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Old 07-29-2013, 01:21 PM   #8416
RFVC600R
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Location: SAND LAND
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Gah crap.

So do I have disassemble again to in the pocket? I don't think I got it in
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'83 Honda XL600R 618cc 11:1 Wiseco, XR's Only Exhaust, big tube header, 6 Sigma stage 3 carb mods

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He's the XL600 Jesus, his bike dies for our sins.
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Old 07-29-2013, 01:28 PM   #8417
davek181
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Originally Posted by mcma111 View Post
Tools will never be obsolete. Their owners will be some day but someone will always be able to use them.

I can't even remember the last time I used my Snap-on dwell meter or our Sun 1015 oscilloscope. Even our Fluke scopemeters see very limited usage. I can remember the days when all three were used several times daily, especially the Fluke.
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Old 07-29-2013, 01:31 PM   #8418
davek181
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Quote:
Originally Posted by RFVC600R View Post
Gah crap.

So do I have disassemble again to in the pocket? I don't think I got it in
You can pop off the clutch cover and visually inspect the lower part of the chain and guides to be sure.
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Old 07-29-2013, 01:32 PM   #8419
mcma111
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Quote:
Originally Posted by RFVC600R View Post
Gah crap.

So do I have disassemble again to in the pocket? I don't think I got it in
Better safe than sorry.
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Old 07-29-2013, 01:34 PM   #8420
RFVC600R
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Gah I wish I had money, I'm no mechanic

Imma try again tonight, it's too hot to be in the garage right now.
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'83 Honda XL600R 618cc 11:1 Wiseco, XR's Only Exhaust, big tube header, 6 Sigma stage 3 carb mods

Quote:
Originally Posted by Carter Pewterschmidt View Post
He's the XL600 Jesus, his bike dies for our sins.
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Old 07-29-2013, 01:39 PM   #8421
mcma111
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Quote:
Originally Posted by RFVC600R View Post
Gah I wish I had money, I'm no mechanic
Hopefully by the time it's all said and done with your motor you will have learned something.

What, I don't know...






























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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
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Old 07-29-2013, 02:29 PM   #8422
RFVC600R
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I can do it and have been learning alot. It's just bonding with the bike I can do regular maintenance type and replacing wear items no problem but taking the engine apart and back together, bleh! I'm sure it will be easier next time. Only spent about $250 for everything so far, alot cheaper than getting everything done the way I would have liked but this is only a temporary fix till i can afford get the original head repaired. It has been 'fun' but I'd rather be riding the old bike.

Thanks alot for your help MCMA111 and Davek181
I definitely learned four things.

1. don't get a 30yo bike on credit
2. I Learned how to use various tools to do maintenance on the bike.
3. Piston rings are sharp
4. Oil the damn bolts
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'83 Honda XL600R 618cc 11:1 Wiseco, XR's Only Exhaust, big tube header, 6 Sigma stage 3 carb mods

Quote:
Originally Posted by Carter Pewterschmidt View Post
He's the XL600 Jesus, his bike dies for our sins.

RFVC600R screwed with this post 07-29-2013 at 02:37 PM
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Old 07-29-2013, 03:51 PM   #8423
crobox
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RFVC600R, are you still struggling with the camchain tensioner?

I came up with a very good way to deal with it last time I had my engine apart. It would take a little remembering, and jogging the memory with a picture of a tensioner, to remember how I did it. But if you are stuck there, I will try.

CR
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Old 07-29-2013, 09:56 PM   #8424
Reposado1800
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I was bored today and pulled my engine to replace the timing chain. Put the valve cover on and 2 of the 6mm threaded holes took a crap. Anybody know if it is a standard 6mm by 10mm helicoil for those little screws?
The cam timing is going to be different with the new Pro-X chain. Slashes are lined up just a hair before T1 and the old chain was lining up at F1. I took a look at where F1 would be with the new chain and it is quite a bit different than the old one. I should have done this when I did the head.
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Old 07-30-2013, 04:28 AM   #8425
mcma111
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Those rocker cover bolts are 6 x 1.0 mm

You want to set the cam timing to the T mark on the stator NOT the F
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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
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Old 07-30-2013, 06:08 AM   #8426
Reposado1800
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Quote:
Originally Posted by mcma111 View Post
Those rocker cover bolts are 6 x 1.0 mm

You want to set the cam timing to the T mark on the stator NOT the F
How long is the thread in those holes?

Will a standard 10 mm length helicoil work or do the need to be longer?
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Old 07-30-2013, 06:34 AM   #8427
davek181
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Originally Posted by Reposado1800 View Post
How long is the thread in those holes?

Will a standard 10 mm length helicoil work or do the need to be longer?
I just checked a spare head I have laying around. The shallowest rocker cover holes were 19mm. You could easily put in a coil of 15mm without a bottoming tap, if you can find one.

10mm will work if you are careful since the threads are now steel. Cleanliness of thread and tap and straightness of process is very important. I use the drill press for a tap holder, operated manually of course.

On 6mm holes I prefer Timesert inserts usually, they seem to hold a little better. I put a drop of red loctite on them also for good measure, but only if you have time to let it sit and cure out and run a tap through the hole and spray cleaner rinse. If you have to assemble it all at once you will glue the whole thing together, not recommended.
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Old 07-30-2013, 08:06 AM   #8428
Aaron from Texas
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Well, I pulled the carbs... again....



I put the new diaphram back in, with proper o-ring, and have the air cut-off running like stock. I then cleaned all the jets and everything again, drilled out the seized screw on the throttle stop bracket and replaced it using anti-seize, and threw the carbs back on.

The vacuum hole for the air cut-off just goes through to the throttle body of the carburetor on the engine side, correct? There are no other passages? When I had it apart, I made damn sure that line was clean as a whistle, but couldn't see if there was any other corridor that intersected it...

I can find no leaks anywhere, exhaust or intake... and I seem to still be getting the occasional decel pop. It's not the loud, afterburn "POP!", but more of the occasional "putt-putt...putt" on decel. Sound good? I can take a video if it would help.

I'm running stock on Pilot (which I believe is #62) and #120 Primary and #118 Secondary with 2.5 turns on the Pilot Screw.

My idle seems to be working like it should. It only increases slightly as the engine warms up... I guess this is normal?
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Old 07-30-2013, 08:13 AM   #8429
mcma111
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Stick a fork in it. Your DONE!
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BMW's
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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
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Old 07-30-2013, 09:46 AM   #8430
davek181
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Occasional decel pop is normal. I am glad you decided to fix it right, rather than eliminate the system altogether.

The dual carbs work well when everything is right.
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