1996 XR650L valve problems

sonoradirt · 08-11-2012, 05:42 PM

Well hello everyone, First off Im having problems lining up the TDC mark "T" with the little hash mark in the inspection hole. I can get it to line up with the F mark but when I turn it CCW a little more it will "jump" past T and I can stop it. I have seen other people do valves and their rotor is smooth and doesn't "jump". Very frustrating. I just bought this bike knowing that it had problems but it is in great shape cosmetically and has very low miles, only 4000 miles. The PO said that he had the valves adjusted by a friend and then the problems started. He thought it might have skipped the timing chain on the sprocket. Why cant I line the T mark up? Im near it but halfway past the F mark to the T mark it kinda jumps past it. Thanks in advance

ThumpnRed · 08-11-2012, 05:48 PM

Did you pull the spark plug out?

sonoradirt · 08-11-2012, 05:55 PM

yes i did

elsalvadorklr · 08-11-2012, 06:45 PM

Quote:

Originally Posted by sonoradirt

Well hello everyone, First off Im having problems lining up the TDC mark "T" with the little hash mark in the inspection hole. I can get it to line up with the F mark but when I turn it CCW a little more it will "jump" past T and I can stop it. I have seen other people do valves and their rotor is smooth and doesn't "jump". Very frustrating. I just bought this bike knowing that it had problems but it is in great shape cosmetically and has very low miles, only 4000 miles. The PO said that he had the valves adjusted by a friend and then the problems started. He thought it might have skipped the timing chain on the sprocket. Why cant I line the T mark up? Im near it but halfway past the F mark to the T mark it kinda jumps past it. Thanks in advance

this is normal man

all you do when you take out the plug is not fight against compression

some tricks you can use to line up and not have the rotor/flywheel move are:

1. put bike in a high gear on a stand, then using the wheel you can rotate the engine to your desired mark. then just keep the chain taight and your good

2. use a long socket wrench on the rotor bolt and then tape the socket in position when the t is at the mark

there are others but these are the easiest for me

cheers

sonoradirt · 08-11-2012, 06:52 PM

I will try those out. Thanks alot

mcma111 · 08-11-2012, 07:21 PM

Anywhere between the F and T is fine for adjusting the valves. Being a few degrees of is nothing to worry about. All you want to do is be on the heel of the cam lobe.

Beezer · 08-11-2012, 07:21 PM

I just put the bike in 1st gear & roll it until I see what I want... usually just takes a bump either way

sonoradirt · 08-11-2012, 08:26 PM

ok I tried just about everything and the lobes are down at the F mark. I cant get to the T mark without it jumping past but I will just try to adjust the valves where it is. the cam sprocket looks like its where it should be, almost level with the mating surface, a little off but its not all the way to the T mark so it looks good. Im worried that the cam chain skipped down below but Im not sure how to check. that is without pulling off the right side cover. Im just going to put it back together and adjust the valves.

murgatroid42 · 08-11-2012, 10:29 PM

Are you using a ratchet on the crank bolt? Instead, use a long breaker bar with a socket and hold it tightly when you get close to the correct mark. The socket won't turn on the breaker bar, so one should be able to turn the crank to the correct position.

sonoradirt · 08-12-2012, 04:47 PM

I ended up getting it close and adjusting the valves but there is something else wrong with the motor. You can hear clunking of metal when you try to start it. Somewhere below the valves like the piston maybe. Off to the stealership it goes.

kirbi69 · 08-12-2012, 05:46 PM

take it apart youtself!!! its easy i just took mine apart the other dayfor the first time
i was nervous but with some patience. a manual, and this website i fixed it like new. runs great no!!!!!

mcma111 · 08-12-2012, 05:49 PM

I'm kinda close. Pull the motor and bring or send it to me.

And I'm hell of a lot cheaper than the stealership.

sonoradirt · 08-12-2012, 06:23 PM

Quote:

Originally Posted by mcma111

I'm kinda close. Pull the motor and bring or send it to me.

And I'm hell of a lot cheaper than the stealership.

When are you available Steve? I can drop it of in a week or so and pick it up after the first if that's alright. Where in SF are you located?

mcma111 · 08-12-2012, 08:15 PM

PM sent

kirbi69 · 08-12-2012, 08:38 PM

awww steve you could of have at least encouraged him to do it himself first.... but then again, there is no telling whats wrong with his motor.... i think he just conned you into fixing it for him for cheap :p

08-11-2012, 05:42 PM	#1
sonoradirt ^OP Adventurer Joined: Aug 2012 Location: Sonora CA Oddometer: 12	1996 XR650L valve problems Well hello everyone, First off Im having problems lining up the TDC mark "T" with the little hash mark in the inspection hole. I can get it to line up with the F mark but when I turn it CCW a little more it will "jump" past T and I can stop it. I have seen other people do valves and their rotor is smooth and doesn't "jump". Very frustrating. I just bought this bike knowing that it had problems but it is in great shape cosmetically and has very low miles, only 4000 miles. The PO said that he had the valves adjusted by a friend and then the problems started. He thought it might have skipped the timing chain on the sprocket. Why cant I line the T mark up? Im near it but halfway past the F mark to the T mark it kinda jumps past it. Thanks in advance

