I have used 105 gun solvent/cleaner w/poly on the 4 kit fox and 1 avid with good results. I used the blush retarder on two of them but didn't see a difference. I ask several shops what they use and they said 105. 1/3 the cost and not as deadly. MEK makes your kids born naked.
The exhaust came from Rotax Rick and wasn't even close to fitting. I had to turn the down pipe 90 deg, while keeping every thing the same length and diameter and slightly change the down angle, I understand he now has an exhaust that is supposed to fit???? In the picture the exhaust is in the cowl