New build
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Novice
Joined: Aug 2020
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From: Kentucky
New build
I have an 05 Road king police. I order a 98” big bore kit from fuel Moto and S&S easy start 585 cam kit. Do I need to run break in oil when I do this build?
Do I need to add decompression switches with the easy start cams? Please add any other suggestions but don’t be an A**ho**
Do I need to add decompression switches with the easy start cams? Please add any other suggestions but don’t be an A**ho**
Stellar HDF Member
Joined: Mar 2015
Posts: 2,941
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From: Winnipeg
Fuel moto are great to deal with and more than willing to answer any and all questions you may have. They should be your point of contact as opposed to the myriad of differing input you’ll receive here. Not to say that there are not many knowledge folks here, because there is ...but talk to the crew at fuelmoto.
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Joined: Jun 2006
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From: san antonio
Don't really need break in oil but a good straight weight like Shell Rotella T1 30W or similar would be fine; no synthetic. No, you do not need compression releases with EZ start cams.
one additional thing is the 05 had issues with valve stem seals. I would replace them and if you have a head shop do that then you could cut the heads to get compression up to match.
Last edited by johnwesley; Sep 1, 2020 at 11:18 AM.
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Novice
Joined: Aug 2020
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From: Kentucky
when I called S&S they said the 585s were a great match for FMs 98”.
edit: most conservative guys recommend 195ccp for an all-around good build that doesn't have PMS. Others will go as high as 205ccp. with 10:1 you are looking at about 185 ccp and at 10.5 at 195ccp. Not that you should take my advice but it would be a good question to ask Fuel moto what they recommend to run the 585 cams at
Last edited by johnwesley; Sep 1, 2020 at 11:36 AM.
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Joined: Dec 2005
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From: poway
I talked to FM recently about a 98” kit and they only offer the flat tops and I think that is close to 10:1 which is much better suited to the 570 cam. Thats a good point you bring up.
one additional thing is the 05 had issues with valve stem seals. I would replace them and if you have a head shop do that then you could cut the heads to get compression up to match.
one additional thing is the 05 had issues with valve stem seals. I would replace them and if you have a head shop do that then you could cut the heads to get compression up to match.
Heck at 10 to 1 with the 570 in a bagger, it probably would not need compression releases or the decompress feature on the cams, with a decent AGM battery and 4 gauge cables.
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Joined: May 2014
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From: Fort Worth, TX
I pulled the 585's (gear drive, will sell them cheap) out of my 95" build when I went to 98" because they came on so late. I had them at 193ccp and in my heavy bagger they didn't come alive until 3200rpm. I needed more compression to really make them shine. When I went 98" I dropped the comp and went with CR575's. The bike will have more down low where I want it now...