Old Man Time
Member
- Aug 10, 2005
- 22
- 0
canyncarvr said:re: 'Have any of you safely jetted it as lean as I have and been OK?'
'You...' who? 200 riders? No, not me..not even close. I have lean-roll stuck it with a 148 @ 3500', 70º.
220 riders with a 200 carb? Don't know about that.
re: 'Plug chop shows a creamy light brown or rust color.'
Color of anything is not the issue with reading the result of a 'chop' test.
ridejunky said:Anyways I know this jetting is not the recommended jetting for a kdx200 or a kdx220 with a 200 carb on it. I was just curious if you could safely run a 200 or 220 with this kind of jetting. For some reason the bike runs (seat of the pants) right when jetted this way. The second I start getting richer on the idle jet or the main and the bike starts idling poorly and loading up on slow technical riding.
ridejunky said:"A KDX200 with a 35mm carb is not going to be jetted the same as a KDX220 with a 35mm carburetor. The fuel is going into a larger cylinder with different porting."
This couldn't be more true. It also has a lower compression piston. The Idea behind the 220 was to make the bike handle like the 200 with more low end grunt and less mid range hit, thus the bigger bore, different porting and smaller carb. Many folks try to re engineer the 220 to be like a 250 and in the process loose the tractor like torque. Sure it has more mid and top but at the cost of the one quality it was designed for. Mine runs great everywhere with the 33mm especially down low and I don't have to abuse the clutch.
My kdx ran fine I thought like it was suppose, to the motor and carb being built and put together from a reputable company 160 main 45 pilot 1173 third from the top this is with a 36mm. after a few weeks of test and ask I now have 155, 42, DEM 2nd from the top this is good BUT I will still play with some different needles .coming from four stroke back ground I know about jetting but that oil in the gas get it to lean and screw the top end is intimidating, but I agree with steve.emma your best bet is what your doing ask, read, research, test, the best being your seat of the pants and then your still on your own.steve.emma said:even though the 200 and 220 motors differ in many ways, according to the justkdx website you do (as a starting point) jet a 220 with the 200 carb the same as you would for a 200.
as far as your concerns about the lean jetting are concerned i will admit it does sound lean but the seat of the pants is your best indicator. if it was too lean then you would likely get detonation and/or the power would flatten out.
G. Gearloose said:A stock, corked-up airbox would fool one to use jets that 3-4 sizes smaller..i coulldn't find mention of your case so i had to inquire.
Rhodester said:The first thing that strikes me is the possibility that your supposed "'96 200" carb is not from a 200 at all. Are you absolutely sure beyond a shadow of a doubt that you did not mix up the carbs and really put a/the 220 (33mm) carb back on the bike?? What you are describing sounds impossible to me. The only other possible answer I can think of is that your filter is grossly over oiled or the exhaust is partially plugged or something else along those lines. Have you checked the float setting/height and checked the condition of the needle and seat assembly (possibly dumping extra fuel into the mixture)?? The 220 and the 200H should be fairly closely jetted figuring a PWK35 is on both bikes.
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