wiseco pistons for the fl350
80mm 80.5mm 81mm 81.5mm 82mm last one is 82mm

now did you measure with a feller Gage piston bottom to the bore
wiseco are to be .004 Gage or .002 per side
that will tell you if you need to bore to the next size that's the backyard hacker way

OR mike the out side of piston and find that largest size then
use a bore Gage to measure to bore to find the differences


thanks SpeedChaser

I wouldn't get too attached to the cylinder either, those 4 bores will last you a long time if you jet properly and run a good synthetic premix oil. If you check ebay often you can find cylinders in the 50-100 range with several bores left.

I let this one go recently as I already have a spare .

http://cgi.ebay.com/ebaymotors/ws/eBayI ... &viewitem=

certainly don't waste a bore, but being down at 90psi .. I would start leaning that way.

If you do just replace the rings let us know what type of increase you see, I am curious to find out.

the honda shop gave me this guys number who works on older 2 strokes,they called him the"honda doctor" I'm going to take the piston and cylinder to him and get an expert opinion on it,that wont be till my next day off {sat 28th} so i'm in nuetral till then,
thanks everybody for your help so far

If I do need to replace the piston,any suggestions on who to buy from? I ordered some small stuff from chucklenuts at aftershot motorspurts motorsports and was happy with them. Looks like odyssey salvage has the best price,195 for piston and gaskets
Pilot oddy performance was 154.00 for the piston and 46 for the gaskets for total of 200.00,chucklenuts at aftershot motorspurts had piston for 169.95 and 19.95 to drill out piston,not sure how much for gaskets,they had a gasket kit for 76 bucks but i don't know if that's just for the top end or what.
I do know i want to have the piston drilled but i don't want to attempt it myself,does anyone else do the drilling besides chucklenuts at aftershot motorspurts motorsports?
what do you guys recommend?
thanks

ok,whats the inside joke Im not aware of regarding aftershot?

he sucks and is just a middleman taking your stuff to another shop to get work done

hes not allowed around these parts.

wow,why don't you tell me what you really think of him guess I shouldn't have said i bought something from him,lol

I haven't posted alot here but have read the same thing about chucklenuts at aftershot motorspurts several times. I think there is someone that will do you cylinder pretty inexpensive on the board. Hoser do you have any ideas?

Hello the piston are here on ebay

http://shop.ebay.com/?_from=R40&_trksid ... Categories

and you should go out and buy some feeler gauges. Check what you have before you go see what the other person says
so you are both on the same page.

take some more pic's of the piston and how thick of a feeler Gauge you can slide in on one side of piston in the bore.
bottom of skirt of piston to bore of cylinder

it is just nice knowing what you have so some one will not blind side you on a new bore .

thanks SpeedChaser



P.S. where are you located state that all

since you asked, go about halfway down and start reading

http://pilotodyssey.com/PO/viewtopic.ph ... sc&start=0



i would buy parts from him if he was the cheapest, but again maybe i wouldn't, honesty goes a long way

My last 350 piston kit came from ebay, and was 99 bucks for rings piston circlips and wristpin bearing. They seem to fluctuate a bit. I have dealt with randy at odyssey salvage a few times. he is a nice guy but can be real slow in getting back to you, and often difficult to get a hold of.

did you drill the piston yourself? will randy at ody salvage do that for you?

No I did not drill it myself, any shop that does boring should be able to do it for you though, it is a pretty common thing to do to 2-strokes. I would just call around to some local bike shops and ask if they do 2-stroke boring. You should mention that your cylinder is not plated too as that makes a difference to the person doing the work.

I think its pretty easy though, I will probably drill the next one I do on my own.

I drilled my own on my piston, was pretty easy. The instructions I had were pretty clear so no big deal.

my $.02

JIm

wheres the instructions?

