the importance of ABS, had many close encounters on road and was saved by ABS. By this msg, i just wanted to know your views, yes I am short of money but can manage upto 1 Lakh and don't want to compromise for some bucks for which i regrate in future as this will be my long term bike. Still asking you this just for the peace of my mind.

Please try to reply ASAP. Also if anyone can guide me in the process of bike transfer and cost for the same, both if done individually and hiring an agent, it will be very helpful for me to plan my finances.

Thank You n advance.

Re: The story so far.. My Honda CBR 250R

[MENTION=32641]shv18[/MENTION] and [MENTION=32286]psr[/MENTION] sir, you guys are on a completely different league. Well, to come to the point, i picked up a used CBR 250 in November 2014 (STD, 2011 model) and have restored her back to her glory days. She was utterly neglected, but still had a good heart with only 8650 clicks on the odo. She's clocking 28K clicks now . I've recently started the HDEO (Shell Rimula R4) treatment, it's still too early as I've only clocked 200 kms on the new oil. Observations are - smooth acceleration with no vibes creeping in at that annoying 4.5K RPM, the engine seems to have become more silent now and i'm also noticing a funny smell from the exhaust. It smells just like the oil, any indications on this?

Will be carrying out the earth wire mod, just to check and see for my own personal satisfaction if there is an improvement on the performance side. Now, i tried opening up the side panel, and forgive me if this sounds like a really stupid question, but to access the bolt attaching the side panel to the frame, must one remove the entire tail assembly?

I opened up the bike on saturday, and found that a lot of bolts on the fairing and headlight assembly have been mismatched, and a few bolts are not even part of the bike (read no hex heads, philips head, wrong length and an add on of washers). I inquired at the SVC if the stock bolt kits, but they said no. Any pointers on this? And the rubber bushes on the clamps of the fairing are missing too, resulting in vibes. Need to get this replaced ASAP too.

Re: The story so far.. My Honda CBR 250R

I do not own a CBR250R ..From your post I would pick the 1.CBR with 17,000 Kms on odo at Rs.85K...or the last 4. ABS model with 20 K on ODO priced at 1,00,000/-.The second and 3 rd mentioned CBR somehow seem to be neglected as well as not true in ODO reading.....and asking price is high...Listen to the engine after it warms up, that is when you can hear difference between a well maintained ,Good Engine and a Not cared for and bogus ODO engine. The Wear of the tire and condition of the Chain and sprocket are further indication of the same.
Senior OWNERS Like Aargee are better suited to give Valid answer on this...

As for the oily smell it is ok...IF there is no smoke from Exhaust. Check the Exhaust tip for oil sticky deposit. If it is there, then check for smoke in Exhaust either at Cold Start or under regular running. Check oil consumption every 500 Kms .
Regarding missing fairing bushings and proper screws for fixing the fairing, You can try the SVC or if you have samples of each, hunt for it at Automobile shops and get it.
Good Luck..