Re: The Honda CB Twister

Guys, Now i am convinced that twister does have Air screw. I re-tuned my twister assuming its an Air screw and carried out a fuel efficiency test on tank full.... and i am very happy with the results. I was getting 55kmpl in stop and go city riding condition before and now mileage has increased to 64.5kmpl.....almost 10kmpl jump. On highway i got 78kmpl@ speeds between 55-60km/ph.Their is slight bit drop in power in second gear but throttle response is very crisp in 3rd and 4th gear. I was earlier mistaking it as fuel screw...... Thanks to pinaki and Mrbabu for pointing out the mistake.
During tuning first i turned the air screw at position where i get maximum RPM....but at this maximum RPM the engine beat was not constant......so next step was to make RPM stable was by turning idle RPM screw so that engine RPM becomes stable and beats constantly at lowest possible RPM without any pause. one more thing i had to do is adjust the screw under the throttle cable on handle bar..... to increase or decrease the idle RPM without turning the idle screw. it will change the throttle free play a bit...but its very useful in finding lowest stable RPM.

Re: The Honda CB Twister

what exactly mean by "Power loss at first Twist of accelerator"?

Re: The Honda CB Twister

1. get your air filter cleaned or replaced (you can check by removing the filter and riding a few 100 meters to check if the 'lag' persists, if it doesnt 'lag' then its probably the air filter which needs cleaning or replacement)
2. If that doesn't solve the issue, get the carb opened up and check the jets for blockage and get it cleaned.

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That's a fuel screw, when you turn it out i.e anticlockwise you richen the mixture and hence the rpm rises and when fully closed it reduces the fuel intake causing the engine to sputter and die out.
Most 4 stroke carbs have fuel screw.

If it was the Air screw, then turning it out i.e. anticlockwise will increase the Air ratio making it LEAN, and turning it in will reduce the Air, making the mixture Rich.
Two strokes have air screw.

Re: The Honda CB Twister

Your understanding is correct as per the bold part. The Twisters screw will behave exactly as per your statement. Hence it is an air screw.

Kindly understand that it is known fact(Twister has an air screw). Please don't confuse other Twister users who are about to tune their AFR.

Re: The Honda CB Twister

I may be wrong..
But if the bold part you mentioned from my prev post, it means that if you turn the AIR Screw anticlockwise it will lean the mixture and reduce the rpm and eventually shut down the engine. But that is not the case, since when he closed it fully and slowly opened it during tuning, the rpm ROSE << indicates its a FUEL screw i.e. it meters the amount of fuel entering the carb.
I am not confusing anyone If you do some research on carbs and tuning (especially the differences in two and four stroke) you will understand what i am saying.

Most 4 strokers have a FUEL screw and 2 strokers AIR screw. Pls let me know if you have the carb manual or carb make/model # for the twisters carb or atleast a service manual
I am 99% sure its a Fuel screw !!

Re: The Honda CB Twister

Chill man,
Most things you understood correctly but some internet blogs misguiding you with the bold statement. It is sweep statement and it is not true.
FYI, our evergreen splendor has an air screw which is also a 4 stroker.

Sorry I don't have required documents to prove it. If you still believe it is 99% fuel screw, please go ahead tune your twister according to your belief and post the results here.

Cheers.....

Re: The Honda CB Twister

Ok, if you think its a air screw.. then so be it Our Twister (my brother's) was sold a few months ago so i cannot get my hands on a twister.
Anyway I'd like to close this discussion on the 'screw' right here. Thanks for your inputs on this topic.

Re: The Honda CB Twister

By "Power loss at first Twist of accelerator" I mean the lag in throttle response.

Re: The Honda CB Twister

@smartrider, a couple of posts ago, i have suggested a few 'fixes' for the issue you reported. let me know if you have been able to try them out.

Re: The Honda CB Twister

whats the meaning of "first Twist of accelerator"?.......there could be some obstruction on air side as s1d said. An Air suction pipe is placed under the seat so first open the seat and check if anything blocking the passage under the seat....like document papers etc.

Re: The Honda CB Twister

Ok,I'll check the storage cabin.

Re: The Honda CB Twister

Hi, I don't own a CB Twister but planning on buying one. Require inputs from owners on some specific queries:

1. Have any of you changed the stock air-filter to a performance filter? If so, which one and how is the result now.

2. Any one tried to over-gear it? If yes, which OEM front/rear sprocket you used.

3. What is the range of the bike from full-tank to empty, when ripped hard all the way? Also, what is the usable reserve quantity?

4. Anyone used a free-flow exhaust? Or rather, is a FFE for the twister available? If yes, you know what else info I need

5. What is the max distance that you have covered with the bike without the bike stopping for rest?

Will really appreciate any help in this regard. Thanks a tonne in advance.

Re: The Honda CB Twister

hi, here is ans.
1)One member had fitted K and N filter along with mono shock suspension.....search for previous posts on this forum.
2)NO
3)Fuel tank capacity is 8 liters.....including reserve capacity of 1.5 litrs. Hard ripping should give around 50kmpl...so 8x50=400km is the range you can expect.
4)there is no FFE available for Twister.......you can fit some aftermarket one at your own risk
5) I have done 200km non stop 4 times without any issues at moderate speeds.

Re: The Honda CB Twister

Twister modified....to make it look like KTM!! brilliant efforts!!

Re: The Honda CB Twister

I too changed the both shoes now(35k kms)

my front left forks was leaking the oil due to some loosened nut.So to fix that i'd removed the front wheel assembly that time only i've seen shoe is totally worned.
So i checked the rear , that too worned so changed the both.

Friend is the same issue i faced some weeks back. Solution for this is clean the carburetor some petrol impurities will be there

1.K&N will fit
2.you can try stunners rear sprocket
3.1.5L reserve on 8L
4. Lot of After market kit is available
5.I did maximum of 350kms in 3.5Hrs even bike was eager to go but I've reached the destination