Chassis number question

Reply Subscribe

Thread Tools

Search this Thread

Aug 25, 2022 | 02:57 PM

#11

Racepres

Seasoned HDF Member

Joined: Jul 2014

Posts: 8,603

Likes: 3,374

From: Cental, MI

Quote:

Originally Posted by stephtell

It was just a joke as people always seem to rip pn AMF...didn't mean to offend!

No Offense Taken... just that it gets tiring ... Even better example of Internet Wisdom

Aug 26, 2022 | 07:19 AM

#12

Architect

Seasoned HDF Member

Joined: Apr 2010

Posts: 9,568

Likes: 7,936

From: Long Island, New York

You need to go down to your local DMV and have a talk about 1976 VS 1979, not sure how that gets fixed on your title but I bet they will want to see the bike in person. Good luck.

Aug 26, 2022 | 07:51 AM

#13

Racepres

Seasoned HDF Member

Joined: Jul 2014

Posts: 8,603

Likes: 3,374

From: Cental, MI

Quote:

Originally Posted by Architect

You need to go down to your local DMV and have a talk about 1976 VS 1979, not sure how that gets fixed on your title but I bet they will want to see the bike in person. Good luck.

Hope it ain't like the Skank we gots runnin Michigan DMV
May as well **** into the Wind

Aug 27, 2022 | 05:32 AM

#14

Speeding Big Twin

Road Captain

Joined: Feb 2009

Posts: 695

Likes: 394

From: Western Australia

stephtell, what is the frame date code? I’d expect it to be stamped on the left side of the top engine mount. For example the top mount below has date code J8 indicating the frame was made in October 1978 and it was used for a 1979 model.

Does the back of your frame have blocks with two holes or does it have blocks with only one hole? Thanks.
Eric

Aug 27, 2022 | 02:10 PM

#15

stephtell

Thread Starter

Tourer

Joined: Feb 2015

Posts: 296

Likes: 40

From: Holland

I have the double hole frame...? So what does that make it?

Topmount I'd have to look into.

Aug 28, 2022 | 05:12 AM

#16

Speeding Big Twin

Road Captain

Joined: Feb 2009

Posts: 695

Likes: 394

From: Western Australia

Quote:

Originally Posted by stephtell

I have the double hole frame...? So what does that make it?

Topmount I'd have to look into.

That type of two-hole block is consistent with a 79 model. (And certain other years.) Earliest I’ve seen those two-hole blocks are 77 models.
The single-hole blocks first appeared about mid-75 and they were also used for 76 models.

Does your frame have rounded mounts to accept the studs for the coil bracket or does it have rectangular blocks? The rounded style would be consistent with a 79 model while rectangular blocks would be consistent with 76. The change to the rounded style seems to have occurred either late in the 77 calendar year or very early in the 78 calendar year.

Did you find stars at each end of your frame VIN yet?

Also look under your left case for a crankcase production number (CPN) consisting of nine characters, the first three of which may be 179. It may be near the outer edge and somewhat toward the front. If the cases were machined together as a matching pair at the factory then the R-H case should have the same CPN but it will probably be inside the gear compartment and not visible on an assembled engine. It may be viewed however after removal of the front pushrods and tappet guide.
Eric

Aug 28, 2022 | 06:23 AM

#17

magnum45pete

Road Captain

Joined: Jul 2021

Posts: 605

Likes: 441

From: BRIGHTON, ENGLAND

if the nose cone is off, at the rear where the torrington bearing is for the cam there will be a number stamped, it can tell the day, model, cubic inch & the number bike made that day