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P5 rebuild

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Plaidfish

Plaidfish

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OK during wilma I had stuff to play w/ ...seeing as how our hobby runs on 12VDC for the most part I still enjoyed myself.....BUT.....I ran my P5 over a gallon and didn't change my filter :doh: ....anyway when I finally did remember to do it I noticed a lot of crud in the carb throat, caked on and all.....oshit......I tore it all down last night inspected it and it looks fine...still has awsome compression after 6 gallons now I ran and I don't know how many slothy put on it before me.....the head button has 3 dimples in it and I'm not sure if those need ot face a specific direction....I don't think it would make a difference since the plug sits in the dome and really needs even distribution on ignition.....do I need to put those in any specific direction for any reason????? and anybody know what size and thread screws those mills use?? I want to change em all from flatheads to allen heads....
thanks
-E-
 
3.5mm cap head machine screws are what you need for the head, and 2.5mm x 8mm cap head machine screws for the backplate, and if you want to do the carb pinch bolt you need a 2.5mm x 20mm cap head machine screw.

I'm not sure about the head button though. I don't think it would make much of a difference as long as it seats well.
 
Hey Plaid if you need some 2.6 x 8mm backplate screws LMK, I just bought a package and have lots of extras.

The head screws should be between 15-16mm long. Factory screws are 16mm but 15mm length is easier to find.
 
Last edited:
Sounds good.

I just broke down my 5-gallon Picco 26 because my air filter popped off during an extended dirt main. Pics here.
 
SD, thanks.....I'm going to stop at the LHS today and see if I can just pick some up....there's a specialty bolt shop on the way I'll probably check first though......I have it all torn down on my bench in a pickle solution til I get the screws....it was a real PITA getting to those head screws w/ aflathead.....
VB thanks for the list....I printed it out....hmmm maybe if I was smart I'd call ahead and have the stuff ready for me right????

I know I can look this up but one of techno geeks knows it so I'll ask here....
P5 carb settings???
LSN 2out, HSN 4 out? it's the older one w/ the 3 needles so I need MSN settings too....

Damn Ross looks like we both had good luck w/ dirt getting in and not trashing it......I thought for sure I was screwed.....How's your's
 
After I finished my main I found my Motorsaver bouncing around on my spur gear. I shut the motor and noticed that my carb slide was sticking. I could see dirt in the carb. When I broke the motor down I found a little dirt in the carb and some dirt in the hollow crank passage. I did not find any other signs of dirt. The rest of the motor looks practically brand new and I have tons of pinch left. There are no scratches in the piston, sleeve, and crank. I got very lucky. Sounds like you also got lucky.
 
yea ross.. the dirt "sand blasted" it thats why it looks new!!! :jk: glad both of you made it through your air filter loss.. I'm glad I've never had that problem..
 
I never lost mine....I just ran it too long onthe one I had on it......and it never even looked dirty...I know I lucked oout big time....I have like 5000 of those lil zipties....I just zip it every time I put it on.....
 
P5 stock carb settings are...5 1/2 out on LSN and 3 1/2 out on HSN.And I just found that info out on the s-grid.
 
Well I just hope my rod doesn't give up on me after I put the pinched p/s back in it.
 
Lets not let this thread get derailed again.
If you need to continue with the crap that started here, It's in the FFA forum.
Thanks.
 
CHOO-CHOO MOFOs......
I need the washer size for the little ones under clutch shoes on the Flywheel post..I'm going to try aluminum shoes and 1.o springs.....but I lost all my washers......sorry I asked this question in another post before, In the Xray thread.....
 
I'll get the answer for ya!

Here it is, part #961025 its a 2.5 I'm ass-u-meing that its mm, but the manual doesn't say and neither does the parts list. But you should be in the right direction anyway.
 
what's the part number from or do you have an outer diameter, i can just order a bunch from mcmaster... thanks vb
 
OOOOHH, I didn't even see that.....thanks VB...I ordered a bunch...I always loose those things in my lil boxes...I'll find em the day I get the new ones in.....
 

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