My Carbs

[dna9656]

As some of you may know my 83.5 (DKC2) has carb issues. The pilot jets are plugged and I'm too nervous about cleaning them. Well I have run lots of Seafoam through them without success, too scare to use the sometimes too hot Berryman's in fear of dissolving the floats. So when I accelerate in 3rd, 4th or 5th gear it sudders like being in a high gear on a hill. The performance suffer a little too. Well last weekend I had the air box off and while there a run a 0.09" guitar string down the large jet you can see on top of the carb. The string went down quite a ways. Then I took one jet out to look through it and re-installed it. I broke the other 3 loose and re-tightened them. The next morning going up the whiz way entrance ramp (about 1/2 a mile form the house) the bike "COMES ON", like I hit a NOX switch or some thing! If you have ever experienced a small block Chevy entering it's "sweet spot" on acceleration you know what I mean. Performance is BETTER but now and then. I don't think that those jets I fiddled with ae the pilot jets, but this is what's going on....performance IS better but I don't think I can light the big cigar yet! Comments please.

[Blackmax88]

The idle jets themselves do not get blocked but the fine bore circuits connecting them do, particularly the system connected to the idle jet/idle screw. You wont clear them poking around with wire. The idle circuits influence engine performance from idle to around 3000 rpm under light loads. You have a good chance of clearing the circuits without removing the carbs if you "shotgun" them, a common method used by Vmax owners. I always shotgun mine before a carb sync, keeps the 'Max running sweet. Google "Vmax shotgun carbs" for several methods, tho most of us have our own particular method. It will take you about 2 hours first time, then less than an hour next time. You don't need compressed air.

FWIW