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Posted by kfoster
- October 04, 2015, 08:15:34 AMI opened up the pilot jet and adjusted it to 2 1/2 turns out and improved things to some extent.
Recently I put shims under the needles in my new W650 to very good effect. I think I will do that to the Drifter when I have a bit of spare time. When I do, I will take photos and do a short tutorial. I am running stock air-boxes and exhausts with intact baffles on both bikes, so the stock jetting in theory should be close. A bigger main jet and after-market needles with tapers specific to the application may even work better. I'm just gonna' take baby steps and see what happens.
I have a set of four adjustable needles from an Ivan's jet kit for my ZRX floating around in my stash of jets as well as the stock ZRX needles. The ZRX runs four of the same Keihn CV36 carbs that the Drifter 800 uses. I kind of wonder how one of them might work on the Drifter 800. I am sure that it would be a real crap shoot. 
Posted by greenbarn
- October 02, 2015, 22:08:15 PMLike Troll said - blame the EPA anemic jetting. Jet it up a bit.
Posted by CDNRatMan
- October 02, 2015, 17:05:12 PM My bike no matter what the ambient temps are I need to start with the choke first thing every morning. Then once I have it warmed up it is good for the rest of the day. Even during Drift In every morning had to start with the choke out and let it run a few min and then slide it in and we were good to go.
Here in the cold fall mornings I can go about 10 miles before I can push the choke all the way in.
Posted by Troll
- October 02, 2015, 16:39:02 PMPlug heat range has nothing to do with engine temperature. Fuel mixture has EVERYTHING to do with plug heat range AND engine temperature. 800s, indeed, just about anything with a carb, have issues with the EPA mandated emissions...too lean in the off-idle circuit, the air temperature would have to be 100 before it was near correct...or maybe you would have to ride at 5000' to get it close....
Posted by Tfrank59
- October 02, 2015, 16:28:31 PMSo I think I read on one of these posts that I'm not the only one whose bike has a heart as cold as a wife's? I mean, it's not all that cold yet here in the Seattle area, but last night as I was riding home from work it seem like the bike never even got warm. Today I rode it, it is only about 50 something degrees, but again she took like about 5 miles and 10 minutes to get warm --is that normal? I'm running the stock heat range on my plugs – I think it's a 9 – should I go one heat range hotter?