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**nox2505** · 07-15-2009, 10:21 PM

Originally posted by Puneet1 View Post

why dont you try to guess ?

Ps - its a car's

Thats mazda RX8's

**sam92** · 07-16-2009, 12:05 AM

Originally posted by nox2505 View Post

The SVC nearby is 50kms from my home and there is only one MECHANIC, who tightens the plastic handlebar cover with help of 2 feet long pipe, sets chain slackness to 0-5mm. Imagine how idiot he is. Better i will reopen and assemble the carb again.

And secondly, when it got red hot, i was running only outer air filter, and fuel volume screw lower than 3 turns, as i was adjusting it. now at about 3 and half turns, its seeming to be normal.

Though, its normal now, lets see after 2 days of under observation.

guys today i was adjusting the air volume screw and found out a way for a ideal setup ..
what i did was ..
turned on the engine and kept a keen eye on the RPM meter while adusting the screw ..at a particular point[turn] the RPM will be more than the rest of the turns ..i guess thats the best setup ..

correct me if i am wrong

**MR ACE** · 07-16-2009, 12:15 AM

Originally posted by Puneet1 View Post

why dont you try to guess ?

Ps - its a car's

Originally posted by nox2505 View Post

Thats mazda RX8's

Very rarely to car's side

**rennycornelius** · 07-16-2009, 09:14 AM

Originally posted by nox2505 View Post

And secondly, when it got red hot, i was running only outer air filter, and fuel volume screw lower than 3 turns, as i was adjusting it. now at about 3 and half turns, its seeming to be normal.

man you're running "super rich"....

the ideal setting for RTR is between 4.15-4.30, and this is too in the rich area....

Originally posted by sam92 View Post

turned on the engine and kept a keen eye on the RPM meter while adusting the screw ..at a particular point[turn] the RPM will be more than the rest of the turns ..i guess thats the best setup ..

this is the best way to tune a 2 and 4 stroke

make it about 1/4 more loose after you'll get tht instant rush of RPM (indicating you reached the optimum setting)..
how much turns you opened????????
cuz the RTR's ideal setting falls at 4.15-4.30 screws after fully tightin it....

JOEL SIR, correct me if i'm wrong in this.....

**nox2505** · 07-16-2009, 03:15 PM

Originally posted by sam92 View Post

guys today i was adjusting the air volume screw and found out a way for a ideal setup ..
what i did was ..
turned on the engine and kept a keen eye on the RPM meter while adusting the screw ..at a particular point[turn] the RPM will be more than the rest of the turns ..i guess thats the best setup ..

correct me if i am wrong

I do it same way but yesterday, i was getting that sudden rush after about 7 turns

, which we get in normal bike also, but its super rich because after quickly twisting throttle and releasing, engine retards slowly. when i bought bike, the stock setting was 3 turns

.

today i reopened and cleaned the carb again, now i got the regular rpm rush at 3.45 turns

. yesterday, i was not getting it, so i set it on 3.5 turns randomly. after setting it at 3.45 turns today, i tried running engine at 6k+ rpms for 2-3 mins. the header got very slight red hot, seeming to be normal, considering no floing air and high humidity. i will try resetting carb after an hour and will post the result.

@renny, i must be running lean, cos in rtr carb, loosening is richer and tightening is leaner, is it correct joel?

**sam92** · 07-16-2009, 03:49 PM

Originally posted by rennycornelius View Post

man you're running "super rich"....

the ideal setting for RTR is between 4.15-4.30, and this is too in the rich area....

this is the best way to tune a 2 and 4 stroke

make it about 1/4 more loose after you'll get tht instant rush of RPM (indicating you reached the optimum setting)..
how much turns you opened????????
cuz the RTR's ideal setting falls at 4.15-4.30 screws after fully tightin it....

JOEL SIR, correct me if i'm wrong in this.....

phew ..

well i havent check the turns ,,,i was happy that the engine was responding good .. il check it today ..

**rennycornelius** · 07-16-2009, 05:36 PM

Originally posted by nox2505 View Post

I do it same way but yesterday, i was getting that sudden rush after about 7 turns

, which we get in normal bike also, but its super rich because after quickly twisting throttle and releasing, engine retards slowly. when i bought bike, the stock setting was 3 turns

.

today i reopened and cleaned the carb again, now i got the regular rpm rush at 3.45 turns

. yesterday, i was not getting it, so i set it on 3.5 turns randomly. after setting it at 3.45 turns today, i tried running engine at 6k+ rpms for 2-3 mins. the header got very slight red hot, seeming to be normal, considering no floing air and high humidity. i will try resetting carb after an hour and will post the result.

@renny, i must be running lean, cos in rtr carb, loosening is richer and tightening is leaner, is it correct joel?

sorry.....
tht was typo...
3 is lean....

