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Assemble everything loosley then work front to back tightening evenly
Found it"The key to getting the 4 into 4 system to hang right is to fit them with the end joints missing at first. Fit the lower one first, remember that this bracket goes behind the frame hanger, fit the manifold clamp and collets very loosely so the front can still move around but can’t fall. Now fit the upper exhaust, bracket now goes in front of the frame hanger, so one each side, fit the footrest loosely. Look at the balance pipe at the rear of the exhausts, they should be directly in line with a small gap between them. Now move the pipes to allow this to happen, make sure the downpipes aren’t touching the frame especially on the left side, one pipe goes behind the side stand bracket and one in front. Once everything lines up, nip up the lower manifold clamp to fix it in place, loosen off the upper pipe until you can fit the rubber balance pipe, realign the upper and tighten the footrest bolts first, then the manifold ones. If you’ve got it right everything should look aligned from the rear with no twisting in sight."Copyright Ken P