Re: Karizma/Karizma R Ownership Experience

The AFR setting will vary depending on engine vacuum and compression, as also the Air Filter porosity and cleanliness. The stock setting to begin the tune is 3.5 turn like you did, and adjust it for the level of FE and acceleration required. The Rust deposits seen in the float bowl is not a good sign...it means there is rust inside the Petrol tank.. If it is so then over a period of time it will start to leak through holes in tank and will also plug the Petrol tap filters and very low to no petrol flow will be there...So check for Rusting inside tank.
The stock Karizma came with 20w40 and using a grade above w50 will make the engine sluggish and a slight drop in FE. The oil deposit inside Air Filter box is directly proportional to the amount of Blowby in Crankcase..It there is a pool of oil in 5~6 k Kms then suspect blowby due to Piston Compression ring leak...in other words your engine may be getting worn out OR your Piston rings are not free, and stuck in the grooves.

Unless you open the clutch side case and inspect the condition of clutch bell and bearing you will not be able to judge it's condition..You can get it done at ASC or with a Mechanic with good knowledge and Good TOOLS.

Re: Karizma/Karizma R Ownership Experience

That is absolutely personal choice, thumb rule is to not go below the operational grade(the value after W).

My CT100B is suggested to run on 10W30, but I go with 20W50 and worst case scenario I get some vapor leaks near the PCV valve, and this is after riding at WOT around the country, my reason for opting for 20W50 was due to its longer drain intervals cause even 20W50's would crap out around the 2k km's mark given the conditions.

So I'd say go with what puts you at ease.

Re: Karizma/Karizma R Ownership Experience

[MENTION=37035]ashwinprakas[/MENTION] Buddy, do you think that 20w50 is a higher viscosity oil for zma, I've heard that many zma owners prefer 10w30! I've tried using it too. But 20w50 makes my machine feel more refined and smooth!

Re: Karizma/Karizma R Ownership Experience

That sounds credible! Thanks.

Re: Karizma/Karizma R Ownership Experience

For whatever reason be it overfilling or high viscosity if the oil pressure exceeds a threshold you'll notice excess oil residue in the air filter box, which is nothing to to fret about. The same can be observed after longer intervals as well. Just make sure to open the drain once a year to let go of the gunk and you're good to go.

Re: Karizma/Karizma R Ownership Experience

Sir, I don't think it is an issue related to over filling of engine oil, cause I always make sure that I drain the entire oil out of my engine before refilling it! I use motul 20w50 semi synthetic oil (1 ltr) to refill !
Thank you
-L7

Re: Karizma/Karizma R Ownership Experience

Sir please guide me what to do?

Re: Help with HH karizma PS carb tuning! (Need expert opinion)

If you mess up the tuning you can always head to nearest Hero service center and they'll fix it for cheap , no big deal . But the carburetor has to be clean in the first place to achieve a good tune . The dirt you are getting in your carb seems to be rust , so firstly check the fuel tank for any water or rusting inside it . Empty & clean out the tank if so , else the carb shall choke up repeatedly from it . Check that the water-drain hole and tube inside the tank-cap is clean and clear to prevent water entry during rains .
to prevent this fill engine oil upto correct level of the dipstick , be careful not to overfill oil .

Re: Karizma/Karizma R Ownership Experience

My issue seems to be solved now! I retuned it yesterday to somewhere in between (3.15-3.20) rotation anti clockwise from full tight! My bike was drenched in rain today and I started it after almost 8 hours! I left to college early morning and it rained heavily till evening here, after getting back from college and gave it a kick start, it started like charm with a single kick, plus the acceleration seems to be more refined and responsive now! Cleaned my carb as well as the fuel holes with petrol as suggested by [MENTION=37035]ashwinprakas[/MENTION]. Thankfully the issue seems to be solved now! I have issues with valve clearance, as my ZMA is giving a tik tik noise when I start it, but later on it's gone! Most probably it must be an issue with valve clearence itself as the engine heats up the metal expands and Gap is filled, although I'll give a check on the tension of the timing chain as well! Will keep you guys updated.
Thank you.
-L7

Re: Karizma/Karizma R Ownership Experience

Update on new rear shocks.
The comfortable ride is back . I can't vouch if the gas filled ones are any good than the stock ones, will have to ride a stock one back to back to verify that.
I am just wondering what is a thumb rule to realize that the suspension setup has gone bad and needs replacement. This time it clicked only after I paid a visit to the orthopedist.

Next thing that is bothering me is metal clinging noise observed after have ridden the bike for 20+ km and when the engine is hot.
I am suspecting the Tappet settings. I had asked the ASC guys to check it, but they ridiculed it out mentioning that it is better to not fidget with the settings.
I am nevertheless going to take a DIY for tappet settings as written by [MENTION=37035]ashwinprakas[/MENTION].
Any more inputs would be highly appreciated.

Also, looking forward to answers for [MENTION=93163]Lone7raveller[/MENTION] card issue. Carb cleaning is also on my list.

Re: Karizma/Karizma R Ownership Experience

Hi there,
I have got K&N on my Karizma R (directly fotted on the carb). The initial thrust has increased alot which is really pleasing to experience and I am quite happy with this alteration. But, as far as damage to carb is concerned, I feel that dust particles may be going inside. Planning to get UNI Pod filter for it might give less pain to the carb !

Help with HH karizma PS carb tuning! (Need expert opinion)

Hi everyone, I'm a DIY kind of guy, but as of now I think i messed up with the carburator, I always wanted to know how this tuning works and wanted to try it out on my bike ( biggest mistake I've ever done ) did some basic research in the internet and headed up to tune it ! Did it a couple of times and felt that something's not right, my bike started showing cold start issues, unstable rpm reading, so I thought I'd stick to stock tune which is somewhere in between (3.5-4) rotation anti clockwise from full tight! As of now my ZMA runns on an A/F ratio of 3.5! But I started facing mileage drop issues with this as well, cold start seems to be solved but when today I tried to kick start my bike after a couple of days, and it rained heavily for the past two days here! It didn't even bother to start up, after turning on the choke and and after some kicks I got ignition ! I had cleaned the carb twice and found out that there was a lot of dirt in the bottom of the carb! Plus I have this oil leakage in the airfilter ! Need supervised advice! Thank you

Re: Karizma/Karizma R Ownership Experience

The bend in the rear shocks will definitely affect the rise and damping factor..good that you have changed it..I presently own a Karizma and regarding the bikes I had owned the list is long..from vespa,fantabulus to Honda MVX250 etc.. Presently leading a retired life and working as a digital Audio Video consultant ..

When you disengage the clutch the engine is de-couped from the running gears load and so engine has less load, which may account for the reduction...Otherwise Cluctch bell bearing wear out is a possibility..
Good luck

Re: Karizma/Karizma R Ownership Experience

Well I think the sound is associated with valve clearance of both the valves! ( Exhaust and intake) there must be gap in between these two valves and when the engine heats up the metal expands thus reducing the sound, although do give a check on the tension of the timing chain as well!

Re: Karizma/Karizma R Ownership Experience

Sir this sound reduces while pressing the clutch on idle,
Every mechanic at my place is saying for a complete overhual.(maybe they want to make money)

Any valuable input that why that thad thad sound reduces on pressing the clutch lever.