I’m new here and new to the Blaster community. I’m very familiar with two strokes but I’m coming from MX bikes.
I just picked up a cherry all original 91 Blaster from the original owner. It probably has 10-12 hours on the whole bike and is completely totally stock. Truly a barn find. I just brought it home last night but the owner tells me he put a new stock replacement air filter in and cleaned the carb. I don’t believe it’s ever had any other wrenches turned other than the occasional oil change. Again, I’ve not had time to even take the seat off yet but I expect to find whatever it was originally equipped with in place. Air box lid/snorkel or however they come.
In my infinite wisdom, I have gotten carried away and agreed to buy another Blaster I found on Craigslist. This one supposedly has a fresh top end, brand new FMF pipe and silencer, and a Keihin PWK39. I’ll be buying this one mostly for these parts, and also as a donor for it’s hydraulic brakes. The guy claims it rips and I’ve talked with him enough that I believe him to be a fairly competent tuner.
My questions are....is the 39mm carb way too much for an otherwise stock (minus a pipe and maybe some intake mods) Blaster? Is this a common conversion? I actually have a spare PWK38 from my KTM 250 that I could slap on one of the blasters if that’s not too much carb. Is there a recommended starting point with the jetting on a PWK 38 or 39? I’m capable of fine tuning but I’d like s good reference point.
If this is way too much carb like I expect it may be...where should I start with the stock Mikuni?
Also for the intake side...what’s the best way to go? Is there simply a lid or snorkel that I can remove from the stock air box? I’d like to use the factory foam filter and don’t want to run a pod filter or anything like that.
Anything else a newb should know?
Thanks
I just picked up a cherry all original 91 Blaster from the original owner. It probably has 10-12 hours on the whole bike and is completely totally stock. Truly a barn find. I just brought it home last night but the owner tells me he put a new stock replacement air filter in and cleaned the carb. I don’t believe it’s ever had any other wrenches turned other than the occasional oil change. Again, I’ve not had time to even take the seat off yet but I expect to find whatever it was originally equipped with in place. Air box lid/snorkel or however they come.
In my infinite wisdom, I have gotten carried away and agreed to buy another Blaster I found on Craigslist. This one supposedly has a fresh top end, brand new FMF pipe and silencer, and a Keihin PWK39. I’ll be buying this one mostly for these parts, and also as a donor for it’s hydraulic brakes. The guy claims it rips and I’ve talked with him enough that I believe him to be a fairly competent tuner.
My questions are....is the 39mm carb way too much for an otherwise stock (minus a pipe and maybe some intake mods) Blaster? Is this a common conversion? I actually have a spare PWK38 from my KTM 250 that I could slap on one of the blasters if that’s not too much carb. Is there a recommended starting point with the jetting on a PWK 38 or 39? I’m capable of fine tuning but I’d like s good reference point.
If this is way too much carb like I expect it may be...where should I start with the stock Mikuni?
Also for the intake side...what’s the best way to go? Is there simply a lid or snorkel that I can remove from the stock air box? I’d like to use the factory foam filter and don’t want to run a pod filter or anything like that.
Anything else a newb should know?
Thanks