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Honda CBR 250R

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  • Nanda SS
    replied
    My CBR got new Coneset with runs, Front fork seals and oil, New chain sprocket, brake pads, Engine oil, Air filter and Fuel filter replaced last month...

    After these updates, I feel more vibrations around foot pegs and Handle bars (at any RPM), so I took CBR again to Service center they checked and simply tighten the Handlebar Stem nut and lube the chain... But this issue still persist...

    And exhaust sounds slightly more bassy then before.

    Any Inputs to resolve this peculiar hitch are welcome!!!

    Leave a comment:


  • Shashank K R
    replied
    Originally posted by Vishal Wagh View Post
    RTR200 clip-on good to go with then. Also, which specific year RTR 200 clip-on is perfect match? Because in videos they have mentioned RTR 200 4V.
    One more question, Has anyone changed chain Sprocket size for better low end torque to avoid frequent change of gear in traffic or in broken roads.
    All RTR200s are 4v
    The handlebars for all RTR200s are the same except that the older ones (BS3/BS4) have no thread for the bar ends. They've also gone up in price from around 1600 to 2200.
    If you decide to go this route, get Karizma ZMR clutch cable and appropriate bar ends (like the one from Bullets).
    Last edited by Shashank K R; 02-04-2023, 02:10 AM.

    Leave a comment:


  • B7ACKTHORN
    replied
    Originally posted by siddhant View Post
    Hi guys, I just came back from a long trip (2500 kms) and I noticed that when I get my hands off the handlebar, the handlebar wobbled a bit. It was more pronounced at higher speeds. What could be the potential reasons for this? Is it because I had luggage weighing ~18 kg at the back seat?
    Many reasons can compound a wobble starting with excessive load on the rear and light front end, poor tire pressure and worn out tire/bearings and also a tight T stem. If you've observed this wobble after having to fully load the bike then it's perhaps the uneven weight coupled with high speeds. If the wobble doesn't replicate itself after unloading the bike, then there's nothing to worry about. Try to replicate this issue when the bike is loaded with a pillion and as you'd ride daily, if this issue replicates itself, start off with inspecting the front tire, tire pressure and the a loose/tight T stem. Good luck.

    Cheers!
    VJ
    Last edited by B7ACKTHORN; 02-01-2023, 03:34 PM.

    Leave a comment:


  • Vishal Wagh
    replied
    Originally posted by Ratan Prabhu View Post

    Not sure. Let others comment. But from what I've read, it can be the front wheel bearings, different quantity fork oil in both front shocks, uneven front tyre wear.
    Your right, Also rusty Cone set bearing.

    Leave a comment:


  • Ratan Prabhu
    replied
    Originally posted by siddhant View Post
    Hi guys, I just came back from a long trip (2500 kms) and I noticed that when I get my hands off the handlebar, the handlebar wobbled a bit. It was more pronounced at higher speeds. What could be the potential reasons for this? Is it because I had luggage weighing ~18 kg at the back seat?
    Not sure. Let others comment. But from what I've read, it can be the front wheel bearings, different quantity fork oil in both front shocks, uneven front tyre wear.

    Leave a comment:


  • siddhant
    replied
    Hi guys, I just came back from a long trip (2500 kms) and I noticed that when I get my hands off the handlebar, the handlebar wobbled a bit. It was more pronounced at higher speeds. What could be the potential reasons for this? Is it because I had luggage weighing ~18 kg at the back seat?

    Leave a comment:


  • Ratan Prabhu
    replied
    I have a contact who deals in Honda Genuine Parts. Most of the CBR250R parts are available in stock or on order basis (max 15 days). I think we aren't allowed to post contact numbers or external links here. So please do feel free to DM me. I will give you the link to their Instagram page and contact number too. (Myself purchased RR unit and front mudguard (candy ruby red) recently which were not available anywhere else.
    Last edited by Ratan Prabhu; 01-30-2023, 02:36 PM.

    Leave a comment:


  • Vishal Wagh
    replied
    Originally posted by Shashank K R View Post

    I'm running RTR200 handlebars with no issues. I had to change the clutch cable to that of a ZMR and trim the windshield sides though.
    I believe the Hornet fork size is the same (33), but you might run into other compatibility issues.
    RTR200 clip-on good to go with then. Also, which specific year RTR 200 clip-on is perfect match? Because in videos they have mentioned RTR 200 4V.
    One more question, Has anyone changed chain Sprocket size for better low end torque to avoid frequent change of gear in traffic or in broken roads.

    Leave a comment:


  • Vishal Wagh
    replied


    Okay, So Honda messed up with their Bigwing customer too
    Last edited by Vishal Wagh; 01-30-2023, 10:02 AM.

    Leave a comment:


  • Shashank K R
    replied
    Originally posted by Vishal Wagh View Post

    Honda is selling CB300R in our market, with same engine with big bore kit and few change related components. But the overall parts are same like radiator, so in case of thermostat we can source from there.
    It is not easy to get spares for the 300R unless you own one or have some contacts in the showroom. Multiple BigWing SVCs told me that due to customer frustration with the lack of in stock spares, they don't sell parts to non owners.



