1999 650. Only firing one plug

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jeffsaline
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Re: 1999 650. Only firing one plug

Post by jeffsaline » Sun Jun 16, 2019 9:33 am

You can make studs if you are willing to use a hacksaw, file and thread cutting dies. Pick a good piece of metal to start with, maybe Stressproof 1144.

Best,

Jeff
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Re: 1999 650. Only firing one plug

Post by Adelphia » Wed Jun 19, 2019 10:57 am

jeffsaline wrote:
Sun Jun 16, 2019 9:33 am
You can make studs if you are willing to use a hacksaw, file and thread cutting dies. Pick a good piece of metal to start with, maybe Stressproof 1144.

Best,

Jeff
Always an option. Even better if the threads are still good in the case when I take the old studs out. Then I can shop around for that pitch.

In other news, the parts were released from Customs in Moscow this morning. Being in Philly, mail seems to make only 1 stop in Europe and then to NYC before it gets to me. Good stuff.
Dustin
2019 Yamaha Bolt R-Spec - 1999 Tourist 650 - 1980 Honda CM200T

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Re: 1999 650. Only firing one plug

Post by jeffsaline » Thu Jun 20, 2019 9:06 am

Put a little penetrating fluid like Kroil on the studs now and let it soak for a day before you try to remove them. It doesn't hurt to tap the end of the stud with a hammer a couple of times too which can sometimes help the penetrating fluid move deeper. If you want to make your own try a 50/50 mix of acetone and automatic transmission fluid. Don't mix too much as the acetone will evaporate if not in a tightly sealed container.

Best,

Jeff
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Re: 1999 650. Only firing one plug

Post by Adelphia » Sat Jul 06, 2019 12:35 pm

Ok. Quick update. Parts arrived today at exactly 20 days. Not a bad wait at all and honestly they look great. A few questions...

It came with rings. Is there any benefit to using the Hastings rings I got from Gene instead or should I stick with these?

It came with matched wristpins and brass bushings. MyUral doesn't really have a writeup on bushing removal. What is your best technique? I understand these are matched. I obviously still have the original wrist pins but new is new and I prefer new whenever possible.

I will need longer base studs to fit the aluminum cylinders. Does anyone have an easy off-the-shelf solution I can go to before I have to start doing actual work to make that fit?

I ordered carburetor studs because they were dirt cheap. They will obviously fit the Russian carburetors. I have Keihins now and I think the intake setup to fit these is insanely dumb. Cost is not an issue and neither is their leaky design. Would the Russian carbs be a better choice?

Any other wisdom to impart? Thanks!

EDIT: Photo of the kit.
20190706_103506.jpg
EDIT: Nevermind. Have to use these rings. Also, these rings rival some of the rings I've seen in older International diesels.
20190706_125225.jpg
20190706_125233.jpg
Any tips for gapping these beastly things?
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Dustin
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Re: 1999 650. Only firing one plug

Post by Adelphia » Sat Jul 06, 2019 1:48 pm

OK. So these rings are for an M62. That is going to be a much older model which explains a lot.

Let's get technical! So, my old pistons are in OK shape. Can/Should I go with my original pistons, Gene's Hastings rings, and these new cylinders? Should I take the pistons and new cylinders to the machine shop for a spec and hone/cleanup for a real nice fit?

So many questions!
Dustin
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Re: 1999 650. Only firing one plug

Post by propwash » Sat Jul 06, 2019 2:13 pm

Rings -
How many rings per piston?
The reason I ask, older pistons had 4, additional oil ring below pin.
I have Hastings sets (p/n: 5128) for the 4 ring pistons, standard size (78mm). I'd be willing to part with one set and they are stateside.

Ring Gaps -
See my answer here viewtopic.php?f=12&t=34850&p=432464&hilit=gap#p432464

Carbs -
If you go Russian/Soviet, I'd suggest K65Ts.

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Re: 1999 650. Only firing one plug

Post by Adelphia » Sat Jul 06, 2019 2:22 pm

There are 4 rings per piston. With the one below the pin. I just figured that out that the pistons that I was sent are of a much older design. This doesn't bother me at all, so long as they work. It's just a somewhat foreign concept to me to have piston rings like this because I'm a younger mechanic and this design is well before my time.

