Checkmate

I did hold the throttle wide open during the test. and i am at sea level. a buddy just asked me if i ran the motor before i did the comp. test. i didn't. he said that the oil i used to lube everything during the install would give me a higher reading. he also said that running it will take any sharp edges off the rings that could give you a higher reading. i am going to go do another check. i'll let you know the results.

how much for bars?

My bore size is .040 over. how much more compression is that worth? (if any). Does anyone know how much compression increase the power pistons give you? i am still looking for the answer to the fuel questions. Can i mix with 94, and do i need to change my ratio? only reason i want to mix is because i am getting wacked for almost $8.00 per gallon for the VP.

i just changed mine yesterday.... the book says 1.5 quarts.

when i'm not blowing up / rebuilding the shee, i use my toys that actually are reliable. got a honda 900rr, and this bad machine.....

i didn't think the compression would be that high either.... i switched from the vitos Super Stock (Exhaust timing pistons) to the Vito's Power Pistons. I guess the Power pistons raised the compression even more. If i am at 200 LBS. now, what would 21cc bring me down to? and what would 22cc bring me down to?? I would rather be reliable at this point.....i'm gettin pissed with the 2 stroke when all my boys are running thumpers and have NO PROBLEMS. But when my chit runs it whoops ass. But i am having too much trouble keeping it together. i have an aftermarket hodrod crank. i don't think it is welded. What compression is safe for an unwelded crank?? i have already installed the DIAL-A-JET, and it took drilling into the carbs, so there is no going back.

i just went through 2 motors due to detonation. You guys informed me i needed race fuel. Now i just put it all back together, and took compression tests. i am at 200 lbs. at sea level. i have the adjustable timing plate, but backed it off for now...will probably advance it after break in. I just bought some VP C12 (108 octane). Do i need to run this VP fuel straight or can i mix with 94?? Will this change my mix ratio? i run Motul 40:1 now. i have FMF's, Vito's Power Pistons, Vito's Needles, Ported reed cages and Torque reeds, Cool Head with 20cc domes. I WAS running 300 mains, 30 pilots. I also just installed a dial-a-jet kit on the stock carbs, and moved to 310 mains. Dial a jet tells you to go down 1 or 2 sizes on the Mains. Do you guys think this is a good place to start with the Jetting? I don't feel like building another motor. Oh yea...when i turned the gas valve ON, both carbs were pouring out of the overflow. What are the chances that both floats are stuck?????

Looking for a 2 into 1 carb setup for banshee.

i think i may have figured it out.... i think i need to feed the bolts in through the back side of the hub.....just like replacing the studs that are there. but how do i get the original studs out? brut force?

i bought a set of wheel spacers off of a buddy a while ago and forgot i had them. he had a raptor so i knew the bolt pattern would be the same. i want to test them out, and i'm trying to figure out how to install them. I think they are durablue Rear spacers. they came with 8 long bolts, and 8 spacers. My Rear hubs have studs. i would guess i need to get the studs out of the hubs first. what is the best way to get them out? once they are out, how do the bolts that came with the spacers thread onto the hub? the holes aren't threaded are they? Or do i 'through bolt' them with nuts on the other side?? and what side do the little 1/4 inch spacers go? thanks

Not sure what the squish was. how do i check it? and what should it be for the future?

another... you cant really tell, but the left piston was starting to burn too (by the exhaust side)

i got the images hosted

that is a good reference site!! what would happed if my timing was TOO far advanced ?? maybe say +6 or +8 ?? Would even higher octane take care of that? if i understand correctly i need a higher octane due to my compression and elevation. how do you figure out what your timing does to that equation?? i have a pic of the pistons, but haven't found a place to host the images yet.

Is there a drain plug for the combustion chamber (crank area) ??? that would help me alot!!!!! I thought there was only one for the gearcase. As far as i remember they were not connected right?? If there IS a drain for the Crank, then i may try that.....flush the shit out of it with kerosene. If the smoke the crank, then i have the excuse to stroke it.

You will NEED to split your cases, I got away w/ out it b/c when detonated my piston skirt did not break nor did my piston shatter. Seeing as how you have detonated TWICE you will need to split the cases. sorry....didn't catch your other reply with the octane figures. What did yours look like when you detonated?? How did you get away with not splitting the cases??? my skirt didn't break or shattered piston the piston either...just looks like it was almost sandblasting the top of the piston till it wore thru. I have very fine metal shavings. Oh.....and the last time it happened i did split the cases and replaced the crank while i was in there.

Not sure about a taller crown, but they have the cut out in the front to advance the exhaust out quicker. My holes ARE buring thru more towards the front exhaust port. So that means not enough fuel (jetting) ??? What is the difference between a lean condition due to jetting, and detonation ??? I thought they were kind of the same thing??

I do have a gauge......I think i was aroound 180 when i checked compression. At what compression should you stop running pump gas?? Damn.....I was hoping to not have to pull the lower out and split the cases again. Last time i had problems during re-assembly with the clutch. I guess you cant get one of those small 3/8" computer style vacuum tubes in there??

Yea....the other side was also starting tp burn. I just did a search on my elevation, and it says i'm 100ft. above sea level.

For the Second time now i've had some serious detonation and keep putting holes in the piston (one side). Both times it happened i've been running in the snow...turning high RPMS on a wide open road. Both times...same piston. I am running vito's forged power pistons, a D&D head with 20CC domes and stock carbs with vitos needles and TORS kit. FMF's, advanced timing (stator plate). I am running 94 sunocco and Motul Oil mixed at 40:1. Jets are 300m/30p. K&N with airbox, no snorkel, and a few 1" holes in lid. After the first meldown (which also destroyed my crank and dome due to debri), i thought i found the problem. That side carb had an air leak. fixed the leak, stepped up a size in jets, and rebuilt the whole motor. This Meltdown, i noticed that the hole in the piston is in the same side, but also....the other side started to burn through the surface of the piston. I also noticed that this time the hole in the piston wasn't as large as the prior meltdown, and my 20CC dome is OK (must have shot most out the exhaust). So obviously i must be way low in jetting to be running in the 10 degree temps spinning high RPMS. (When i did plug chops it was in the 80 degree summer, on the street). I haven't torn the bottom end apart yet, but my crank seems to be spinning free and the rod play is in tolerance. My jugs did get a few scrapes, so they will need a skim. Questions: Is there anyway to flush the bottom of the crankcase of the tiny metal particals without splitting the cases and pulling the crank? Should i be running higher octane? larger jets? Should i go to a single carb setup for more reliability/less aggravation? Will cast pistons do any better? Sorry for the long post, but i am gettin frustrated with this thing!! and i don't want to have to go to a Thumper due to my frustrations.......(As i was broke down in the middle of the street a CRAPTOR and a 400ex went thumpin by me )

anyone got one. was looking to get one by Christmas.

I am looking for a small (50CC TO 80CC) used kids quad. Condition doesn't matter. email me: [email protected]

I am looking for a small (50CC TO 80CC) used kids quad. Condition doesn't matter. email me: [email protected]