honda oem vs. hot rods for crank

mattbmx63
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mattbmx63
Edited Date/Time 1/27/2012 5:40pm
I'm replacing the crank in my '09 crf450r. i was wondering what the quality differences were in going oem honda vs. using hot rods or someone else. Any opinions?
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Bryan_Morton
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Bryan_Morton 1/14/2012 7:34pm
1/14/2012 7:34pm
I would always say go with oem. Honda has been around alot longer than hot rods or any other after market company. they make a really good product
mattbmx63
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mattbmx63 1/15/2012 7:10pm
1/15/2012 7:10pm
Anyone ever had a crank rebuilt? Looks like a little bit cheaper, but I don't know if its any better than a new oem crank.
lumpy790
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lumpy790 1/15/2012 8:47pm
1/15/2012 8:47pm
typically its an hours labor just to press the rod in....ofter costs more than a whole crank. Wiseco crank comes with new main bearings and gaskets.

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motoracer633
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motoracer633 1/16/2012 8:48am
1/16/2012 8:48am
Id never had an issue with hot rods cranks, but we sold a few of those wiseco kits based on price and 3 out of 3 went bad quick. i dont know where they are sourced but i personally highly suggest against it. these were in the yz85 motors that i built once a month. never had a problem after going back to hot rod.
motoracer633
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motoracer633 1/16/2012 8:50am
1/16/2012 8:50am
if you can rebuild yourself its cheaper, but if you are paying a shop i would lean torward the complete crank unless you know the mechanic's abilities well.
mattbmx63
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mattbmx63 1/16/2012 6:17pm
1/16/2012 6:17pm
I'm doing it myself and am more than up to the job. I think I'll just go with oem. what are some other parts to replace while in there? I figured I would do all engine and tranny bearings and seals, they aren't too much.

I thought there were some issues with '09s and one gear going bad?

Whats the lifespan on a head? I did new intake valves last winter at 60 hours for piece of mind and the fact I got a great deal on them. How long should I expect valve guides to last?

Bike has had eddies tune, full yosh ti and je 13.5:1 since day one. Never any issues, but would like to make sure I don't run into any, plus its cold out and its something to do!
motoracer633
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motoracer633 1/16/2012 8:11pm
1/16/2012 8:11pm
i was referring to pressing the crank and dialin it in. i would def put new valves in it and check the valve seats in the head. might check the cups. ive seen those crack. valve guides will last the life of the head in my exp. but i also work the retail market where alot of my customers aren't as proactive with maintenance hence the valve seats wear or the thing grenades. my pro riders are lack on maintenance no matter how much i preach so i get the same result on the practice bikes.
motoracer633
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motoracer633 1/16/2012 8:14pm
1/16/2012 8:14pm
check chain sliders and tensioner. replaced alot of honda tensioners chains and slides.
mattbmx63
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mattbmx63 1/16/2012 10:32pm
1/16/2012 10:32pm
the seats looked good last year and the valves have never needed to be shimmed. I might just buy a new head and then sell mine on ebay. I'd rather spend a little now and not have to worry about it at all. In the end that might be better then getting the seats cut.

Am I right that the seats can't be lapped?

I take it your refering to the cam chain, right? That will be replaced and I've heard of issues with the tensioner. I had a tokyo mods one but never installed it and ended up selling it.

The stock clutch finally went. Even with hinson springs and magura hydro it destroyed the baskey, inner hub and pressure plate. was looking at hinson 6 spring or doing the 6 spring setup on ebay and hinson basket.
motoracer633
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motoracer633 1/17/2012 3:47am
1/17/2012 3:47am
six spring is stronger but in my exp they dont last a whole lot longer than stock when abused. great plan for the head. it should sell quick. lotsa blown engines out there.
mattbmx63
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mattbmx63 1/17/2012 5:55am
1/17/2012 5:55am
The Hinson ones aren't lasting?

The stock one was destroyed and I'm not a clutch abuser. After 110 hours the plates all still measure in spec, but basket and hub are Groved worse then I've ever seen and pressure plate was ground way down. I thought Hinson stuff lasts a lot better?
motoracer633
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motoracer633 1/17/2012 6:56am
1/17/2012 6:56am
cost/wear on pro practice bikes not as good as stock. i would be up in the air on a personal bike since im easy on clutches as well. i would suggest replacing the needle bearing/collar and thrust washer when replacing a new basket/hub.
mattbmx63
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mattbmx63 1/17/2012 7:25am
1/17/2012 7:25am
I think I'll just get a better basket and stock hub, pressure plate. Looks like it all started with the basket. Looks like this should be a fun project
motoracer633
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motoracer633 1/17/2012 9:39am
1/17/2012 9:39am
the needle bearing and on models with the bushing rocking of the clutch can cause the basket to go. also the dampners in the hub.
mattbmx63
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mattbmx63 1/17/2012 10:42am
1/17/2012 10:42am
Basket is grooved really bad. Looks like the fibers wouldn't release and caused all clutch slipping to be against the pressure plate which the fibers dug down into.
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mxb2 1/17/2012 11:28am
1/17/2012 11:28am
mattbmx63 wrote:
I'm doing it myself and am more than up to the job. I think I'll just go with oem. what are some other parts to replace...
I'm doing it myself and am more than up to the job. I think I'll just go with oem. what are some other parts to replace while in there? I figured I would do all engine and tranny bearings and seals, they aren't too much.

I thought there were some issues with '09s and one gear going bad?

Whats the lifespan on a head? I did new intake valves last winter at 60 hours for piece of mind and the fact I got a great deal on them. How long should I expect valve guides to last?

Bike has had eddies tune, full yosh ti and je 13.5:1 since day one. Never any issues, but would like to make sure I don't run into any, plus its cold out and its something to do!
The issue was a recall with the decomp pin.
mattbmx63
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mattbmx63 1/17/2012 5:13pm
1/17/2012 5:13pm
not that issue, i thought i remember a bunch of people saying one gear would break. ill just have to really inspect them good.

any complaints with service honda? they look like they have the best prices

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CamP
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CamP 1/17/2012 5:30pm
1/17/2012 5:30pm
mattbmx63 wrote:
not that issue, i thought i remember a bunch of people saying one gear would break. ill just have to really inspect them good. any complaints...
not that issue, i thought i remember a bunch of people saying one gear would break. ill just have to really inspect them good.

any complaints with service honda? they look like they have the best prices
Service Honda has decent prices but Cycle Central Powersports are much lower. See the link I posted above.
mattbmx63
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mattbmx63 1/17/2012 5:50pm
1/17/2012 5:50pm Edited Date/Time 1/17/2012 5:51pm
i just checked them out. any issues with them? hate to spend all this money on a place i've never done business with.

am i nuts doing every seal and bearing in the motor, trans included?
CamP
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CamP 1/19/2012 8:17am
1/19/2012 8:17am
mattbmx63 wrote:
i just checked them out. any issues with them? hate to spend all this money on a place i've never done business with. am i nuts...
i just checked them out. any issues with them? hate to spend all this money on a place i've never done business with.

am i nuts doing every seal and bearing in the motor, trans included?
I've purchased about $900 in OEM parts from them without issues.

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