Great mod.I think you mean that you fixed the P 220 f long duration cam in the P 180ug3. The p180 ug3 has ,originally, 15/42 sprockets if I am not mistaken.Your mileage must have gone up by 10 % under same driving conditions....How is the bike pulling in each gear,and is there any vibration issues ?

@PSR: So you've been reading up my threads at different places ha? Yes its the P220F long duration cam which guarantees a bump up in overall torque produced. It is a direct fit. Owing to this increased torque the bike pulls effortlessly even when I switched to these taller sprockets. I don't know how the bike would perform with stock CAMS. As for the mileage part I did 2 mods at the same time viz. Sprocketting and K&N with large main jet. So can't really comment on the increase/decrease in mileage. The final result is I used to get a mileage of 45 in stock condition but now I get a mileage of 43 something after all these mods.

Doctor sahab.. I don't have a camera. So couldn't click any pics. But I can answer all your questions as I did it myself. The UG3 has a 2 hole mount at the front and 4 hole mount at the rear. these sprockets are a direct fit on the UG3

Doc please post pics of the rear sprocket and if possible the front sprocket and I will tell you what't different.

Sorry for the late reply.been busy with my shitty college and assignments which I have to copy from others and still get straight A's. The professors know about us copying. Still I don't get why they keep giving us such assignments...

Oops I started ranting again...

I am planning on buying a used P180 and doing the mods for better performance...So obviously I had to read your threads...esp.since you are not preaching but practicing mods.
Elsewhere another gentleman had fitted a P220 block with piston on his P 180 and getting results.He was saying in this mod., he had to put two gasket between the cylinder barrel and head to prevent the piston from hitting the head/valves. I thought there is no difference between the P200 and P220 in barrel or piston and only the stroke was more,and the P180 can be fitted with P200/220 barrel,piston combo,without any mods. Can you enlighten me on this ?

Is there any thread related to this matter? If yes please post the link.

thanks

I hope the Doc is ok with us hijacking his thread.Ideally this should belong to a different thread. But since you've posted here I'll reply here The 200 block and piston are a direct fit to the 180 as the stroke length is the same just that the bore size is different. For installing a 220 bore+piston you'll need to change the crank and the crankcase too as the stroke length differs. Also when you'd get the 200 Bore some amount of machining is required for the head so as to make it compatible with the 200. If you are against machining and want a more reliable mod, go for the 200 BORE+PISTON+HEAD kit. It is a direct fit. No extra gaskets, no machining nothing. Clean as stock. The 200 conversion doesn't want change of crank or crank case. I suggest you explore the 180 engine first with free flow intakes and exhausts, cam jobs etc. and only then move to the larger bore. Makes more sense. The head costs around 3.5k and the bore+piston kit costs around 3k more. So you'll be spending roughly 7k to 8k for just the bore job. Instead get a free flow intake like the K&N, jet it right, and a properly tuned free flow exhaust from some reputed tuner for your 180 and see how it flies past any other pulsar. This mod will definitely perform better than just the bore & head swap.

Thanks for the advise in complete form. I was planning on the same line of just doing a cam and electrical upgrade, and then move on as mind tells me .With 200 Bore+piston upgrade heat generation will be a problem..which I am against(forget the oil cooler). I am not for K&N or free flow.hmmm let us see how it goes ..Thanks again .

anyone has any idea what is the sprocket size of Pulsar 135LS UG1? i guess the chain is O-ring type.also is the New Pulsar 150 UGIV has O-ring chain?

Guys i need info pls..i want to change my Pulsar 150 UG2 to oring chain and get rid of the chain cover.

Re: sealed o ring chain for older gen pulsars

Reviving an old thread. But, yes need to replace the chain assembly in my 2005 180 UG2. This would be the second chain assembly replacement for my motorcycle, in its lifetime. I am guessing the sprockets are either 15/43 or 15/42 toothed. Need, to check. The front sprocket has 2 mounting holes while the rear has 6.

Even I am currently riding with the newer half-chain cover, an aftermarket buy. So, the chain is more exposed to the elements here.

I am planning to upgrade to the O-ring types as well. Has Bajaj or its OEMs started retailing this kit with O-ring links, with rear sprocket having 6 mounting holes?

It's been 9 years since the last post on this thread. I am hoping someone else here has made a neat upgrade.

Re: sealed o ring chain for older gen pulsars

Hi bro..

I believe your bike has 15/42 setup. But one thing stay away from O-ring chains. Our normal chains are much better and ask for lesser maintenance with no nonsense sounds, obviously i can say have more life as per my experience goes. No chain tightening often like o-ring chains.
I also advice you to buy a OEM black new full cover (if you have money)

My UG2 bike has 15/44 stock setup and some years befor i wanted to overgear it badly and tried to research for O-ring chains. Then i came to know about 15/42 setup of Pulsar180 and to my goodness i was saved from O-ring chain and other mdoification with lesser cost. I have gained topspeed and good midend with relaxed engine but lost initial punch and the bike is really dull in 1st gear.

I suggest you to stay stock with your setup and advice you to purchase the full chain cover and forget about the chain thereafter.

Re: sealed o ring chain for older gen pulsars

Hey Srini, thanks for taking time to reply to my query. I really appreciate.

Since posting my query here, I have done a little research on sprocket gearing and all that. And, your suggestion seems to echo my conclusions, in toto.

1. Somehow, since they started coming up with O-ring chains, I have had this feeling, a mental demon one may say, that my UG-2's , standard, non O-ring chains, are technologically antiquated, and a drag on the overall performance.
Conclusion - It's the opposite. I am leaning more towards non-O-ring set up now.

