Been doing lots of riding and the 360 has been holding up well--I have tried the diala jet on all settings and it is presently not working(waiting for a smaller main jet from dealer)
Anybody aware of a higher compression piston or any idea if an aftermarketeer will be planning a big bore?? Bumping it up to about a 400 cc would make this machine sweet.

Pretty sure the 360 is now running at about full potential--Might benefit though from a port and polish

Still Lurking so keep up the good dialogue.

 

Looks like no one knows. This post was almost on the send page. They die if they get over 1 day old. You can go in there with a dremmel tool on those ports. No need to match the ports.

If you knew the wrist pin dia, the bore (82) and the distance from the wrist pin to the crown, you might try talking to Mickey about it. You might find a host of other engines use the same piston and you might find one. Mickey might be able to at least point you somewhere to buy a piston.

If I were you, I would do the easy stuff first.

Retard the cam - easy
Polish the ports - easy
Shave the head for approx 9:5 to 1 - sorta easy, because you probably dont have to take the cylinder and piston off.

Then every one with a 360 will list "olemanmoses head and cam mods" in their sig.

 

Nyroc, good to hear from you! New York misses ya!

OleManMoses, just to keep this thread new, I would like to hear responses from anyone who has tried Nyroc's suggestion.

 

Thanks for the response guys---Dealer gave me the wrong jet on saturday morning so i have not rejetted carb down yet to prove if dial a jet works and I dont think I am gonna---I put a small plastic washer under my needle jet (I finally took carb off and removed bowl on saturday and it is easier than i though to get to main jet and mess with carb) and motor is running better than ever. Put new plug in and did full throttle run and plug is burning perfect(tan to white)---DO NOT DRILL HOLES OR PUT ANY TYPE OF OPENING IN AIRBOX!! I closed my TPI valve from thunderproducts and my top end at top of my hill is a solid 30 mph---with TPI valve open it drops to 28mph. I am going to take my snorkel to local autoparts this weekend and hopefully replace with a larger radiator hose. I have also been eyeing up Dremel tools---Do believe I will pull head this summer and port and polish and shave head---NO MORE DIAL A JETS, I think I will rejet as needed from now on.

More air in more power out---Bike is a champ though---no regrets

 

Moses,
Porting a head is easy but to get it right is another story. Have it done by a pro make sure they do a flow bench run to see any benefit you can destroy a perfectly good head by messing around. You can also find out how much cam you can have reworked by taking off the head putting some silly puddy on the top of the piston, install the head losely then rotate the engine to see where the valve touches the puddy. Measure the height from top of piston to lowest touch of the valve. This will be a good measurement to keep when installing high compression piston and modded cam. Do a cam rotation inspection to see what the timing of the cam is then you can slot the bracket that the cam is held with and rotate it to get other timings. Pistons can be made or modified from other motors I have done it many times. Find yourself a good machine shop that will do small jobs for customers off the street. I am fairly sure you can mill off 0.060 inchs on a stock motor but be carefull when you would install a flat top piston later on.

You have been bitten by the performance bug. My friend has a Kodiac 400 that we have bored, reground the cam, installed larger valves and so on. The result is a kick a$$ Kodiac, it would hang with my slightly modded P650 on the low end. All it takes is time and money!!!