As for carbs, I am considering Russian because I am not a fan of CV carbs, never have been and never will be. Also, stupid compliance fittings.
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Re: 1999 650. Only firing one plug

Post by propwash » Sat Jul 06, 2019 2:31 pm

They had 4/piston until they were imported and changed.
Older design, but still in use.
M62 rings are what this used on all Soviet/Russian 650 Urals/Dneprs. The M62 was an early Ural OHV 650 and those rings are what you will find in any Russian moto shop.

Do the heads have the studded mounts for carbs?

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Re: 1999 650. Only firing one plug

Post by Adelphia » Sat Jul 06, 2019 2:37 pm

propwash wrote:
Sat Jul 06, 2019 2:31 pm


Do the heads have the studded mounts for carbs?
It has Keihin carbs and obviously compliance fittings. Looking at the setup, I don't like it and the idea of having slide carbs hard mounted to the heads is much more appealing to me. The ticklers and fuel leaking doesn't bother me at all.
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Re: 1999 650. Only firing one plug

Post by propwash » Sat Jul 06, 2019 2:41 pm

I prefer the bolt on sliders.
It doesn't take long to see all the headaches people have had with compliance fittings.

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Re: 1999 650. Only firing one plug

Post by Adelphia » Sat Jul 06, 2019 5:45 pm

Managed to break a compression ring. It snapped off in my hand while I was filing it so I assume it might have had a foot out the door to begin with. Ordering a new set.

I am just going to take the plunge and order the carburetors now. Since they are cheap, Ill take a chance on their cylinder base studs to see if they work with the aluminum cylinders. If they don't, Ill have spares. I am also going to order the wrist pin reamer tool they have listed. I don't know how to use it or exactly what it's for, but I think I might need it to replace the bushings and wristpins. Obviously shipping is what it is so the more you order, the more you save.
Dustin
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Re: 1999 650. Only firing one plug

Post by URALNUT60 » Sat Jul 06, 2019 9:28 pm

For my wrist pin fitment I bought a 7/8 240 grit ball hone, $18. Which carbs are you ordering?

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Re: 1999 650. Only firing one plug

Post by Adelphia » Sat Jul 06, 2019 9:48 pm

URALNUT60 wrote:
Sat Jul 06, 2019 9:28 pm
For my wrist pin fitment I bought a 7/8 240 grit ball hone, $18. Which carbs are you ordering?
I'm going with the K65T. Russian Garage says theirs are authentic, and I'm reading they are preferable because they don't have any plastic parts to crack or fail.
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Re: 1999 650. Only firing one plug

Post by jaybird » Sat Jul 06, 2019 11:35 pm

propwash wrote:
Sat Jul 06, 2019 2:41 pm
I prefer the bolt on sliders.
It doesn't take long to see all the headaches people have had with compliance fittings.
I have no comment on what carburetors are better than another, but I will say that I've had no trouble with compliance fittings, I think that most of the problems that people have with them are age or owner induced.
The compliance fittings on my GearUp have been on there so long I don't even remember when I put them on there, and I now have a heavy PVC snorkel mounted on them.
Many years ago I bought a pair of the phenolic heat shields that Raceway Ural sells, as the word was that they would protect your compliance fittings and carburetors from the heat of the engine, I said to myself that I would put them on when I had trouble or when the compliance fittings needed to be replaced, they're still in my parts bin, never used :D
Of course I always seem to have problems that no one else has, and the common problems seem to pass me by, I guess you have to take what you can get in life :D

Happy trails,
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Re: 1999 650. Only firing one plug

Post by jaybird » Sat Jul 06, 2019 11:39 pm

I am also going to order the wrist pin reamer tool they have listed. I don't know how to use it or exactly what it's for, but I think I might need it to replace the bushings
Even though the kit comes with bushings, if the bushings you have are not worn out, you don't need to replace them.

Happy trails,
Jaybird
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1995 Olive Tourist
1975 Enfield Diesel Bullet
2008 Enfield Bullet 500
1974 BMW R 75/6
Etc.

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