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Motor idles perfectly now. Purdy sure it's a combination of tight seals at the reeds and very clean carbs (used jet files and cleaned everything out very well). One enricher pump and it fires right...

I feel rather stupid now having read your sig for the first time this morning. Now I think I shoulda just asked you for your recommendations... :doh:

Freeing up the blocked air at the intake, tho the coverage of the holes is almost a whole third, doesn't actually equate to that percentage of air in the ratio as to the carb throats, cylinder ports...

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Ready for assembly.

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The intake holds the most to gain. The third pic shows how much "plenum" opens up with a little grinding. The last pic with the cage offset shows how much material covers...

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Cleaned up cages and the 600 grit wed/dry with carb cleaner used to lap the faces. That's always a good idea even if you don't port em.

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If anyone is interested, L3/L4 Merc's have about 15% more intake air available with a couple hours work.
Untouched reed cage...

Will do sir, but the carbs were purdy contaminated so my "base line" is skewed. Bought the motor used last year and just got it hung end of last month.

10-4 I'll try and use the electric more using the StructureScan and trolling. Seems to read best around 3mph. I'm a Lucas guy, for decades. All the boxes in the HO Harley, even fork oil, and all my...

I didn't know the fuel/oil ratio varied from 50/1 with oil injection. Besides effects on spark plugs and possibly cylinder glazing from excessive idle, is it a bad thing? Should a full fuel burst be...

I figured it out if someone needs this info. The oil injection pipes into the transfer pump inlet so apparently they aren't real worried about it. I'm gonna run it as is.

Just bought a 1994 115 L4 carb motor that had a leaking oil tank. Bought a block off kit and removed entire system. Pulled carbs to rebuild and found out it's a 2+2 system with no idle jets in the...