comet problem

holowprotoplasm · 4th October 2006, 14:22

hi guys,
i am located in mumbai.i own a comet. and for the past few days am facing a problem.my comet doesnt go beyond 80 km/hr. i always had
serviced regularly. i also gave it for servicing now still it doesnt help.
plz guys from mum help me out.

manson · 4th October 2006, 18:13

what about the rpm needle? does that go all the way or does that get stuck mid-way as well?

manson.

Rtech · 4th October 2006, 18:17

You need to be more specific of the symptoms. What do you mean by "only reached 80"? Does it start stuttering after that? Does it idle smoothly? Give us some more details if you want us to try and help.

holowprotoplasm · 4th October 2006, 21:24

hi ,
ok, now to be more specific, at full throtle the rpm is stuck at 8 while
the speed is only 80km/hr.i even hear some stuttering wen i try to pull the bike above 40km/hr in the 1st,2nd and 3rd gears. wen i accelerate the bike in neutral she grumps a lot and also the clutch seems to be very hard
if possible plz help. thanks a zillion in advance.

samybravo · 4th October 2006, 21:44

hay dude the problemz on one of ur cylinders check out both the cylinders itz workin or not????

pdev29 · 4th October 2006, 21:45

dude i think its time to change your clutch plate.

veyron1 · 5th October 2006, 00:39

First, go to a reputed mech. Check the compression on both cylinders with a compression gauge. Tune the carb. Clean the air filter. Check the plugs. Set the clutch. Then check it out again. From the sound of it, you might have a fried clutch, but just make sure before opening up the internals. There could be other factors as well, since the Comet revs upto 9K in first 3 gears easy.

How many kms have you run total? Is the bike still under warranty?

Rtech · 5th October 2006, 09:53

Quote:

wen i accelerate the bike in neutral she grumps a lot

This rules out the possibility of a clutch problem (though I have no idea what you mean by "grumps").

The hard clutch could just be a case of lubing the clutch cable.

Quote:

at full throtle the rpm is stuck at 8 while

Quote:

i even hear some stuttering wen i try to pull the bike above 40km/hr in the 1st,2nd and 3rd gears.

The idea is to first check and rule out the most obvious things
1: Air filter. Take it out and check if it is clogged. I had an incident once where a plastic bag was sucked into the airbox causing the bike to die out at higher rpm's.

If the air filter is clean and not obstructed, then move to step 2 which is, as samybravo said, most likely that one of your cylinders is not firing. take out the plug from one cylinder, hold it to a metal surface (cylinder head) and press the starter button. You should see a decent spark. Repeat this for the 2nd cyl. as well.

- first alternate the plugs from the 2 cylinders and try again.
if you still have no spark, then the problem could be anywhere from the plug cap all the way upto the coil. In this case, if you know where everything is located, do a visual check to see that all wires etc are all in place and nothing is loose. If that checks out OK, its best you take it to the Kinetic guys.

Keep us updated.

holowprotoplasm · 5th October 2006, 11:35

hey guys,
thanks a million again for all ur help and suggestions. have tried most of the steps wich u guys said, bt will try one more time step by step as rtech said. bt if anymore suggestions, guys plz lemme know.
thanks again

veyron1 · 5th October 2006, 14:29

@Rtech: Erm...how can one find out if the clutch is fried by revving in neutral?

Rtech · 5th October 2006, 14:55

Veyron, what I said was that as he is facing the same problem even when he is in neutral, it probably rules out a clutch issue. If the engine was revving fine in neutral, then yes, it could be the clutch.

black12rr · 5th October 2006, 16:15

I have a friend who has a comet and a clogged carb can ruin ur entire week or mood .Does your bike spew exhuaust gases like a desiel car ? then the carb is clogged .also check the fuel line ,it might have been blocked .

black12rr · 5th October 2006, 17:03

If you dont know what you are doing ,dont even try to touch the carb ,not even try .
Take it a experienced person and offcourse not the kinetic mechs ..you know that right .

holowprotoplasm · 5th October 2006, 20:04

hi,
no black12rr, the bike doesnt emit any smoke nor does it makes any sound wen normal. its only wen i give her some acceleration tht she seems to make some sound which sounds wierd and looks as if someone is forcing her to make tht sound. i lubed the clutch plate and the cable today. lets see wht happens, 2marow i wiil clean and tune the carb wid the help of an experiecd mech as the carb is a buttterfly carb and its very tough to get the settings in the right place.