2. Just checked, and my current set up is 15/44. It has been changed once already. Didn't bother to research back then. May be the stock was 15/42. I am pretty satisfied with the way it pulls at the lower gears. But man! who wouldn't love a higher top-end. So, I want to go tall-geared just like you have; 15/42 sounds just fine.
Question1- Which UG2 do you have? 150 or 180? And, which version of P180 has 15/42 stock setup? UGIII? I am asking because the Pulsar DTSi Parts Manual, for UG2, has the same part number, DJ 1510 18, for the rear sprocket, across all 3 models - 180, 150 & 150KS. So, even my UG2 P180 must have had a stock 15/44 setup.
Question2- Is the loss of acceleration in the low-end very significant?

3. The stock full chain cover is so very clunky. So very grandfatherly! Replaced it with an aftermarket half chain cover just for the aesthetics. But, the roads here are bad, and the rains is a perennial affair. Just can't keep the bike mud free. Bad idea! Would be going back to full cover, albeit a different one than stock, preferably plastic.
Question - Any thread, posts, or anyone done a neat aesthetic mod? My go-to mechanic tells me that P220's chain cover would be a fit with a little "cutting". I have no clue how a 220's chain cover looks like.

4. Rear sprocket mounting holes! This is causing me worry. This thing has 6 mounting holes while the newer ones have 4. The go-to mechanic says, drilling new holes would do the trick. Am wary of the idea. No clue how the metal mechanics will behave with more holes.
Question - I hope the 15/42 kit that I get comes with 6 mounting holes for the rear sprocket. Difficult to get? Not really keen on changing the coupling and all that.

5. The million dollar question - where to source it from? The only A.S.S. here would surely be a dead end. They hardly stock any spares for this vintage. The local shops would, most likely, either be a dead-end or stocking spurious non-OEM stuff - I have had very bad experiences with non-OEM spares. Wouldn't even touch them with a barge-pole anymore.
Question- Does this 15/42 & non O-ring, standard chain, kit still come in Genuine Bajaj Packaging? If not, which OEM brand should I be looking for ? ROLON?

Re: sealed o ring chain for older gen pulsars

Answers in BOLD . Forgot to say, No alteration is required to cut links or to add chain links when you are going for 15/42 setup from 15/44 setup. Its just plug n play.

Re: sealed o ring chain for older gen pulsars

Indeed am lucky! You are such a godsend Srini. A million thanks. Those part numbers would really help making the moron, at the A.S.S., behind the counter to look up the parts in their inventory. Without a part #, they are as good as apes - the availability of any spare is only based on their whims.

The "exclusive" A.S.S. in my city is really exclusive, it's the only one and hardly stocks much spare, to sell over the counter, unless you give them the motorcycle, to let them work their voodoo magic and produce big fat bills. A simple T-stem replacement costing around 800 rs, according to them, would need a complete change of the front suspension, costing me 6.5K . Aftermarket T-stem that I got was garbage. My! how i managed to get a genuine T-stem would make for an interesting tale. I hope that the same tale doesn't haunt me with the chain set as well. Fingers crossed.

Thanks again.

P.S. - I see two different chain sets in the pictures that you have shared. 36DJ1501 & 36DJ1502, with 124 links and 122 links. I guess 122 links shall suffice.

Re: sealed o ring chain for older gen pulsars

Haha.. You are welcome bro.

Ohh.. Your spares story seems horrifying. May i knowffrom which city you are from bro.??
If not tgen try at a bigger 2 wheeler spares dealers where you can get bettee discount too. Even The set i have shared got in discount.
If not try in nearby towns whenever you visit bro.
1501 is 15/44 setup.. With chain links 124
1502 is 15/42 setup with chain links 122

124 links is for 15/44 setup because the rear sprocket is little bigger and requires extra 2 links
Whereas for 15/42 the links will be 122 for that little bit smaller rear sprocket.

but one thing i have observed is.. For 15/44 setup the chain colour when its new is something like golden yellow, where as this 15/42 setup looked somewhat black.

But what i have felt is this 15/42 setup required much lesser chain tightenings... may be hard/better than 15/44 setup or maybe its my feeling???
But in the end i feel that quality and life is good in this 15/42 setup .

Re: sealed o ring chain for older gen pulsars

PM'ed and "Friended" you. Seems you have exceeded the storage limit of your PM inbox. Do check.

It's either the A.S.S. or a couple of big spare retailers, who mostly peddle "Delhi ka maal(DKM)". They can get any sticker MRP on DKMs, almost equivalent to genuine stuff. There's so much money to be made on DKMs; so why sell genuine? Every mechanic, every smaller retailer is a minion to these big players; everyone is in the same game. The word "discount" is an anathema. Their usual gripe -"sirf 5% ka margin hai".

Well, Bajaj and I guess all automobile companies give their A.S.S. and spares stockists the facility to check the inventory of other stockists anywhere in India. And also place a particular spares order from any other stockist which he finds suitable cost and price wise. It makes for a better SCM flow. There might be spares for an older model which aren't selling in some region and are out of production while it is hot in a particular region of country.

As I had imagined, both chain-sets weren't available at the A.S.S. I then cajoled the ape at the counter to look up the inventory in the neighboring district. And, yes the 1502 is with the A.S.S. in that district. Shall be going again tomorrow and asking him to place an order for it, even if he charges me extra. Logistics are all messed up due to this lock-down and all.

Great. Never thought from that angle.

I guess the OEM for all chainsets in India is ROLON. They do mention gold chain sets on their website. Wonder, whether the "gold" is only for the bling!