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Joined
1/7/2014
Location
Wanchese, NC
US
seawitch
2/5/2018 1:57pm
2/5/2018 1:57pm
Edited Date/Time
2/11/2018 5:52am
About to order my parts to do top end on my 2016 KTM 450 sxf FE
I am,going with OEM parts. They have 2 sizes listed
Do I need to measure first? Was hoping to order and have on hand so I can knock it out one evening.
Thanks for the help guys.
I am,going with OEM parts. They have 2 sizes listed
Do I need to measure first? Was hoping to order and have on hand so I can knock it out one evening.
Thanks for the help guys.
The Shop
I have 106 hours. Most I have ever gone before rebuild on any motor. Just life is busy. Plus been riding alot. On a positive note I am a every two track day oil and air filter changer and I usually ride in a higher gear.
I think KTM only offers I and II size pistons?
Vertex and Prox has C (cast). Wiseco has only one size if i remember correctly (forged type). I prefer forged all day long, but at certain wear-limits you have to go with cast or find a size+ forged.
I ordered a CD rom manual also.
Thanks for the help guys. Cant stand the lack of service manual you get with these bikes!
After years of yamahas I got spoiled I suppose.
I do have some nice dial calipers and what not. Figure I can get a good measurement using a piston ring...
Have split many a motorcycle case and can build or rebuild pretty much anything from mx bikes to boats to heavy equipment. The Lord blessed me with a mechanical mind.
Just asking about piston size because I am OCD.
Still kills me not to have a service MANUAL. I will have to print out my CD I have on way.
Thanks for the help.
Here are the values you need to calibrate from, or use as reference for cylinder indicator:
Ok mounting Clearance: 0.040 - 0.082
Cylinder (Size 1) 95.00 - 95.012
Cylinder (size 2) 95.013 - 95.025
My measures for my 450 SXF 2017 was now at 111h:
Top: 95.012> 95.022v
Midd: 95.022> 95.022v
Bottom: 95.032> 95.017v
For most people a 2 would go at first rebuild, but you could easily be up for a C/3 depending on amount of hours and wear.
I may see it but dang its def not obvious. Thanks for the replies.
Pit Row
Cylinder 1 or 2 differs up to 0.12mm within each model, which is why it is important to measure the cylinder. If you take the smallest 1 compared to biggest 2 it is 0.25mm which is quiet a big difference as your picture states
Tear down tomorrow eve
Then measure bore
Hopefully 3 days to get parts
Then,back up and going by weekend
Hmmm. If this were true then what piston do you rebuild a #2 cylinder with?
I sure would think ktm would have a #3 piston......but they dont
🤔
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