300/440/550 1986 JS 550 first rebuild thread

[streetking-15]

 

[streetking-15]

Did a little custom work in the foot tray to help you stay on a bit more, I bought foot straps but I want to try riding it first

 

[streetking-15]

Depressing news:/ ski is at the shop cause the engine is pretty much distroyed so I have a guy fixing it which is quite upsetting but hell I just want it to run at this point... So I'm getting it back on the 1st so I'm pretty pumped to be able to ride

 

[kwakhead]

Do you search-re before rebuilding an engine. It looks simply put, but there's lots of little things you have to know or you can really screw it up. And patience is a must!! Have any idea how it blew up? And can u tell me what exactly happened?

 

[streetking-15]

I know that the keyway on the flywheel broke and it blew a couple gaskets and filled the crank case with gas and the pistons were in terrible condition... So it pretty much needed an entire rebuild and he is boring it and putting new pistons in it also. Yeah I thought I could do it myself and it did run for a weekend so I must have just made it worse.

 

[kwakhead]

Filled with gas?? Wow something went really wrong lol. Did u rebuild the carb at any point and not re assemble it correctly?

 

[streetking-15]

Yeah I know... And what started it all was that it was running bad so I put the carb back to factory settings and it just got worse from there... But it should be done this week so we will see! He's boring it out too so it should be faster just a bit