    Originally posted by Vishal Wagh View Post
    ​​​​
    ​​​​​​I want to raise the handle bars. I have found out some YouTube videos regarding the same who have swapped the handlebars with TVS Appache 4V. But i also noticed that the CBR250R triple clamp (upper) has similar to Honda Hornet 160 (as they both are sharing the same fork, but not sure).
    I'm running RTR200 handlebars with no issues. I had to change the clutch cable to that of a ZMR and trim the windshield sides though.
    I believe the Hornet fork size is the same (33), but you might run into other compatibility issues.
    Last edited by Shashank K R; 01-30-2023, 01:40 AM.

    Leave a comment:


  • Vishal Wagh
    replied
    Originally posted by leech View Post
    Guys, need some knowledge here... I thought of buying a thermostat from the svc just in case mine goes kaput in the next 5 years. Is it necessary? Can the cbr run without thermostat valve like we do for some old cars where the thermostat fails?
    Honda is selling CB300R in our market, with same engine with big bore kit and few change related components. But the overall parts are same like radiator, so in case of thermostat we can source from there.

    Leave a comment:


  • leech
    replied
    Guys, need some knowledge here... I thought of buying a thermostat from the svc just in case mine goes kaput in the next 5 years. Is it necessary? Can the cbr run without thermostat valve like we do for some old cars where the thermostat fails?

    Leave a comment:


  • Vishal Wagh
    replied
    Hello Guy's,

    I want to raise the handle bars. I have found out some YouTube videos regarding the same who have swapped the handlebars with TVS Appache 4V. But i also noticed that the CBR250R triple clamp (upper) has similar to Honda Hornet 160 (as they both are sharing the same fork, but not sure).

    So my question is does anyone tried or confirm that Honda Cbr250r triple clamp/trees (upper) is similar to Honda Hornet 160. So, that we can have best option in terms of raised handlebars.

    Thanks

    Leave a comment:


  • Nanda SS
    replied
    Originally posted by leech View Post

    I too replaced cam chain tensioner at 25,000 kms which failed due to low engine oil level (had to top up ~600ml by the time i discovered it). The symptom was stitching machine sound at cold start. I insisted to change the CCT at Didar Chennai, after which the replaced one is still going at 77,000 kms. I have no shim issues. Best thing you can do for your bike is to avoid pressure wash, check tyre pressure every week, lube the chain every weekend or every three days if on a long trip, and start the bike every day. Obviously, checking oil level every week is a good practice too.
    So it seems a preventive measure to replace after 30K KMS, to avoid shim issues....

    Pressure wash means water wash service station right? because I have using a gun like attachment with hose to wash my bike...

    Note: My CBR's alloy paint gone already 70% portion, need to paint (DIY)...

    Leave a comment:


  • leech
    replied
    Originally posted by Vishal Wagh View Post
    Hi guys,

    My bike has done ~23,000km in 10 years but I recently started to notice tick-tick type noise through engine head. So, decided to check one by one 1. I checked the operation of chain tensioner, working good.

    Removed valve cover for further investigation
    2. Checked timing chain so check whether it is tight or not. It was tight.

    3.So finally I decided to do valve clearance measurements
    Inlet
    0.16mm & 0.15mm (requires 0.13mm~0.19mm) OK

    Exhaust
    0.19 mm & 0.20mm (requires 0.24mm ~ 0.30)
    Not Ok
    So, I do the math and found that I need to choose thinner shims.

    So, here I was little confused that how the hell valve clearance became tighter(usually it wear out so, need to loose).
    So, I called the friend who was working in Ducati as Service engineer. He told me, Due to exhaust gas heat, the valve gets heated and the heat is transferred to the top part of the valve called steam And Shims are placed in between valve steam and fingers follower. Due to which shim size gets expanded over the period of time. Which makes the valve clearance tight. He also told me that, due to this problem manufacturers given Exhaust valve clearance is more than Inlet valve clearance.


    Following are the conclusion of my observation after long time.
    1. After shim replacement, the noise was not completely gone. But i was in town where I don't have option. But noise was very less, so i continue to ride.

    2. After talking with few local Honda mechanic I found that Cbr250r don't have this shims issue, and only by replacing the chain tensioner will short out this issue. I know they are not completely right, still I have checked the tensioner thoroughly and found no issue with tensioner.
    3. After riding the bike city traffic found loss of power and engine sound is Lil louder, even engine rpm climbing to 1800-1900rpm from 1600rpm every time I start it (even engine is hot).
    4. So figured out to replace the chain tensioner and see, after replacement all the above niggles gone and engine sound become smooth and rpm was settle at 1400rpm instantly. Rode it few kms and found bike performing really good.


    So, to conclude please change the chain tensioner as a preventive maintenance. As it is the weakest member from engine assembly (herd from most of local Honda mechanics) to avoid this kind of issues.

    Also do share your experiences about parts need to replace as preventive maintenance.
    I too replaced cam chain tensioner at 25,000 kms which failed due to low engine oil level (had to top up ~600ml by the time i discovered it). The symptom was stitching machine sound at cold start. I insisted to change the CCT at Didar Chennai, after which the replaced one is still going at 77,000 kms. I have no shim issues. Best thing you can do for your bike is to avoid pressure wash, check tyre pressure every week, lube the chain every weekend or every three days if on a long trip, and start the bike every day. Obviously, checking oil level every week is a good practice too.

    Leave a comment:

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