crankcase

Just wondering if anyone has had a problem with the front rocker cover gasket blowing out.there didnt seem to be anything abnormal until it popped out and the motor quit. It restarts but im thinking i may have to do major surgery if its not a plugged breather hose.Any ideas?

Still cleaning out the garage.... I've got an exactrep crankcase breather for sale. I had it on my bike for less than a season. Yours for $75 shipped in the continental US. The $75 doesn't include the COPs kit, but the kit is available in my other post.

#193 Helps the engine breathe better taking the strain off the original breather box and stops oil being forced up to the airbox. (then 'seeping' over the carbs). Includes screw in oil filler nozzle, stainless braided hose, and red 'K&N' breather filter. Fits all models '85-'07 Price...

Hi guys, I am new to the forum and the Vmax as well. I got a hold of an 85 Vmax with 24K miles that had been sitting for at least 6 years. I spent the last two months rebuilding the carbs, brake cylinders, clutch cylinders and fuel system. I finally got it running again, and on the maiden...

Hi folks! So I'm brand new to this forum, and brand new to major engine repair in general, so please be kind. I'm 38 and have worked on my own cars for years. I recently bought a couple of parts Nighthawks and put together a working bike, so I thought the next natural step in progression...

When you remove the left-side crankcase cover so that you can turn the engine over by hand to check valve clearance does the cover gasket "survive" or does it generally need replacement at the same time? Thanks, John

Couldn't decide if this post should be under Carb or Engine heading so. I have a 1/2 inch hose that goes between the Air Box and a nipple in the center of the crankcase that I saw called a "crankcase breather hose". I need to replace it as it did not survive my last removal of it. The problem...

Hope everyone is doing okay. Question regarding Ninjaneer's excellent crankcase breather rebuild post from way back in 2011 (see it at http://www.vmaxforum.net/showthread.php?t=17004) He mentions using "Yamabond" a few times, but when I look up "Yamabond" on Google, I see there are...

I believe there is a oil passage mod or extra hole that is drilled in the main bearing area of the casing, does anyone have pictures of this?

Here's the first one as an example of what's being made right now. Made from stainless and polished, I'm probably going to etch a "V4" logo on them or most of them. Although stainless is a difficult material to work with you can't beat it for a trouble free surface as it won't corrode and can...

It is not easy connecting this hose to the airbox before connecting the airbox to the carbs. Mine is too short. Is yours? Has anyone replaced the hose with a hardware store hose and if so what size hose fit for you. I want to replace mine and add a little length to it for easier...

I went thru my collection of muck looking for some sort of crankcase sealer. For in-between the 2 crankcase halves. Can I use this stuff, or do I need to go out and buy something else? :ummm:

Thinking out loud here: I know that with the stage seven and Morley carb kits, that you add a tee into the stock breather and run a hose into the oil fill. The benefit gained is to add extra venting to the crankcase to help with ring sealing. What benefits (if any) would be had to adding this to...

I have K&N air filters, the crankcase breather canister or oil/air seperater is connected to the front two air filters with rubber lines. Two larger lines come up from the crankcase and plug into the bottom of the breather canister. I started investigating this because of oil around the carbs...

So you pull in from your joyride with a stupid *** grin that your Max stretched across your grill. Another satisfactory run. You look at your machine with awe and delight, but it quickly morphs into disappointment when your peepers spy oil splattered across your stator or clutch cover. Upon...

so if i'm not mistaken, my max is weeping oil from the left-hand crankcase breather cover bolt. 1) what could have happened to have caused this? age? normal wear? it's an '04 with 38K miles. something like, i don't know, causing too much pressure? 2) what can i do to fix this? can i simply...

i need some advice about the crankcase breathing hose. where can i find a hose with a restrictor. will only that stop oil coming out. will my engine breathing will be good or i will have other problems. what have you done to solve this problem??

I was reading on Sean Morley's website about his Muscle Jet Kit, and he had some verbiage in there about how the crankcase breather that is routed to the oil fill cap helps with ring seating, power and economy. Now, obviously it is installed when the rest of the kit is in place and bigger...

omg ive been trying to attach this hose for like 2 hours and i just cant get it......is there a trick to this? now ive managed to get it disconnected from the air box AND the crank case and cant get it back on....tried airbox first and crankcase first etc etc etc....i need this damn bike fixed...

Ok i have seen these on a few maxs but have never seen any for sale im looking for the chrome cover for the crankcase breather, anybody know who makes em? JIM