riderboy

Did you sell them damn things yet? I'll give you a dollar for em.

Do you still have the 450 a-arms? Thanks.

Do you know what size any of the helmet's are? Thanks.

Where are you located at?

I have a set of 20cc domes that I know longer need, but they are for 68mm pistons. What size are your pistons?

I have a set of 20cc banshee big bore domes for a pro-design coolhead. They are made to work with blaster pistons 68mm bore. Would work great on a 421 cub set up. They are for sale on ebay. If interested let me know. Thanks. One has a few nicks on it, but other than that they are in good condition. Would like to get at least $30 to $40 for them?

I finally got a chance to check the squish on my banshee. That's the problem. Where the dome is angled at the end by the cyl. wall, I have .045 and at the first part of the angle I have about .010 squish. Looks like the piston was even grazing the dome. Must be the wrong angle on the chamfered part of the dome. Might have been domes for a blaster piston instead of banshee pistons.

I just got back from the dunes and I'm still having problem with spark plugs coming loose. I have the timing plate set at 4 and the dyna ignition at stock setting, 20cc domes on 68mm cub cylinder 145psi compression, 33mm carbs, cpi pipes, and running 100 0ctane gas. Seems ok if I just put around but when I start drag racing it only take 5 or 6 passes before one of the spark plugs either vibrates loose or starts to seperate. It runs pretty descent but not as fast as I think it should. Does anybody have any ideas. I am getting very frustrated with messing with this damn thing. I'm almost ready to put on some stock cylinders and selling the dang thing. I really don't want it to blow up on me, but I don't know what else to do.

Finally got a chance to ride at the dunes again and I am still having the same BS problem with the spark plugs coming loose or seperating. I have the timing plate set at 4 and dyna on stock setting and running 100 octane race gas. For the most part it just does it when I am drag racing. But it only take about 5 or 6 passes before one of them come loose. Don't know what else to do. Very tired of screwing with it. Also think it should be a lot faster. My buddy has relativly the same carbs, exhaust, 19cc domes, stock cylinders, weighs 100Lbs. more than me, and runs 91 octane gas and he beats me by 2 or three bikes every time. I am very disapointed that I spent a bunch of money on this CUB Cyl. and can't get it running very good. I love drag racing but getting very frustrated. Need advice be fore it blows up. Please. Could it be something to do with the way the domes are shaped.

Thanks for all the help.

Thanks for all the advice. I will try race gas and see what happens. Do you think that 91 and 110 mixed 50/50 would be enough?

I finally got a chance to check the compression. It only has 145psi on each side. I wouldn't think that that would be high enough to have to use race gas. I am wondering if it's something to do with th domes. They are oversized domes made to fit a stock size cool head. Any more ideas? Thanks for the advice so far. I really don't want to blow it up.

Just got back form the dunes. Had a a great time. Banshee ran great, but kept having a problem with the spark plugs vibrating loose and also had one of the plugs come apart where the ceramic goes into the bottom metal part. Almost like it is detonating or something. But engine sounded great. Wondering if any one had any idea why this kept happening? Banshee has a 68mm cub cyl., cool head with 20cc domes, 33mm carbs, CPI inframe pipes, timing plate set at +4, dyna ignition set on setting 3 on the programmer, and lightened flywheel. Running on 91 octane gas mixed 32 to 1. I have ridden the quad about 4 times since I got it put together and never had any problem before. This was the first time riding it at Little Sahara doing quite a bit of drag racing. Any ideas would be a great help.

Sorry about that.

Would you take $175.00 shipped.