Discussion Approved

Duly go through the thread on this forum, there are many thread explaining how are we supposed to go through the initial phase of new bore kit.

Can you list out what are the other changes have you done apart from bore kit? How old is the bike? Carb setting etc...let us know from where have you purchased the kit (very important).

Also, have you completed the runnin period?

I'm sure you are aware about the new bore as how it has to be treated, the reason is, if you trying to wrist the throttle with in the runnin period, might as well, lead to some disaster.

Take some note from the engine as to noise, response, settings etc and come out with specific question.

I'm sure you will get support from this forum.

how many kms have you done on the new engine??

Hey guys thx for the reply. I have done around 200kms with the new engine. It is actually 2000 model. The things like new bore + piston + rings have been changed. Apart from that everything remains the same.

Hoping to get some more information. Thx in Advance !

^^ 200kms on new engine is not worth taking an opinion on pick up and top speed.

Please wait for alteast 750-1000 kms to complete. During this period it is advised to control the speed around maximum 40kmph. Also, you will need to add extra oil on to your petrol tank for better lubrication of piston.

Whether your bike has 2t oil pump functioning or premixing,would advise to add extra atleast 30ml of 2t oil along with petrol.

Initially your bike will smoke bit more than you could imagine, relax, it is normal, remember, the extra oil that is poured in would make the engine smooth and would prevent from any scratches or seizure. Offcourse if ain't smoking, it ain't 2stroke (I'm sure many would agree )

This would also, help in getting the engine set right. If the initial period is screwed up, then you might end up having a problems due course of time.

Once runnin period is over, then check if the pick up and top speed.
Hope these pointer would have some help to understand and take precaution.

Seniors: - Please add your valuable suggestions and correct me if I had missed any major point.

Thx for the reply. I really appreciate it. To be frank. I have touched the 60-70kmph speed with this new engine once when I was travelling on highway and I didn't know anything, but now I think the bike is little better now after 200kms. Also regarding the smoke you said, I am not getting any smoke and I am premixing oil with petrol directly.

^^ not able to understand your message.. Are you saying the problem is solved?

Touching 60-70kmph, is not advisable during running period.

You were not able to see smoke? Then something is wrong, better check if the 2t oil premixed is optimum. As everyone in this forum would agree that bike should smoke atleast to an extent, and your muffler end should show signs of oil on the outer.

No what I said was the acceleration is sometimes Ok after 200kms as I get quick response from the new engine. But many times I don't get the sudden pickup as a rx135.

Regarding the smoke. I was not their when the bike was rebored. My dad took care of it as the mechanic is my dad's friend. My dad told that the mechanic after reboring started the engine and allowed it run for quite some time for the rings to take seating positon. I don't know whether it smoked during this time. But now I am not getting any smoke from my bike

I thought you said it is new bore + piston? Now I read your post saying it is re-bored?

We reply to the issue based on what has been posted, unless you come up with accurate information, you might not get proper solution or guidance and it would be just a waste of time.

Also, not sure if you had posted your intro in 'Who are you' section of this forum. If not yet, kindly do so.

I mean I was not in my native when the reboring was done. Later I went to pick the rebored bike and Yes the reboring was done properly and no issues with that. But My main concern is the power and raw pickup which is missing.

May be as everyone is saying that I need to wait till some kms are done to get the pickup

@Jamesrocky...........you told you have rebored the engine.......Did you increase the bore ??? I mean is your RX135 still the 135cc ???? is it stock bore or larger ???

What are your carb settings??? did you port??? (To optimise bigger bores,I am always in favour of bigger ports)

Whatever be the case......dont high rev your new engine now ..........pls,you may lose all your hard work and money invested,let the bike run free on its will.If its comfortable at 40kmph,let it be........if its comfortable at 75kmph let it be.Dont let any stress on the bike right now,200km is not enough for a new engine.........start going all out after 1000kms atleast.

One more thing.........dont always drive constantly at one speed,try to vary the speed according to the road,dont ride in a single gear for longer time...........engine would come to its element slowly.

Once near 900kms on new engine.......just speed to its maximum per gear.....I mean something like this:
1st gear........attain 40kmph or the maximum attainable speed with normal clutch release,(dont dump clutch in this run,you are not gonna wheelie or drag) without stressing the engine(minimize revs at redline).
2nd gear........attain 60-65 kmph or the maximum attainable speed with normal clutch release,without stressing the engine(minimize revs at redline).
3rd gear.........attain 85-90kmph or the maximum attainable speed with normal clutch release,without stressing the engine(minimize revs at redline).
4th gear.........attain the top speed attainable with normal clutch release(minimize revs at redline).

Then you see your engine would be on its own.You wont feel to complain about performance.The parts harden without stress and then needs to be tempered with mild stress.Hope this helps.

@ MACH50 thx for the detailed info. My Rx is still a 135 cc and it is a stock bore. No Modifications. Sorry I don't know about the carb settings and No porting stuff. The bike got new stock bore and it replaced the old bore

ok then simply follow the run-in as I said.
congrats on the rebuild

Thx, sure I will wait till I do 1000kms and do as you said . Let me see how it performs after that