Madmax31's Forum Activity

New thread KTM airfork question 10/8/2021 12:47 PM

Just picked up a 2019 KTM 350. I've never had air forks and have a few questions. I lose a lot of air quickly....or is this normal? I set it at 165 psi and then a day later it will be 55-65. Is there an o-ring or seal that needs to be replaced or just ... more »

This forum thread has 10 replies.

New thread Cylinder Damage Help 9/1/2021 3:30 PM

I recently had my 83 cylinder bored. During installation, I dropped it breaking off a corner. It's slightly pushed in about .005. Think it would be ok to grind that out so the piston will fit in a use it or should I look into a different cylinder. I

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This forum thread has 8 replies.

New thread Well my weekend ended early 5/24/2021 12:02 PM

1983 YZ 250 bottom end locked up. Looks like a slight detonation on the piston

dizzy
While I have the bottom end apart I was contemplating having the gears tumbled/polished or whatever they do. It's never shifted well or at all under power. How much ... more »

This forum thread has 3 replies.

New thread Maico 440 setup help 5/18/2021 11:06 AM

I recently bought a 78 Maico and had some issues on my first ride. The first thing was the clutch. I noticed it had 0 play in the lever so I adjusted it so it would have approx a 1/4" like most bikes. When I would put it into gear it would lurch and

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This forum thread has 6 replies.

New thread Potential Keefer Sponsor 4/13/2021 8:22 AM

Anyone know who wanted to sponsor Keefer but declined because he's friends with Steve?

This forum thread has 11 replies.

New thread Back protection 3/19/2021 5:25 PM

Any studies done on the best back protection. Would love to see a magazine or someone do a protection review. Hoping some euro mag or something I haven't seen has an in depth review. I don't care about something being too hot or restrictive I race amateur ... more »

This forum thread has 15 replies.

New thread Value Opinion...ISO Evo1 or Evo2 open bike 2/11/2021 5:25 AM

I know it's worth what someone is willing to pay but this seems about $1,500 too high to me or am I wrong? I'm really looking for a 390 but haven't had much luck. I don't want to get into another bike I'm way upside down in. Also interested in any open ... more »

This forum thread has 4 replies.

New thread Custom Seat for Vintage 7/9/2020 1:06 PM

Anyone making custom seat foam for vintage? I'd like to take some of the banana feel out of my 83 YZ250. Like something a little more flat like a modern bike. If not has anyone have any luck making there own and if so a little background would be appreciated. ... more »

This forum thread has 9 replies.

New thread Deal of the Day...1982 BETA MX500 3/4/2020 4:14 AM

Not that I have any interest in buying this but looking at it made me curious. Anyone have any feedback on these? How did they run, hold up, handle? Does look cool and had right side kick. https://www.ebay.com/itm/324091915116?ul_noapp=true

This forum thread has 2 replies.

New thread PulpMX & DV 1/21/2020 11:54 AM

F Wil Hahn and the weekly call in. Until you get to ride the Star bike make it a DV weekly call in. DV...found your soulmate.

This forum thread has 2 replies.

New thread 1983 Honda CR250 Transmission 6/4/2019 7:17 AM

Have a weird issue with my 83 CR250. About 1 time every 7-10 laps I'll have a problem in 3rd gear. I've had bikes pop out of gear before and you click it back in but this is different. It's like the clutch gets pulled in about 80-90% of the way. It only ... more »

This forum thread has 2 replies.

New thread No one has stated the obvious 3/25/2019 11:49 AM

Marvin missed the flag because he can't raise his head high enough to see it with his neck brace. https://i.gifer.com/5xhp.gif

This forum thread has 0 replies.

New thread 1981-83 Honda CR250 Intake 3/20/2019 3:53 PM

I need an intake manifold for an 83 CR250. Ordered one from a guy on ebay Jan 23rd and still don't have it. Two weeks ago he told me it was on its way? Anyone have one? Know where one is in stock? Will a 480 intake fit? Can i clamp it down enough for ... more »

This forum thread has 6 replies.

New thread 1981-83 Honda CR250 Intake 3/20/2019 3:50 PM

I need an intake manifold for an 83 CR250. Ordered one from a guy on ebay Jan 23rd and still don't have it. Two weeks ago he told me it was on its way? Anyone have one? Know where one is in stock? Will a 480 intake fit? Can i clamp it down enough for ... more »

This forum thread has 0 replies.

New thread Vintage at Daytona 3/13/2019 12:25 PM

Does anyone have a link to results? Photos? Anyone here go? If so how about a report, please.

This forum thread has 21 replies.

New thread ISO Moto Van 2/22/2019 5:50 AM

Preferably in the Mid-West.

This forum thread has 17 replies.

New thread Small plastic enclosed trailer 11/15/2018 9:12 AM

I stumbled across a company making a really small, lite plastic enclosed trailer. Anyone know where to find it.

This forum thread has 24 replies.

New thread 1983 CR 250 8/16/2018 11:49 AM

I've tried to get the jetting on my stock carb figured out to no avail. It seems the changes I make have little to no effect. I'm going to buy a 38mm Mikuni flatside and give that a shot. Does anyone have ballpark jetting (slide) specs for that carb? ... more »

This forum thread has 3 replies.

New thread ISO 38mm Mikuni TMX 8/6/2018 2:00 PM

Does anyone have a 38MM flatside? Looking to replace Kehin on 83 CR250. Thanks.

This forum thread has 5 replies.

New thread 1983 Honda CR250 Emulators 7/2/2018 7:44 AM

When adding emulators the directions say that there is one existing hole 48mm from the bottom and to add another. The weird thing is there appears to have been an additional hole drilled, and then soldered back up on my rod. Also, I have 4 holes drilled

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This forum thread has 8 replies.