my 2011 Atomik Fuse 125/150

[xLOCOx]

i pmed you my67xr!!

 

[my67xr]

^^ replied/fixed

 

[my67xr]

Hope theres a V2 and 64mm bore on the way to Craig

that'll cost 5 times as much as the bike originally cost me, lol

 

[my67xr]

was checking over the 155 today and found a very loose timing chain.
i took it out and have found that it is almost 1 link longer than it is supposed to be.

so i pulled the head off as well just to suss things out.
the valves don't look like they've touched the piston

 

[xLOCOx]

are going to need that bottom end?

 

[gottagetacheaperhobby]

was checking over the 155 today and found a very loose timing chain.
i took it out and have found that it is almost 1 link longer than it is supposed to be.

so i pulled the head off as well just to suss things out.
the valves don't look like they've touched the piston

so the timing chain stretched then? can you get heavy duty timing chains?

 

[my67xr]

yeah there are heavy duty ones available, here's one- YX & ZS 150/155/160 Cam Timing chain - Pit Bike Engine Parts - Parts & Kits ZS 155cc & YX160 - TRC-1252 - TBolt USA, LLC
i think it looks like the timing chain tensionor wasn't reset before it was refitted at some stage, and it's killed the old chain.

 

[my67xr]

the Takegawa cam chains are made by DID

 

[gottagetacheaperhobby]

ah ok, at least there are some good replacements available, and you found it now

 

[my67xr]

i wanted to check the timing so turned the flywheel, and heard a noise in the head
when i checked it out, i saw it was the cam chain skipping the teeth on the cam gear

i'll just use the one out of the YX for the moment.

i paint stripped the YX head today too, it's almost ready to go onto the 155.

 

[my67xr]

i picked up my new grips today, Troy Lee/ODI's $17




here is the length difference in the stretched cam chain(top) and the low hours cam chain (ex YX160 bottom)




YX160 head is cleaned up, and the piston etc

 

[gottagetacheaperhobby]

so its nearly go time for the big girl yeah?

 

[my67xr]

just about
YX head is on, just need to refit the stator,manifold, carby etc then bolt it in the Fuse

 

[my67xr]

i started cleaning up the Z155HO head last night, thought i'd deshroud the valves to help the flow.
then the grinding stone spent a little time down in the runners, it's a start for now.
and this morning i gave the combustion chamber a polish up with Autosol to see how much more work it needs there

 

[stoozo]

Just put it in ya bike already!!

Sent from my WT19i using Tapatalk

 

[my67xr]

the 155 head is close on ready now, ports are cleaned up, exhaust polished
ready to give the valves/seats a lap and it's done

 

[stoozo]

Cool I think the yx f-d itself.........

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[GooseMan]

killer job mate, maybe you should be an engine machinist for a profession?

 

[Blender]

Sweet work, I'm going to call on you if I ever need a head done, lol

 

[gottagetacheaperhobby]

very nice job craig