[JasonMcElroy]

All,

Last fall I went through my 1964 FLH almost top to bottom. Had been running the wheels off it for more than a decade since last time I went through it.

One of the things I did that may be of interest here is to take an old Linkert M74B of the shelf and do a very thorough rebuild, checking everything. Ended up repairing bent flange, replacing throttle shaft bushing, and repairing the choke shaft.

If that stuff interests you, go check it out: M74B Rebuild (photo journal)

Runs like a swiss watch now. Was just up in the Santa Cruz mountains on it last Sunday (instead of the Super Bowl).

Jason

Some ham-fister had pried the bowl off with a screwdriver and seriously warped the flange at some point in the last sixty years. Amount of bend and casting damage looks like they used a drift on it. No matter. Fixed.

Reproduction throttle shafts are nice, but need to be fitted. I size the bushes in the carb body until just free. When the throttle plate screws were tightened down, the shaft would bind from deformation. I had to make up a shim between the plate and shaft. Worked great.

All clean and nice after rebuild.

Back on El Guapo and ready to run.

 

[Cpt.Fred]

awesome work, thanks for sharing!

 

[govmule84]

Very nice, Jason. So were you able to make that cut? With the way you've got that fixtured, I would imagine your insert holder would be sticking out a mile and would chatter if it wasn't 2" thick. How did you wind up handling it? I didn't see any clues in the album.

Lol at "Apparatus predates safety."

 

[rhysmort]

Really nice work, Jason.

I bought a 74b "Rebuilt" for my knuckle, the butterfly bushings were a good few thou slack, so making those and getting the old out is a story as old as time, no less exciting either!

 

[JasonMcElroy]

Very nice, Jason. So were you able to make that cut? With the way you'vegot that fixtured, I would imagine your insert holder would be sticking out a mile and would chatter if it wasn't 2" thick. How did you wind up handling it? I didn't see any clues in the album.

Lol at "Apparatus predates safety."

You've got a keen eye for detail.

After spending about an hour on this janky-ass setup (in the pic) I ultimately found that I could not get a cutter in there reasonably.

The setup was useful for indicating that I'd finally gotten the flange nice and flat.

Were I to do it again, I'd probably make something similar to a lapping/grinding collar so the jet body would protrude downward with the abrasive area riding on the bowl flange . . .

Then again, jeweler's files and Dykem worked out just fine this time.

Jason

 

[govmule84]

jeweler's files and Dykem

...will get many jobs done, so long as one has patience. Extraordinary results can be had from ordinary tools if one is willing to put in the work, as you've demonstrated.

Top-notch rebuild. Nice to see old stuff renewed.

 

[Junklover]

Nice shop. You must been working the crap out of that skinny kid. Looks hungry, not to mention he lost his shirt. Lol. Thanks for sharing the detailed pics of the rebuild and process. Sweet bike too.

 

[JasonMcElroy]

Nice shop. You must been working the crap out of that skinny kid. Looks hungry, not to mention he lost his shirt. Lol. Thanks for sharing the detailed pics of the rebuild and process. Sweet bike too.

Thanks.

It's just my suburban attached garage. Jam packed with tools and bike though ;-O. I also do not share it for storage, decorations, camping gear, other household bullshit. Tools and bikes only.

I shared your comment with the boy at breakfast this morning and he laughed. He's one of those constantly on the move kids (damn I want that energy) and we can't feed him fast enough.

Bike has been in my family of friends since we found it on a road trip in '98. I've done all the wrenching on it in that time as I always knew it'd eventually end up with me. Where others get tired of constant maintenance . . .I step in and take in another lost gem.

Jason