Re: Bajaj CT100B

Thumb rule is that the carburetor setting should not be changed unless the carburetor goes through a complete overhaul i.e overhaul kit with new screws(AFR Included) are put in.

Personally this is another reason why I dislike going to the SVC, they implement quick fixes that adversely affect the longevity of the motorcycle.

AF- Air Filter
SP- Spark Plug
SAI- Secondary Air Injection

In Sibun's guide you can skip the SAI disconnecting and connecting part as the BS3 CT100B doesn't come with a SAI unit.

Better to DIY than give to SVC, and if you manage to get the valve clearances please do share the same, due to unemployment I don't use the motorcycle much, I wish to fix everything in one go once I have a decent source of income hence collecting the required data.

And other than periodic consumable change and spec adjustments your motorcycle doesn't require any other maintenance, and all these things can be done by yourself within a few minutes, the most time consuming are changing brake liners, even they aren't complicated, just time consuming(and dirty).

Same thing, rather than periodic adjustments I would go with adjusting the same when it starts to get noisy, not the right method but gets the job done.

Not ZMR, the ZMA a.k.a Karizma R. A wonderful motorcycle with so much character but fact is when it comes to km's done and money spent I'll any day side with a Bajaj. And owning the P220 as well I can say that the CT100B kills it when it comes to both reliability as well as km's to money spent.

Plus not to mention I hate having to remove the P220's fuel tank to change the head bulb's, though not as troublesome as it sounds it can get a bit irritating when changing in the middle of a ride, especially when done in low light conditions.

Re: Bajaj CT100B

I will be going to Bajaj SVC on Monday, I will update regarding the clearance for CT100B.
The clearance for CT100 (old) is confirmed as 0.5mm intake and 0.7mm exhaust.

Re: Bajaj CT100B

Thank you! That would be of great help as the SVC here hasn't been the least helpful in providing the information.

Re: Bajaj CT100B

Hi.
I reiterate what has already been said.
Your fuel mixture was super rich.

My carb settings were screwed up earlier and black smoke blah blah blah. Check my post in the other thread about this.

Rule of thumb (which means mostly not always)
Black smoke = carburettor issue
White smoke = engine issue

Guess what even I don't have a job right now, though my 1 year service bond will start in about 10 days, if selected.

Forget whether they cheated you or not.
You need them till your warranty exists. Then do everything yourself or see a local trustworthy mechanic for major stuff.

Buy some spanner sets (open and ring) sizes 6-22 should be pretty adequate. These are generally more than enough
A T-spanner 8mm is needed for front chain sprocket cover bolt removal. Reversible plain and Philip head screwdriver driver. All tools must be forged.

Ideally your spark plug tip should be brown.
Black = rich mixture.
Whitish deposits = very very lean mixture.
Both are damaging to the engine.

Amaron sealed battery (I have no vested interests in this company) is pretty cheap and has lasted me more than a year with normal function. No leakage or seepage or further destruction of battery box as was the case with the standard lead acid batteries that I got with my bike - manufactured by a famous company.

Re: Bajaj CT100B

Hi Guys,

I am posting to report on the condition of my CT100B after around 6 months of use and 1 servicing. I had received my unit back in march and since then i have covered 3500 KMs (only used for office commute).

The bike is an excellent ride with good control and agility. The only issue i find sometime is that with someone sitting on backseat if you accelerate too fast the front wheel goes up in the air! Happened twice with me. Also the handle is very light and needs good grip and control. Even small obstacles like stones or pipes make bike unstable as the tyre are not wide enough.

Other than that i am covering 55 KM daily without any issue in full traffic conditions. The bike maneuvers easily and is stable on low speeds. I had purchased the headlamp as suggested in the thread but haven't replaced them yet as most of my driving is in daytime. Haven't changed my engine oil after first servicing.

I have been tracking the FE diligently and found that i am getting good fuel efficiency (60-70) on average. Though there is a noticeable dip in FE recently due to multiple factors like worsening traffic and road conditions and also due to rain i was driving with lower air pressure. I am not consistent with Fuel station and fill in the nearest one once in reserve.



