I have run into a serious problem with my engine install and I need advice. I mentioned in my original post (see here: http://motorbicycling.com/showthread.php?p=596759#post596759) that I was concerned about the wide tires on my Huffy Deluxe beach cruiser not leaving enough room for the chain to run past. It appears my fears have been realized (see photos at end of thread). After I took these photos, I removed the rear fender but there is still not enough room for the chain to run. The lower run off the sprocket, past the fork, is barely squeaking past, thanks to the pulley, but giving that enough space causes problems farther up. Where the chain needs to pass by the tire to the engine, the chain is rubbing against the tire, on both top and bottom runs. I'm confused because other people claim to have used a Huffy Deluxe but I have seen no mention of this problem.
Can I somehow move the drive sprocket on the engine out 1/2" or make some other modification? Someone suggested shifting the rear wheel over on the axle but that does not appear possible since the hub+nuts already takes up the entire space between the forks. Even if that were possible, the tire would then be rubbing up against the original chain guard on the other side.
Do I just need to buy a new wheel with a narrower tire?
Can I somehow move the drive sprocket on the engine out 1/2" or make some other modification? Someone suggested shifting the rear wheel over on the axle but that does not appear possible since the hub+nuts already takes up the entire space between the forks. Even if that were possible, the tire would then be rubbing up against the original chain guard on the other side.
Do I just need to buy a new wheel with a narrower tire?