4th October 2006, 14:22	#1
holowprotoplasm Newbie Join Date: Oct 2006 Location: MUMBAI Posts: 14 Thanked: 0 Times	hi guys, i am located in mumbai.i own a comet. and for the past few days am facing a problem.my comet doesnt go beyond 80 km/hr. i always had serviced regularly. i also gave it for servicing now still it doesnt help. plz guys from mum help me out.
	() Thanks

4th October 2006, 18:13	#2
manson Team-BHP Support Join Date: Oct 2004 Location: Bombay Posts: 3,934 Thanked: 4,169 Times View My Garage	what about the rpm needle? does that go all the way or does that get stuck mid-way as well? manson.
	() Thanks

4th October 2006, 18:17	#3
Rtech Team-BHP Support Join Date: Apr 2004 Location: Bombay Posts: 5,770 Thanked: 359 Times View My Garage	You need to be more specific of the symptoms. What do you mean by "only reached 80"? Does it start stuttering after that? Does it idle smoothly? Give us some more details if you want us to try and help.
	() Thanks

4th October 2006, 21:24	#4
holowprotoplasm Newbie Join Date: Oct 2006 Location: MUMBAI Posts: 14 Thanked: 0 Times	hi , ok, now to be more specific, at full throtle the rpm is stuck at 8 while the speed is only 80km/hr.i even hear some stuttering wen i try to pull the bike above 40km/hr in the 1st,2nd and 3rd gears. wen i accelerate the bike in neutral she grumps a lot and also the clutch seems to be very hard if possible plz help. thanks a zillion in advance.
	() Thanks

4th October 2006, 21:44	#5
samybravo BHPian Join Date: Feb 2006 Location: Madurai Posts: 121 Thanked: 2 Times	problem on cylinder hay dude the problemz on one of ur cylinders check out both the cylinders itz workin or not????
	() Thanks

4th October 2006, 21:45	#6
pdev29 Senior - BHPian Join Date: Feb 2006 Location: Mumbai Posts: 1,039 Thanked: 288 Times View My Garage	dude i think its time to change your clutch plate.
	() Thanks

5th October 2006, 00:39	#7
veyron1 Senior - BHPian Join Date: Mar 2005 Location: Mumbai Posts: 1,424 Thanked: 52 Times View My Garage	First, go to a reputed mech. Check the compression on both cylinders with a compression gauge. Tune the carb. Clean the air filter. Check the plugs. Set the clutch. Then check it out again. From the sound of it, you might have a fried clutch, but just make sure before opening up the internals. There could be other factors as well, since the Comet revs upto 9K in first 3 gears easy. How many kms have you run total? Is the bike still under warranty?
	() Thanks

5th October 2006, 11:35	#9
holowprotoplasm Newbie Join Date: Oct 2006 Location: MUMBAI Posts: 14 Thanked: 0 Times	hey guys, thanks a million again for all ur help and suggestions. have tried most of the steps wich u guys said, bt will try one more time step by step as rtech said. bt if anymore suggestions, guys plz lemme know. thanks again
	() Thanks

5th October 2006, 14:29	#10
veyron1 Senior - BHPian Join Date: Mar 2005 Location: Mumbai Posts: 1,424 Thanked: 52 Times View My Garage	@Rtech: Erm...how can one find out if the clutch is fried by revving in neutral?
	() Thanks

5th October 2006, 14:55	#11
Rtech Team-BHP Support Join Date: Apr 2004 Location: Bombay Posts: 5,770 Thanked: 359 Times View My Garage	Veyron, what I said was that as he is facing the same problem even when he is in neutral, it probably rules out a clutch issue. If the engine was revving fine in neutral, then yes, it could be the clutch.
	() Thanks

5th October 2006, 16:15	#12
black12rr Senior - BHPian Join Date: Dec 2005 Location: Ridin earth now Posts: 1,278 Thanked: 339 Times	I have a friend who has a comet and a clogged carb can ruin ur entire week or mood .Does your bike spew exhuaust gases like a desiel car ? then the carb is clogged .also check the fuel line ,it might have been blocked .
	() Thanks

5th October 2006, 17:03	#13
black12rr Senior - BHPian Join Date: Dec 2005 Location: Ridin earth now Posts: 1,278 Thanked: 339 Times	If you dont know what you are doing ,dont even try to touch the carb ,not even try . Take it a experienced person and offcourse not the kinetic mechs ..you know that right .
	() Thanks

5th October 2006, 20:04	#14
holowprotoplasm Newbie Join Date: Oct 2006 Location: MUMBAI Posts: 14 Thanked: 0 Times	hi, no black12rr, the bike doesnt emit any smoke nor does it makes any sound wen normal. its only wen i give her some acceleration tht she seems to make some sound which sounds wierd and looks as if someone is forcing her to make tht sound. i lubed the clutch plate and the cable today. lets see wht happens, 2marow i wiil clean and tune the carb wid the help of an experiecd mech as the carb is a buttterfly carb and its very tough to get the settings in the right place.
	() Thanks