Rk tek 800 ho drop in kit

HIGH ALTITUDE · Dec 17, 2008

Anyone running this in their '06 summit x?
How is it working?
Jetting? Needle clip position? Stock pilot jet? Altitude? Race fuel?
I ride renshaw, valemount area.
This step is new territory for me. I appreciate any feedback.
Thanks

revpilot · Dec 18, 2008

HIGH ALTITUDE said:
Anyone running this in their '06 summit x?
How is it working?
Jetting? Needle clip position? Stock pilot jet? Altitude? Race fuel?
I ride renshaw, valemount area.
This step is new territory for me. I appreciate any feedback.
Thanks

I love mine in my 06 but I can't remember what I ended up with as far as jetting. I ride at 7-10k I remember not being able to lean it out as much as was recommended. I run some Torco race fuel concentrate through mine and it seems to work. I'm right on the edge of lean so on a really cold crisp morning I run my carb heat to fatten it up a little usually just until we get up in altitude or it warms up.

SnowSnob · Dec 18, 2008

Go onto Dootalk.com and do some searching, lots of threads about it and on here also but the search function sucks on here.

Now you know Kelsey has 2 kits, the drop-in pistons which needs matching domes and mpem recurve or the replacement pistons which don't need the domes but also don't get as much performance out of them.

Personally I would save up your money and opt for a Big Bore

milehighassassin · Dec 18, 2008

SnowSnob said:
Now you know Kelsey has 2 kits, the drop-in pistons which needs matching domes and mpem recurve or the replacement pistons which don't need the domes but also don't get as much performance out of them.

The pistons are identical. You only get more performance out of the ones with the domes because you are adding more compression.

Here are Kelsey's instruction for this kits:
http://www.2strokeheads.com/info/734-827-DOO-kit-installation2009.doc

Found here:
http://www.2strokeheads.com/howto.htm

Wildman · Dec 18, 2008

:beer;I did a drop in on my 06 didn't see much differance other then when you were making several hard climbs I didn't get the power fade as bad.

I have an 07 800R had the crank trued and the 860BB done I would save your money and go all the way

The Drop in is good if you just want to freshen up that top end, or you have an 05 and your rings are flaking.

Dunkmaster · Dec 18, 2008

I bought the RKT kit with the new heads, cooling cover, drop in pistons, and the cylinder porting for my 06 800. I just bought the setup this fall so I don't have any real miles on it yet. This is the setup I'm starting with on the carburetors.

Mains: 410 (440 stock) (Kelsey's recommendation for my setup)
Needles: Stock needles raised 0.030" over stock position (Dropped c-clip one notch with 0.020" shim)
Fuel screws: 1.75 turns out (stock 1.5 turns)
Pilot Jets: 17.5 (stock)

I've just cruised around locally taking it easy. It idles really good but it is rich (diesels a bit) around 5k rpms. Seems to clear up a bit around 6k rpms. I going to adjust the fuel screws back to 1.5 turns out and see if that cleans things up a bit.

ChickenMan · Dec 18, 2008

I got the drop ins with the recurve

I run 370's and clip in the middle

Ride Valemont

madmax · Dec 18, 2008

The RKT stuff works as advertised. Have about 4 rides on my 860 kit and it rocks. I know the 840 kit is very similar.

Makaveli_Rev · Dec 19, 2008

Put one on the my buddies sled end of last year. We never really got it jetted or clutched right for the last couple rides but when it did hit 8200 and didn't bog it was a beast, it beat my xp. We rejetted leaner (recommended by kelsey) over the summer and put on a dynamoe Joe Clutch Kit, i have a feeling my xp is screwed

SnowSnob · Dec 19, 2008

milehighassassin said:
The pistons are identical. You only get more performance out of the ones with the domes because you are adding more compression.

Here are Kelsey's instruction for this kits:
http://www.2strokeheads.com/info/734-827-DOO-kit-installation2009.doc

Found here:
http://www.2strokeheads.com/howto.htm

I could have sworn that the "Drop-Ins" were a hemi style and therefor will not work with the stock head.

Boondocker_153 · Dec 28, 2008

I put the drop in kit in my 02 800 and it is AWESOME.

Just follow ALL of Kelseys instructions and your sled will ROCK!:face-icon-small-hap

rocks rev · Dec 28, 2008

SnowSnob said:
I could have sworn that the "Drop-Ins" were a hemi style and therefor will not work with the stock head.

I had stock pistons+RKT high altitude domes and had to get different domes for the drop in kit.

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Rk tek 800 ho drop in kit

HIGH ALTITUDE

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revpilot

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SnowSnob

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milehighassassin

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Wildman

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Dunkmaster

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ChickenMan

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madmax

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Makaveli_Rev

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SnowSnob

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Boondocker_153

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rocks rev

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