Carb jetting on 78 sr650

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11 Apr 2015 08:09 #667493 by Britome
Carb jetting on 78 sr650 was created by Britome
I know this is a much discussed topic and I'm tired of wading through the massive content on line.

Bike is running great with a cleaned carb on the bench with pods and kerker 4 into 1 exhaust. However when I ride it bogs down and stalls. I'm thinking it is a jetting issue.

Which sizes should i buy? Need some help from seasoned vets who have a similar set up. Thx!

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11 Apr 2015 08:21 #667495 by Tyler
Replied by Tyler on topic Carb jetting on 78 sr650
We need more info unfortunatly. How was it ruinng before and what configuration was the bike in. Still uave the stock carburators? You can run pods but many here will reccomend the factory air box, myself incmuded.

Also is eveything else.up to snuff, valve clearances, ingition, good battery?

If I knew what I was doing all the time life wouldn't be any fun.

'80 KZ650 E 700cc, dyna ignition and coils, frame up restoration, daily driver
'81 KZ1300 A3 full restoration, custom big bore pistons, 1400cc 6 cylinder super bike
"77 KZ650 B1 - Barn Find, work in progeress
"74 Yamaha DT 400 Enduro

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11 Apr 2015 11:16 #667506 by Britome
Replied by Britome on topic Re:Carb jetting on 78 sr650
Everything else up to snuff. Wasn't running at all before. It sat under a tree for 10 years. Already cut the box out so no turning back with pods. This isn't a touring bike. Just trying to look cool with good performance.

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11 Apr 2015 12:30 #667513 by 78kzturbo
Replied by 78kzturbo on topic Carb jetting on 78 sr650
what kind of carbs do you have? what size jets are in the bike now.

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11 Apr 2015 18:35 #667540 by Britome
Replied by Britome on topic Re:Carb jetting on 78 sr650
Stock mikuni. Don't know what size. I'll drop the bowls and check.

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  • gd4now
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  • Denco where did you go?
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12 Apr 2015 00:31 #667595 by gd4now
Replied by gd4now on topic Re:Carb jetting on 78 sr650
For 1978 the SR came in 2 different versions the D1 and the D1A. The D1 came with vm24ss carbs and the D1A came with vm22ss carbs. The vm24ss carbs had a main of 102.5, and the vm22ss carbs had a main of 90.

1977 KZ650 B1
Pods and Denco header


OLD KAW OWNERS SMILE ALOT

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