kevxtx wrote:Air is injected after the exhaust valve for Emission control to burn off any hydro carbons.
ok great... I'm going to get them removed next..
Kev, I'm thinking of 17/43 combination (from dennis).kevxtx wrote:A 44T will fit if you turn the alloy adjuster block 180 degrees on the rear axle. I did a 300km ride this morning & found the 43T is perfect for me & my riding conditions, 256km fuel light cam on, 16.73kms/1litre of fuel with all my mods on with custom fuel map.
The reason I went for the bigger rear sprocket over the 16t front sprocket was
1/ I want a shorter wheel base, going from 17/41 to 17/43 I have changed the wheel base by -1,15mm, it does not sound much but it will make the bike turn in better in the tight stuff.
2/ There is no chain slap from the drive train with larger rear sprocket, there is chain slap with a 16T front
3/ The chain wraps through a lesser angle using the 17T front sprocket
4/ The chain should last longer with one extra roller on the front sprocket taking up the engine load
17/41 = 2.41 = 100kmph = 3745rpm = 6th gear = standard gearing.
17/42 = 2.47 = 100kmph = 3836rpm = 6th gear
17/43 = 2.52 = 100kmph = 3927rpm = 6th gear
16/41 = 2.56 = 100kmph = 3979rpm = 6th gear
17/44 = 2.58 = 100kmph = 4019rpm = 6th gear
If you are lifting or carrying a load & don't run over 120kmph a 44T would suit. I have tried the 16/41 & this time wanted a little better cruising speed with the 17/43.
I just did the 690 H/L conversion myself. I did not find a need for items 41, 42, 43, 44. Also, if you go ahead and do the conversion, watch the screws that thread into the middle mask piece...the KTM drawing spec's an incorrect part number (they are too long and will poke right through the middle mask!) You will also need some random M6 bolts, washers, nuts to attach the SM high fender. It is pretty straightforward...most time will be spent making your 4 custom brackets. I am highly pleased with the results thoughYoozy wrote:Kev, have you put a list of the parts needed for the 690 nose ?