Need info!!

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ok imagine i drew it better thats your engine the red parts are thin around 1mm cardboard like material that air seals the joins in the engine

the top one between the head and chamber is metal

if one is gone u loose initial compression in the big end and loose power

if top one lots of power as u get a massive drop in secondery or main compression at the head




also in pink there is a rubber seal ill do another pic if this is gone u loose power same as if the big end gaskets are gone u loose the compression at the big end

these all must be good to get the true power from your engine and is most likely your issue


check these are sealed i use a gasket sealant to ensure a good seal !


im more expecting it to be the seals in pink tho
 
u can get to both of these seals without spliting the big end u can test if u get bubbles spraying them with soapy water to see a leak but id simply replace to b sure the factory give u rubish ones and insteall the poorly
 
to replace the crank seals remove the magneto and remove the drive cog using its removal tool if u dont have one i can direct u to where to get or plans to make

then use a screwdriver to rip them out destroying them but ur going to throw them just dont gouge your aluminimum case use a pipe to gentally put new ones in straight and with a bit of grease and this is most likely what you need to do



another thing is metal warps with heat u may have a warped head preventing a good tight seal this can also be fixed easyly by skimming it

placeing it on a perfect flat surface and sanding it against that surface i use wet n dry sandpaper on kitchin worktop
 
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asumeing all metal parts are in good order piston rings chamber bore the piston sits inside and no cracks or holes in your engine caseing
 
Can someone PLEASE help me with this dilemma. Okay, so I just went through roughly 3 tanks of the 16:1 (8oz of oil to one gallon gas) ratio and just now put in 20:1 (6oz of oil to one gallon gas) and it ran fine for about four miles. Then it started to die out. I would pull in the clutch and rev the engine and it would rev. But then started to release the clutch and the motor would bog out. WHY?!!!
You may now have to re jet the carb and try dropping the needle to lean it a bit! now that you changed your mix ratio there is more fuel available or it's richer so you may have to lean it out some!
 
You may now have to re jet the carb and try dropping the needle to lean it a bit! now that you changed your mix ratio there is more fuel available or it's richer so you may have to lean it out some!
i agree yeah most likely needle was thinking it had worked before carb hasnt been set up u need more air per fuel 1 notch higher on needle drops it down restricting flow of fuel more leaning out your mixture in midrange throttle
 
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rare that mixture would sack it out totally - I'd check head gasket
 
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