7 turns is goddmn RICH...ur slow jet was blocked man for sure....
may be i'm wrong in proper "turns" setting department too but if you got tht rush at 3.45 thn 4.00 is the perfect setting(.15 on the rich side)...

yes you're right loosening is rich and tighting is lean....

Originally posted by sam92 View Post

phew ..

well i havent check the turns ,,,i was happy that the engine was responding good .. i check it today ..

plz post exactly at how must turns tht RPM boosted.....

**nox2505** · 07-16-2009, 06:07 PM

i setteled with 3.75 turns, the rpm started rising from near to 3.25 turns, and kept increasing upto 3.5 something. its damn smooth now. engine rpm changes with throttle input, retards quick, vibes are way low. no pahtaak phataak sound while decline. i speeded at abt 60 in 3rd for 2-3 minutes on matheran ghat(incline). then kept engine revved to 8k-9k for 2-3 mins. then the exhaust header got slightly red hot, but it was negligible. i have seen many RTRs with brown or dusty coloured(due to burnt paint i think) exhaust header, which means its normal. we may not be able to see it in run because of air cooling. this red hot exhaust may not be visible in other bikes due to plating.

**ashwinBK** · 07-16-2009, 07:03 PM

Guys how much do these parts cost?

Apache 150 handlebar
RTR Refresh chain-sprocket set (about 750 I think for this one, correct if wrong)
RTR clutch assembly
RTR Refresh chain cover
Apache 150 disc brake pads

**rennycornelius** · 07-16-2009, 07:32 PM

Originally posted by nox2505 View Post

i setteled with 3.75 turns, the rpm started rising from near to 3.25 turns, and kept increasing upto 3.5 something. its damn smooth now. engine rpm changes with throttle input, retards quick, vibes are way low. no pahtaak phataak sound while decline. i speeded at abt 60 in 3rd for 2-3 minutes on matheran ghat(incline). then kept engine revved to 8k-9k for 2-3 mins. then the exhaust header got slightly red hot, but it was negligible. i have seen many RTRs with brown or dusty coloured(due to burnt paint i think) exhaust header, which means its normal. we may not be able to see it in run because of air cooling. this red hot exhaust may not be visible in other bikes due to plating.

so 3.75 it is....
good you made it .50 rich...
but still tht red hot thing is beyond my understanding...

experts any comments on this?????

Originally posted by ashwinBK View Post

Guys how much do these parts cost?

Apache 150 handlebar
RTR Refresh chain-sprocket set (about 750 I think for this one, correct if wrong)
RTR clutch assembly
RTR Refresh chain cover
Apache 150 disc brake pads

dude go to the showroom and get the prices.....

**sam92** · 07-17-2009, 12:08 AM

Originally posted by rennycornelius View Post

so 3.75 it is....
good you made it .50 rich...
but still tht red hot thing is beyond my understanding...

experts any comments on this?????

dude go to the showroom and get the prices.....

what the F***

i had to lose it about 11.5 turns !!!!!! before it started revving more than the rest of it
i completely tightened it up then started to make lose ..

**julianpaul** · 07-17-2009, 08:13 AM

Originally posted by sam92 View Post

i had to lose it about 11.5 turns

one turn=360 degrees. you're counting every 180 deg or half-turn.

and the number of turns WILL vary from carb/bike to carb/bike. Many reasons like state of tune, engine/clutch condition, sometimes the threads of the screws/carb body are worn, and it could even be dirt or other obstructions in the jets.

here's a pretty simple guide to setting your carb, also called the idle drop procedure in other parts.

The idle drop method of adjusting the CV carb idle mixture - The Sportster and Buell Motorcycle Forum

edit: the site has a pretty detailed discussion on carb tuning and plugs; i do not know about the correctness of the statements made further on, just that the first post is a decent rough guide to setting idle properly.

edit2: the thread is about a harley sportster so don't bother with exact figures. just the method.

**nox2505** · 07-17-2009, 08:24 AM

Originally posted by sam92 View Post

what the F***

i had to lose it about 11.5 turns !!!!!! before it started revving more than the rest of it
i completely tightened it up then started to make lose ..

Get the carb sump and jets cleaned and vaccum bubble of round slide also. and then set it. with ur current settings, twist the throttle full and release if engine retards slowly, u r running very rich, with which spark plug would become black.

**rennycornelius** · 07-17-2009, 09:10 AM

Originally posted by sam92 View Post

what the F***

i had to lose it about 11.5 turns !!!!!! before it started revving more than the rest of it
i completely tightened it up then started to make lose ..

11.5 is hell of too much in any case!!!!!!!!!!!!!!
get ur jets cleaned bro....

**nox2505** · 07-17-2009, 04:07 PM

can anyone explain how to check round slide is working or not?

when i had removed the carb, i blocked intake side and sucked air from engine side. it lifted up. is thr any other mathod to check with engine?

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