1998 summit

young-gun

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Buddy just picked one up, sent me these: ImageUploadedByTapatalk1435195177.511838.jpg ImageUploadedByTapatalk1435195192.252014.jpg
The 90 on back of engine (mag side), is this a missing oil line? I have no experience with 670's.
Thanks
 

Modman

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Its just a vent for the magneto as mentioned. no need to cap it. The one above it with the black hose is the vacuum line for the fuel pump. The 670's were an oil lubed bearing from the injection mixture, not ISOFlex lubed.
 

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hanky670

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Ya they used that vent for the HAC system if it's still installed unless it's a x model which had dpm
 

neilsleder

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Its just a vent for the magneto as mentioned. no need to cap it. The one above it with the black hose is the vacuum line for the fuel pump. The 670's were an oil lubed bearing from the injection mixture, not ISOFlex lubed.

What's with the 02 sensor in the pipe? Nice looking motor!


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Modman

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What's with the 02 sensor in the pipe? Nice looking motor!


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Thanks, there were a lot of hours in that sled. 02 sensor was for the wideband Air/Fuel gauge. Needed a way to confirm EGT readings because of porting, head and fuel type. Wasn't uncommon to see 1350-1380 on the EGTs with that sled, she'd make good power up there.
 

Joholio

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Hi my buddy keeps his old 670x at my place and said my boy could run it. Looking to raise the steering post 3" minimum. Maybe a 144"...? Pipe etc... What works best? You got any parts layin around??
 

tex78

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Talk to Tyler about steering post joel, he has to do les's sled, so it would be easy to do two

sent while drinking tea's
 

neilsleder

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I know a welder that would lengthen the post or build a spacer


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250mark1

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Hi my buddy keeps his old 670x at my place and said my boy could run it. Looking to raise the steering post 3" minimum. Maybe a 144"...? Pipe etc... What works best? You got any parts layin around??

i have a 3" or 4" rox non adjustable riser if you need one off my 96 summit 670 that i sold
 
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