CRF230F/L PWK 38

[crackerjac]

I received a new aftermarket Keihin PWK 38 with some parts in trade and at the moment the only bike I could possibly use it on would be the CRF230F.  Mostly stock with ported intake and open air filter and 250X exhaust.

Too much carb? or with some jetting mods would it work? Thoughts on jetting to start off with?  Came stock with Keihin #55 pilot #170 Main

Did a a search here and Google but brought up nothing.

[SteveThe Snakes]

??

[adnohguy]

For any carb over 32mm on a 230f:
34,36 or 38 mm carb:
Custom, 1 off, oversized intake valve(s)
Custom, 1off, porting.
Custom,1 off, intake manifold.
Custom 1 off air filter housing to carb hose.
Sounds like a 4 valve Suzuki cylinder head with 300cc build for Greenhuman

Of purchase a new 300 cc klx and shoe horn the engine in a 230 just so you can use a 38 mm carb. (Maybe)

[crackerjac]

14 hours ago, adnohguy said:

For any carb over 32mm on a 230f:
34,36 or 38 mm carb:
Custom, 1 off, oversized intake valve(s)
Custom, 1off, porting.
Custom,1 off, intake manifold.
Custom 1 off air filter housing to carb hose.
Sounds like a 4 valve Suzuki cylinder head with 300cc build for Greenhuman

Of purchase a new 300 cc klx and shoe horn the engine in a 230 just so you can use a 38 mm carb. (Maybe)

Kinda figured that would be the case, lol.  It's a 450X frame so maybe it's time to finally find a larger motor for this frankin bike.

[SteveThe Snakes]

Just because you put a gigantic carb on a bike doesn’t mean it will perform. The size of the ports are so small you may have a very difficult time jetting it and having it run well. 

[bajatrailrider]

38mm carb 230 don't even think of it

[VortecCPI]

That is a a LOT of carb.  Back in the old days 300cc 2T sled engines used 38mm carbs.

Edited September 30, 2019 by VortecCPI

[bajatrailrider]

Going back more old days tt500/650cc. 38mm carb.

[Don Tiemann]

I looked at a used Yamaha Tenere 250 a couple of weeks ago.  Prior to going over there to take a look, I asked the seller on the phone if his model had EFI or a carb.  He said it had the expensive Keihin PWK pumper carb (?)   Geez never seen one of them.  So I headed over there and  the bike had EFI.  Geez.  I don't know what that guy was smokin'.

[SteveThe Snakes]

There is your 38mm PWK on a 125 stock. But not a four stroke and that one is bored out to 39.5mm. ?

[bajatrailrider]

I looked at a used Yamaha Tenere 250 a couple of weeks ago.  Prior to going over there to take a look, I asked the seller on the phone if his model had EFI or a carb.  He said it had the expensive Keihin PWK pumper carb (?)   Geez never seen one of them.  So I headed over there and  the bike had EFI.  Geez.  I don't know what that guy was smokin'.

That goes along with my friend. He had a 01 Dodge turbo Diesel sitting for years. I asked for months to buy it. Many times asked him 5 so stick or 6 sp. It had no shift ball he said many times 5 sp. Had it towed from beach to my house. 6sp stick wow owner does not know how many gears

There is your 38mm PWK on a 125 stock. But not a four stroke and that one is bored out to 39.5mm. [emoji2956]

I be there in a month I want to ride it

[SteveThe Snakes]

41 minutes ago, bajatrailrider said:

I’ll be there in a month I want to ride it

Well check out the turning radius. It doesn’t turn. Your just suppose to lean it over. ?