83 1100 beyond hope

[Ponderosa]

Bought a couple of 1100L's a couple of months ago, thought I might get both going, at worst one of them going.. Well, after diving into the 83 it looks like compression is under spec for three and four cylinders. Getting 120# on one and two, 88-92 on three and four, noticing stripped/busted casing taps for ignition cover, lots of other stuff... Going to start to checkout the 82 tomorrow... Might get one bike from the two, part the rest of the 83...

[tkent02]

Why is the compression low, has it been sitting forever?

[Ponderosa]

It has had some rough treatment..

Why is the compression low, has it been sitting forever?

It has had some rough treatment, ridden real hard, scraped covers, beat up old Mac header (bottom ripped up pretty good), 56,000 miles. Guy I bought it from said he had it running last spring, but was running rough. Carbs had a lot of rust/crap (older VM Miks) in the bowls, tank is a mess, bad kreme job. I may tear into it for parting, will be able to tell more about it then, my hunch is that it has been modified, and then thrashed..

[woodman]

Check the valve clearances before you decide its no good on compression

[Ponderosa]

Good idea..

Check the valve clearances before you decide its no good on compression

Yea, could be, may just do a diff on it before that..

[Guest]

Got a pic of those old VMs?

[Ponderosa]

Yeap

Got a pic of those old VMs?

Yea, I'll post em tomorrow.. I was going to take a closer look at em also..

[Ponderosa]

Pics

Here a pic of those VMs. Some other problems, ground crank end, weld on main front mount, could be from a wrecked machine?

[Guest]

Those may be 33 smoothbores. Measure the bore of the intake side.

[rapidray]

Those are NOT, I repeat, NOT 33s!!! They MIGHT be 29s, but they are definitely NOT 33s! The 33s have a different shaped cap than those & the caps on the ones in your picture are just like stock VMs & 29 smoothbores at BEST! I hope this helps, Ray.

[tejasmud]

Not 33s, yes the caps. From looking at the filter side of the inlet the air jetting doesn't look like 29mm smoothbores either. Float bowls appear to have overflow barbs also. I'd say stock VMs.

[Guest]

Those are NOT, I repeat, NOT 33s!!! They MIGHT be 29s, but they are definitely NOT 33s! The 33s have a different shaped cap than those & the caps on the ones in your picture are just like stock VMs & 29 smoothbores at BEST! I hope this helps, Ray.

Gee Ray, are you sure??????

[Ponderosa]

Naw..

There 26s, I am going into both engines now see if I can make out one of the two, both frames are solid, nothing bent major. Probably just rebuild the VMs, they are a better performance carb, although not big enough for major mods.. Starting on the front end of 83, pulling both engines... Once I'm done, may have a few parts for sale...