• Required reading for all forum users!!!

    Welcome!
    Register to access the full functionality of the GSResources forum. Until you register and activate your account you will not have full forum access, nor will you be able to post or reply to messages.

    A note to new registrants...
    All new forum registrations must be activated via email before you have full access to the forum.

    A Special Note about Email accounts!
    DO NOT SIGN UP USING hotmail, outlook, gmx, sbcglobal, att, bellsouth or email.com. They delete our forum signup emails.

    A note to old forum members...
    I receive numerous requests from people who can no longer log in because their accounts were deleted. As mentioned in the forum FAQ, user accounts are deleted if you haven't logged in for the past 6 months. If you can't log in, then create a new forum account. If you don't get an error message, then check your email account for an activation message. If you get a message stating that the email address is already in use, then your account still exists so follow the instructions in the forum FAQ for resetting your password.

    Have you forgotten your password or have a new email address? Then read the forum FAQ for details on how to reset it.

    Any email requests for "can't log in anymore" problems or "lost my password" problems will be deleted. Read the forum FAQ and follow the instructions there - that's what we have one for...

  • Returning Visitors

    If you are a returning visitor who never received your confirmation email, then odds are your email provider is blockinig emails from our server. The only thing that can be done to get around this is you will have to try creating another forum account using an email address from another domain.

    If you are a returning visitor to the forum and can't log in using your old forum name and password but used to be able to then chances are your account is deleted. Purges of the databases are done regularly. You will have to create a new forum account and you should be all set.

Finally getting around to the 550/699 project....

pete said:
Looking good Tom! I definitely like the wires on that too... paintwork looks good and love the colour also.
Click to expand...

I like the colors, definitely like the spokes, the paint is a bit on the rough side, I'll try a little wax but not expecting much improvement.



jwhelan65 said:
Dang you are speedy....:) Nice job!
Click to expand...

Thanks but I'm not speedy at all.
No, haven't done anything but find the pieces and bolt it together. It's still a 550. Haven't even gotten it running, haven't cleaned or rebuilt anything yet.
Nothing painted, nothing shined.
Not even started on the 650 upgrade.
 
Always liked the style and design of the 550e from that year. I actually have a 550 tail piece I have been waiting to use on something. Come to think of it I have tons of crap Ig oing to maybe use some day..:rolleyes:
 
jwhelan65 said:
Come to think of it I have tons of crap Ig oing to maybe use some day..:rolleyes:
Click to expand...

That's about it so far, just bolting together a bunch of crap that's been kicking around here for years getting in my way...

There's already some space freed up in the garage.

Room for another motorcycle??
No No No can't think that?
No not even Tom's skunk. It won't fit.
Ok, maybe just the skunk!! :D
 
Yes, I always like the lines of the 550. Nice to see you getting things together.

cg
 
She's Alive!!!

Sort of. Got it running for 30 or so seconds at a time, couldn't get it to take throttle or rev up much, couldn't get it to run without full choke at all. All four pipes got warm, even the one with zero compression. Not sure I understand that, but at times it certainly sounded like it was running on four cylinders.

Time to play with some carburetion and try it again.
 
OK, back at it.
Fresh gas instead of what's in the lawnmower can from whenever it was last spring, now it fires right up, revs up, running more or less evenly and all four pipes were definitely hot. How can a cylinder with zero compression run evenly and get it's pipe hot? Maybe the compression fixed itself? WTF?

I'll check into it once the smoke clears from the garage.
 
tkent02 said:
OK, back at it.
Fresh gas instead of what's in the lawnmower can from whenever it was last spring, now it fires right up, revs up, running more or less evenly and all four pipes were definitely hot. How can a cylinder with zero compression run evenly and get it's pipe hot? Maybe the compression fixed itself? WTF?

I'll check into it once the smoke clears from the garage.
Click to expand...

Is it possible the zero compression was a false reading?
 
UncleMike said:
Is it possible the zero compression was a false reading?
Click to expand...

Not really, I tested it several times. Cylinder #2, each test it came up zero. Maybe a ring was stuck or a valve was stuck or something, and it unstuck itself from running a few minutes? Don't know yet, but it goes through the gears just fine, clutch works although it drags a lot, no funny noises.

Also added brake fluid to the front (650E) brakes, they work just fine too. ;)


Edit, now the compression tests at 100 - 90 - 40 - 100, better than zero anyway.

Still leaking fuel from the Ts, got to dig into that.
 
Last edited:
Might be the rings, maybe pour a little marvel mystery oil through the spark plug hole and let it soak for a while? Wouldn't hurt anything. Also could do a leak down test and see where the air is coming from. Exhaust would be a burnt valve possibly, intake would be a bent valve (intake valves usually don't burn), crank case would be rings or piston damage. Any who, just an idea.
 
musicman said:
Might be the rings, maybe pour a little marvel mystery oil through the spark plug hole and let it soak for a while? Wouldn't hurt anything. Also could do a leak down test and see where the air is coming from. Exhaust would be a burnt valve possibly, intake would be a bent valve (intake valves usually don't burn), crank case would be rings or piston damage. Any who, just an idea.
Click to expand...

Been there done that. It's coming back out the intake. Intake valves do burn if they are too tight. But intake valves once burnt, don't unburn. I'll find out once it comes apart.
 
Could be a combination of both. Some valves may of been open for some time and had to re-seat.
The rings also may have re-seated too.
 
After being sick most of last month, got around to fixing the ignition. Totally burned up points, bad condenser, a broken rotted spark plug wire cap, cracked coil (that still worked by the way) all of it screwed up. Parts from another 550 engine, a little filing and adjusting, it's all good.

Installed the second set of carbs after the dip, the first set was still messed up.

All put together and it fired up quickly, a minute on the choke and now it revs right up. The engine sounds good, all four cylinders firing for sure, even the one with the compression problem. Need to test drive the transmission just a little bit and then tear into it for the 675 mod.

I am curious to see what's up with that one cylinder.
 
Stator is good, 75 VAC at 5,000 RPM.

Compression after running ten minutes or so, running up to 5,000 or 6,000 for a Stator test, now 98 - 93 - 102 - 102. Getting better. Those are fairly high numbers for up here at 6,000 ft.

Need to check the valves again. I'm thinking this might be a pretty good engine.
 
Wow you work fast! Btw, what base gasket did you end up using? 550 or 650? I bought both just in case...

How hard was it to install the 650 ignition advance onto the 550 crank?
 
Toasty said:
Wow you work fast! Btw, what base gasket did you end up using? 550 or 650? I bought both just in case...

How hard was it to install the 650 ignition advance onto the 550 crank?
Click to expand...

No, I don't work fast at all. Very slowly nice I missed all of January. Just trying to run it as a 550, to see if the lower end is good before doing the 675 swap. It seems like it is, haven't ridden it yet though. Need to get a gas tank cleaned up and on there, and snug up some bolts here and there.

I know nothing of gaskets and advances, although my plan for now is to use the complete 550 ignition.
 
Ah okay. Btw from what I've read from a few other guys who have done this swap, you need the 650 ignition advance or it'll ping. And that it takes some modification on the bolt for it to clear the 550 cover.
 
You must log in or register to reply here.
Back
Top