TIM LUTZ

I've used Klotz Super Techniplate at 40:1 for 30 years in everything I've owned that had ports. IMO it is the best premix. We must be careful when talking "rich/lean" when it comes to premix ratio. Rich/lean usually refers to air/fuel. This causes a lot of confusion on other 2 stroke forums because a 20:1 permix will run a lot leaner than a 50:1 mix.

Thanks Akheathem and Ritchieb, Good info. Yea, I have the 44MC, 8MC and the small 182AMC right angle hand pieced and the hang-up motor from CC. Just never done a Shee before. What I plan to do is map/blueprint my stock porting, bring it into Corel Draw and do all my new port timing/shaping on the computer. Then I'll cut a template on my plotter out of mylar. And yea, I think at this time I'll pass on the boost ports. If I have good results I'll post an .EPS or .PDF for all to see/use.

Anyone else want to jump in with porting specs or a port map?

I have mine between the jugs and the reeds. from what I understand this will add a little volume to the cases and give you a little more kick just off idle. It in effect also lowers you bottom end compression ratio and SHOULD hurt your top end. I don't see it but then again I don't see much gain on the bottom end either. Putting them between the carb boots and the reeds should add a little velocity to the air/fuel coming out of the carb and help things up top. I think one day the reed spacer will go the way of the boost bottle.

Sounds a lot like some clogged pilots. What size pilots are you running? Some other things to check are, Clogged petcock low float level Air leals after the carb Air screws 1.5 turns out Make sure your not to tight on the cable sdjusters on the carb caps Also make sure you got the correct float bowl on the left carb

Mud sharks work pretty good in the loose stuff.

Also, I don't have any left hand cutters to use with my 1MC handpiece. Do you think this is going to be a problem when I do the transfer ports?

How much bottom end do you think I’ll loose with 120/188 I hate to kill the awesome wide power band I get with the DMC’s Most of my riding is gas lines in West Virginia (fast trail riding) I would like to see a wide, useable 60-65 horse power when I put the bike back together if that is possible with stock carbs. Got the cylinders off last night and although there is not as much room to work as the ports on a blaster cylinder, I think I can do a pretty good job. I’m going to make a drill jig that bolts to the intake so I can get all the boost port holes the same. If anyone else wants to jump in with porting specs please feel free. Thanks all

Thanks Sloryder. This is some good info. Would you or anyone else by chance have info or a section drawing of the best way to reshape the head on the Shee? Thanks

After 11 years running on Klotz I think I’ll do a new top end. It’s just a shame that I have to do it due to a hole in the lower coolant hose causing it to overheat and pushing a head gasket. Anyway, While I have the jugs off might as well to do some porting . I have all the CC specialties equipment and have done a few Blaster cylinders with great results. The plan is to match and clean up the intake and transfers as well as case match the transfers and polished the exhaust. I have read that the Banshee can benefit from raising the exhaust port and not hurting low end. Can anyone suggest an exhaust port to deck dimension that will work well with the mods below and keep the nice wide power band of my DMC 916’s or even better a port map of a good trail/MX port job? Has anyone done the intake to transfer boost port mod? Any input would be great. DMC 916 pipes Stock carbs 290 mains Uni filter/ hole in air box lid Dual stage boysen reeds/ ported cages 4 degree key Reed spacers between cylinders and reed cages

Has anyone done it? Will the exhaust fit? Have a chance to trade my rolling frame with a 2007 yfz 450 roller. Thanks all.

Klotz R50 40:1 None better

Has anyone used Amsoil Super Shift ATF? Parts guy at my Yamaha dealer says it will give you the best feeling clutch you ever had. Going to try it after I do my water pump seal this weekend.