08-11-2012, 07:21 PM	#6
mcma111 Beastly Adventurer Joined: Jul 2007 Location: San Francisco,Ca. Oddometer: 8,011	Anywhere between the F and T is fine for adjusting the valves. Being a few degrees of is nothing to worry about. All you want to do is be on the heel of the cam lobe. __________________ Steve in SF BMW's 58 R26 79 R100s 91 R100gs 87 Harley FXRS-SP ~ 06 KTM 625 SMC ~ 72 Honda CB750/915cc ~ 92 XR600/654cc ~ 95 XR650l/675cc ~ 03 CRF450r ~ 05 CRF450x ~ 02 XR650l/675cc ~ 86 YZ490 ~ 93 YZ80 ~ 93 XR650l Project

08-11-2012, 10:29 PM	#9
murgatroid42 Great Adventurer Joined: Aug 2003 Location: Ft. Collins, CO Oddometer: 4,160	Are you using a ratchet on the crank bolt? Instead, use a long breaker bar with a socket and hold it tightly when you get close to the correct mark. The socket won't turn on the breaker bar, so one should be able to turn the crank to the correct position. __________________ "We hang around people who think these activities are normal." "Me and gravity, we are really, really good friends." - Streetbike Tommy, Nitro Circus "I'm a dude in his mid-40s, who acts likes he's in his 20's. But I don't plan on stopping any time soon." - Ken Block

08-12-2012, 04:47 PM	#10
sonoradirt ^OP Adventurer Joined: Aug 2012 Location: Sonora CA Oddometer: 12	I ended up getting it close and adjusting the valves but there is something else wrong with the motor. You can hear clunking of metal when you try to start it. Somewhere below the valves like the piston maybe. Off to the stealership it goes. __________________ Only a Biker knows why a dog sticks his head out of a car window...........If the countryside seems boring, stop, get off your bike, and go sit in the ditch long enough to appreciate what was here before the asphalt came.

08-12-2012, 05:46 PM	#11
kirbi69 Gnarly Adventurer Joined: Mar 2012 Location: Aransas Pass, Texas ( near Corpus) Oddometer: 194	take it apart youtself!!! its easy i just took mine apart the other dayfor the first time i was nervous but with some patience. a manual, and this website i fixed it like new. runs great no!!!!! __________________ 1994 XR600R dual sport

08-11-2012, 05:55 PM	#3
sonoradirt ^OP Adventurer Joined: Aug 2012 Location: Sonora CA Oddometer: 12	yes i did

08-11-2012, 06:52 PM	#5
sonoradirt ^OP Adventurer Joined: Aug 2012 Location: Sonora CA Oddometer: 12	I will try those out. Thanks alot

08-11-2012, 07:21 PM	#7
Beezer Beastly Adventurer Joined: Oct 2004 Location: Anchorage, formerly Spenard (hub of the universe) Oddometer: 4,440	I just put the bike in 1st gear & roll it until I see what I want... usually just takes a bump either way

08-11-2012, 08:26 PM	#8
sonoradirt ^OP Adventurer Joined: Aug 2012 Location: Sonora CA Oddometer: 12	ok I tried just about everything and the lobes are down at the F mark. I cant get to the T mark without it jumping past but I will just try to adjust the valves where it is. the cam sprocket looks like its where it should be, almost level with the mating surface, a little off but its not all the way to the T mark so it looks good. Im worried that the cam chain skipped down below but Im not sure how to check. that is without pulling off the right side cover. Im just going to put it back together and adjust the valves.

08-12-2012, 05:49 PM	#12
mcma111 Beastly Adventurer Joined: Jul 2007 Location: San Francisco,Ca. Oddometer: 8,011	I'm kinda close. Pull the motor and bring or send it to me. And I'm hell of a lot cheaper than the stealership. __________________ Steve in SF BMW's 58 R26 79 R100s 91 R100gs 87 Harley FXRS-SP ~ 06 KTM 625 SMC ~ 72 Honda CB750/915cc ~ 92 XR600/654cc ~ 95 XR650l/675cc ~ 03 CRF450r ~ 05 CRF450x ~ 02 XR650l/675cc ~ 86 YZ490 ~ 93 YZ80 ~ 93 XR650l Project

08-12-2012, 08:15 PM	#14
mcma111 Beastly Adventurer Joined: Jul 2007 Location: San Francisco,Ca. Oddometer: 8,011	PM sent __________________ Steve in SF BMW's 58 R26 79 R100s 91 R100gs 87 Harley FXRS-SP ~ 06 KTM 625 SMC ~ 72 Honda CB750/915cc ~ 92 XR600/654cc ~ 95 XR650l/675cc ~ 03 CRF450r ~ 05 CRF450x ~ 02 XR650l/675cc ~ 86 YZ490 ~ 93 YZ80 ~ 93 XR650l Project

08-12-2012, 08:38 PM	#15
kirbi69 Gnarly Adventurer Joined: Mar 2012 Location: Aransas Pass, Texas ( near Corpus) Oddometer: 194	awww steve you could of have at least encouraged him to do it himself first.... but then again, there is no telling whats wrong with his motor.... i think he just conned you into fixing it for him for cheap :p __________________ 1994 XR600R dual sport

Thread Tools	Search this Thread
Show Printable Version Email this Page	Search this Thread: .
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode