Goose & OMR Mikuni 26mm Carb Sync....

Base don our last ride, Goose had mentioned some slight back & forth stuttering at constant mid rpm range (4K-6K).

In our discussions and analysis, most likely culprit was the needle clip position based on elevation changes from Wisconsin to Arizona...

He arrived this morning and first thing to confirm before doing anything was ignition timing, voltages etc... We found his ignition time was way off ~ 1/4" to "F" @ idle!!! :blink: Whoa!!!!

OK, got out the manual, loosened the 3 plate screws and we couldn't only get ~ 1/8" from the "F" mark.... OK, re-set plate at 1/2 slot position.

Loosen point plate for 1/4 coil, rotated while timing light for "F" mark... Lock her down and repeat for 2/4 coil of "F" mark...

Re-check timing plate for coils, twist for 3500rpm for advance mark, all good... Goose was grinning for the rpm increased ~ 500 rpm's @ idle purred better... Re-set idle rpm 1000-1200rpm...

Onto to Sync... As can be reviewed in the image on the left, was slightly off, more then 2cm between each...
Twist the throttle and they all jumped up but at different rise and fall levels... Ahhhhh not good.......

Out with the manual, carb sync and re-measure as depicted on the right... All within 2cm... Better yet, twist the throttle and they rose and fell equally and in sync!... Whola!

Not to mention she was spurring @ idle like a kitten!

NOTE: At this point, I think Goose got wood! :blink: :laugh:

On for a little 40 mile run... No hesitations or surging... Had a quite a few thumbs up for I know he was just GRINNING like a sonsabitch!... ...

Ramp up the throttle/rpm range, change gears, twist it, let go of the throttle, no back firing, hold the rpm range in 4th & 5th gears no surging.... Golden, a few more thumbs up from the Goose...

Yeah, he got wood no doubt! :blink:


Stopped at a HD weekend warrior hang out for a celebration Co-cola... Had a few true riders come up and mentioned how they loved the old gals... One even had gooses old '78 KZ1000... Hell, the guy barely even looked at mine for he was reminiscing... :laugh:

Another guy came up and was like "Holly shit, 70's muscle KZ's, awesome.... That mi amigo's as always feels good...

Obviously, when we started the old gals and all eye's on us, we had to twist the throttle a little for that lovely Kerker sound... :laugh: :laugh: Not obnoxiously but enough to grab there attention.... Yeah baby!...

On the way back, Goose mentioned that he just barely felt it stutter here and there... Back at the garage we found gas was dripping at the hose to petcock... Simple hose clamp all better...

As discussed he's right on the cusp of lean/rich so still may have to change a clip position but all is good... He can confirm for he's riding home now and will monitor the old gals behavior....

All in all, a good day....
Good buds...
Wrench...
Dr. Pepper...
Ride...

Life is good...

OMR

ive been trying to buy his old kz900 from tganek for a long time,no luck yet! :laugh:

In case anyone else needs for the 26mm Mikuni carbs....

continued...

It's surprising that it doesnt take too much to make these old gals sing! :laugh:

Nice post

That's How it went. Great Sunday bike day. Thanks OMR for the great repair day and ride. I love the smell of Gasoline in the afternoon.

Goose.