Installing New KX250 Top End?

Chris420 · 05-24-2008

I have a 99 KX 250 and recently purchased a new cilynder and top end kit from Motosport. I bought all OEM stuff. The shop that took the top end off let some dirt get inside the case. What is the best way to get the case clean with out taking it apart? It is not a lot of dirt but I am anal and would like the bike to be as clean as possible before I install the new top end. Also I am installing everything in the next two weeks so any helpfull info would be great. I have a Clymer manual and this weekend I will be preping the bike for the overhaul.

Thanks.

paul331 · 05-25-2008

Try just using air to blow it out .
How much dirt we talking about?

stevied645 · 05-26-2008

yeah +1 blow it out with a airline as long as it wasnt lots, if it was i would split the cases and clean bearings dirt would act like sandpaper and will cause bearing failure.

Chris420 · 05-26-2008

Its not a lot of dirt. The mechanic stuck a dirty rag around the connecting rod and some dirt was laying in the area around the connecting rod. I have another? How should I clean the studs that come from the case that hold on the cylinder? They have some rust build up from the coolant.

stevied645 · 05-26-2008

Wire brush not a total rough one though

Sledder · 05-26-2008

If it is only minimal ...AND you know that you can see it all..use a peice of fuel line duct taped(reduced down) on the hose of a shop vac. If you think there is some you cant see,...split it apart. Even a "little" dirt,,,agggh....dirt and engines dont mix.

94fmfkx250 · 09-24-2008

must be a **** poor mechanic

gaz · 09-29-2008

I use a wire brush thats used on suede shoes. It looks like a tooth brush but of soft wire. works great.

Fatcat 1 · 09-29-2008

I wouldn't go back to him!! The area anywhere near an open bottom end should be hospital clean!! (including rags)

Saleenguy · 09-29-2008

Quote:

Originally Posted by Sledder

If it is only minimal ...AND you know that you can see it all..use a peice of fuel line duct taped(reduced down) on the hose of a shop vac. If you think there is some you cant see,...split it apart. Even a "little" dirt,,,agggh....dirt and engines dont mix.

+1 on all he said.

And will add that for bolt cleaning i use the wire wheel side of my bench grinder.

jdager · 09-29-2008

take it back to the mechanic and let him clean it, although he may use dirty rags again...

05-24-2008	#1 (permalink)
Chris420 Still On The Kickstand BTK Beginner Join Date: Oct 2007 Posts: 41	Installing New KX250 Top End? I have a 99 KX 250 and recently purchased a new cilynder and top end kit from Motosport. I bought all OEM stuff. The shop that took the top end off let some dirt get inside the case. What is the best way to get the case clean with out taking it apart? It is not a lot of dirt but I am anal and would like the bike to be as clean as possible before I install the new top end. Also I am installing everything in the next two weeks so any helpfull info would be great. I have a Clymer manual and this weekend I will be preping the bike for the overhaul. Thanks.

05-26-2008	#3 (permalink)
stevied645 Wants better weather! BTK Expert Join Date: Nov 2007 Location: Scotland Posts: 728	yeah +1 blow it out with a airline as long as it wasnt lots, if it was i would split the cases and clean bearings dirt would act like sandpaper and will cause bearing failure. __________________ *KX250/500 Hybrid LOL Scary Stuff*

05-26-2008	#5 (permalink)
stevied645 Wants better weather! BTK Expert Join Date: Nov 2007 Location: Scotland Posts: 728	Wire brush not a total rough one though __________________ *KX250/500 Hybrid LOL Scary Stuff*

05-26-2008	#6 (permalink)
Sledder Forum Supporter Forum Supporter Join Date: Mar 2005 Location: NS Canada Posts: 1,223	If it is only minimal ...AND you know that you can see it all..use a peice of fuel line duct taped(reduced down) on the hose of a shop vac. If you think there is some you cant see,...split it apart. Even a "little" dirt,,,agggh....dirt and engines dont mix. __________________ 04 MS 1640 Thunder 100 in kit/cams Race ported heads by "dynoray" Thunder air V&H Propipe PC3

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05-25-2008	#2 (permalink)
paul331 MX. Dad and Racer. BTK Beginner Join Date: Nov 2007 Location: Sarnia Ontario Canada Posts: 116	Try just using air to blow it out . How much dirt we talking about?

05-26-2008	#4 (permalink)
Chris420 Still On The Kickstand BTK Beginner Join Date: Oct 2007 Posts: 41	Its not a lot of dirt. The mechanic stuck a dirty rag around the connecting rod and some dirt was laying in the area around the connecting rod. I have another? How should I clean the studs that come from the case that hold on the cylinder? They have some rust build up from the coolant.

09-24-2008	#7 (permalink)
94fmfkx250 Newbie Join Date: Jul 2008 Posts: 16	must be a **** poor mechanic

09-29-2008	#8 (permalink)
gaz Turtle Wax Taster BTK Intermediate Join Date: Apr 2006 Posts: 184	I use a wire brush thats used on suede shoes. It looks like a tooth brush but of soft wire. works great.

09-29-2008	#9 (permalink)
Fatcat 1 Finally Got Into First Gear BTK Beginner Join Date: Jul 2008 Posts: 73	I wouldn't go back to him!! The area anywhere near an open bottom end should be hospital clean!! (including rags)

09-29-2008	#11 (permalink)
jdager Still On The Kickstand BTK Beginner Join Date: Apr 2008 Posts: 40	take it back to the mechanic and let him clean it, although he may use dirty rags again...

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