They come with the piston


Some info on it here
viewtopic.php?t=4212&postdays=0&postorder=asc&highlight=350+cylinder&start=12

Some piston prep info viewtopic.php?t=3399&highlight=port+bevel

Port bevel info viewtopic.php?t=3702&highlight=port+bevel

thanks hoser
heres some more pics,just cleaning them up now,getting old gaskets off and stuff
Did the quick and dirty method for cylinder check,thickest feeler I could get in was .003.Like I said before,I don't know what I'm doing,will be taking it to a professional sat

honda dr was no help,he doesnt have machine big enough to bore it,but he thought it needed bored out.My neighbor came by and looked at it and he thought the cylinder looked fine.I need a pro but having a hard time finding one

well i have the cylinder sent out to be bored,got the complete set of gaskets from service honda today,got a new fuel pump,just waiting to take the next step,cant wait to get this thing running again

now the title of this thread should be caleed need help putting back together for the first time
got my cylinder back today so will be starting soon on it,had some questions before starting
1.does the piston face the exhaust port where the holes are drilled in piston?
2.do you put something on the cylinder to hold the gaskets?
3.ordered the complete set of gaskets from service honda,the bottom gasket is just one metal gasket but the top gasket is 3 stuck together{see pics}I think ive read different views on how many gaskets to use,so need some advice,
thanks again to hoser for all the help

You will need to get a 3/8 drive torque wrench and the motion pro tool below
http://www.motionpro.com/motorcycle/too ... h_adapter/

then read this...
http://pilotodyssey.com/PO/viewtopic.ph ... motion+pro

Ask Hoser for his suggestions on the top or head gasket... I am using all 3. Only because I am not real good at checking the squish yet...

Do as much as you can before you put it into the ODY... Put it together and do a leakdown test on the bench just because it is easier! You figure out the leakdown tool yet????

I lost a piston because the fuel pump hose that is behind the clutch was loose. I also ALMOST lost one because this hose was too big, so get a clutch tool to hold it in place... Tool will depend on who made the clutch...

I am sure there is more, but it is late...
David

1. yes, the purpose of the holes is to help lubricate and cool the bridge in the exhaust port to keep it from swelling. That is the hottest part of the cylinder and a common source of seizures in stock motors. There is usually an arrow on the top of the piston as well that points to the exhaust port.

2. I have never used any type of sealer or such on the head or cylinder gaskets. Not sure if they make anything designed for use in those areas.

3. Most will just use one of the thin outer layers of the head gasket when running the stock head. Aftermarket heads have smaller domes and can create high amounts of compression so using the complete gasket is better for those, I just learned that one the hard way. see my recent seizure thread.

viewtopic.php?t=5330

which ever you go with just check the compression and see where you are at. using the full gasket will lower the compression and using the thin part will increase it. I think stock is around 130 or so ???? some one will correct me on that.


Turbo is right too, make sure you use a torque wrench when tightening the head nuts back up. They are very easy to over tighten and strip out the stud hole. Also learned that one the hard way I got mine from northern tool for $35 bucks or so, and it is a must for working on atvs of any kind.

No sealer is required... learned this the hard way too... it just makes a mess...

I've already bought the tool,thanks

[/quote]then read this...
http://pilotodyssey.com/PO/viewtopic.ph ... motion+pro

Ask Hoser for his suggestions on the top or head gasket... I am using all 3. Only because I am not real good at checking the squish yet...

Do as much as you can before you put it into the ODY... Put it together and do a leakdown test on the bench just because it is easier! You figure out the leakdown tool yet????[/quote]

no,don't have a tool yet,motor (( Internal Combustion Engine ? )) is not out of the ody to do a test on the bench

[/quote]I lost a piston because the fuel pump hose that is behind the clutch was loose. I also ALMOST lost one because this hose was too big, so get a clutch tool to hold it in place... Tool will depend on who made the clutch...[/quote]

when my trouble first started I noticed this hose off the clutch but wasn't sure if i pulled it off messing with it or if it came off by itself,I didnt realize you could lose a piston from this being off.Not sure what your talking about to hold it in place?

I am sure there is more, but it is late...
David