I am due for my second service this weekend and will report back on the cost. I also purchased an AMC during first servicing and i am not sure if these are actually worth while.

Re: Bajaj CT100B

Happens, you'll get used to it. Initially even I had the problem of popping the front, it is due to the very short first gear which almost acts like the Hanuman Gear of heavy duty vehicles, which is a boon when you're carrying load up a steep incline.

As for handle bar feedback, that is an advantage. Don't hold on to the handlebars too tight, have a loose grip on the bars and use your knees to grab on to the motorcycle, do watch 'Keith Code's Twist of the Wrist' if you find the time.

That is decent figures, I don't calculate my FE as it remains constant as long as maintenance is carried out religiously, but for reference my CT100B offers roughly around the same as my P220 when ridden within city limits and on the highway keeping constant speeds over 100 kmph I get overall 60kmph which was calculated after a 2 week around the country ride covering close to 8k km's.

Thumb rule is not to be bothered about FE as long as consumables are changed on time and there is no smoke or spark plug fouling.

For best results maintain an oil change interval of 2k km's extended drain intervals are not worth the money, I'm currently running on Shell HX3 which is 280/- per liter, makes more sense considering the price and change interval, better use newer cheaper oil frequently than keep expensive oils for longer intervals.

Not sure what AMC is, haven't taken the motorcycle to the SVC after purchase, I do my maintenance on my own, cheaper and gives me more peace of mind, plus the CT100B has been in the market for decades now hence the confidence of breaking warranty. I'm currently at around 23k IIRC.

Re: Bajaj CT100B

These are some insane discount on the CT100 range due to Seasonal Discounts. I was told that the CT100B costs about 36.8K OTR.

Re: Bajaj CT100B

Here are some latest pics I took a day ago, Bike still running good. Only one niggle is that if you keep it standing for more than 8-10 hours then you have to warm it up for 10 min at least else you will get hiccups while riding for first 20-30 min of ride, the kind you get when your bike goes from ON to RESERVE while riding. Except that, bike is a really great.


..

..

Re: Bajaj CT100B

10 minutes seems a bit too much to set the bike for a proper cold start, if you ask me.

Re: Bajaj CT100B

That doesn't sound right, after roughly the first 500 mts at max you should not have any issues riding the motorcycle like normal.

Plus you are not supposed to let an air cooled motorcycle idle for more than 2 minutes as possibility of accelerated engine wear goes up.

Re: Bajaj CT100B

CT100B has these hiccups I mentioned from day one I own it, it becomes more problematic in winter, in summers, not much. 2 Questions:

1) Then may the the mechanic made mixture too lean, then I need to check the fuel-screw next to idle screw on carburettor
2) accelerated engine wear ? Can you explain a bit, google only talks about cars on this.

Re: Bajaj CT100B

needing to idle it that long is not normal.. get it checked and tuned by another mechanic, and make sure the choke is working properly.
idling for more than a minute or two is a waste of fuel.. and unnecessary wear since you aren't moving.

Re: Bajaj CT100B

[MENTION=26482]arnuld[/MENTION] since the power generated by the engine is not utilized and hence unnecessary wear as referred above. All the engine components will work just the same but the bike won't move, which is a big waste of fuel. IMO, do the following:

1. Get your carb mixture checked and cleaned if necessary.
2. Have the choke checked for any errors if you're enable to cold start even with the choke on for a minute or two. Even the most sluggish or cold body bike will warm up in a 100 to 200m even after days or hours of non-usage.
3. Do check if your plug has carbon deposits or just take a photo of the spark plug so that someone like [MENTION=37035]ashwinprakas[/MENTION] () who has good experience with the CT100 can help you determine the condition of your mixture.

Re: Bajaj CT100B


Choke is great and Spark plug is fine too. I just made the fuel a bit rich. had to adjust both the idle and fuel screws and I took just 100 meter ride and it is not doing hiccups anymore. Will ride more and update. I had this bike random-shut-downs problem for which I was duped with 3K by ASC and problem was still resolved. @ashwinprakas helped at that time and resolved the problem.

Re: Bajaj CT100B

Since the motorcycle is air-cooled when idling for long there is possibility of scratching/cracking cylinder wall due to heat build up.