[Honda_Prostitute86]

Just wanted to share a couple of pics on my build, that I'm just about finished with. I have spent almost 5 months on it, spending atleast 1-2 hrs on it every morning when I got home from work. But she is looking at the sunlight today.

 

[fishfiles]

WOW , does your bike have a name ? --- is that red tube a 3" snorkel ? if so any problems with carb tuning ?

 

[Honda_Prostitute86]

Hey fishfiles. I just turned over the motor yesterday to listen to it run. I'm using a carb from my Honda Rancher until my Keihin arrives in the mailbox. But it was wanting to flood itself out when I would give it some throttle. I don't have a air box for it at the moment. Just a U-pipe running off of the carb, into a 2.375" pvc straight pipe. The pipe coming out from the front fender is for my snorkel. I bought a cheap, cold air intake pipe off of Ebay, that is for a Kia Sportage. I had a filter on it when I started the motor, but took it off to see if there would be a difference in the idle. Nothing changed tho. I believe I'm going to just wait for its carb to get here before I start changing too many things. But I will keep you updated with it. Btw, she did run and idle with the filter on. I think the carb just needs to be adjusted for the bike, but I'm gonna put it back on my Rancher tho. Lol

 

[Honda_Prostitute86]

Oh yeah, our club has named her, Prostitute#86. ?

 

[fishfiles]

the snorkel tube size seems to have effects on performance , also a custom air box could change things --------- I have never snorkeled a 350, I've done 300's and 450 , 1 1/2 pipe works for the 300 , and 2 inch on the 450 , I would think 2 inch would be about right for the 350 especially since the 350D has extra valves so bring in more air ------ I may be wrong but think anything over 2 inches might be hard to fine tune , as I have seen it on Yamahas that don't like big pipes , but every engine seems to have it's own mind on what it wants

 

[SamUK]

I think you’ll get away with your large snorkel riser providing you reduce it down to 1 1/2” just below the fender right into the air box. I’d recommend running an airbox and filter once you get your carb back.
I’ve read quite a few stories on 350’s, some use 1 1/2” and some use 2”, I guess it all depends on snorkel routing and elevation. Hopefully you can plumb it up and have very few issues, my 300 was a PITA to fine tune once snorkelled.

 

[Honda_Prostitute86]

I appreciate the info. I'll most definitely check into that.

 

[Honda_Prostitute86]

the snorkel tube size seems to have effects on performance , also a custom air box could change things --------- I have never snorkeled a 350, I've done 300's and 450 , 1 1/2 pipe works for the 300 , and 2 inch on the 450 , I would think 2 inch would be about right for the 350 especially since the 350D has extra valves so bring in more air ------ I may be wrong but think anything over 2 inches might be hard to fine tune , as I have seen it on Yamahas that don't like big pipes , but every engine seems to have it's own mind on what it wants

Hey man, you were right. It was indeed too big of a pipe. Instead of disconnecting my 3" pipe, I used Gorilla Tape and covered about 3/4 of the inlet. Right out the gate, she has been running top notch, with no more back firing as well. Man, I really appreciate the insight on this!

 

[Honda_Prostitute86]

I think you’ll get away with your large snorkel riser providing you reduce it down to 1 1/2” just below the fender right into the air box. I’d recommend running an airbox and filter once you get your carb back.
I’ve read quite a few stories on 350’s, some use 1 1/2” and some use 2”, I guess it all depends on snorkel routing and elevation. Hopefully you can plumb it up and have very few issues, my 300 was a PITA to fine tune once snorkelled.

I reduced the airflow on the inlet with some gorilla tape. I covered about 3/4 of the pipe, and it has been running great ever since. Thank you for the advice. You saved me money, and another headache. Lol

 

[fishfiles]

the snorkel tube size seems to have effects on performance , also a custom air box could change things --------- I have never snorkeled a 350, I've done 300's and 450 , 1 1/2 pipe works for the 300 , and 2 inch on the 450 , I would think 2 inch would be about right for the 350 especially since the 350D has extra valves so bring in more air ------ I may be wrong but think anything over 2 inches might be hard to fine tune , as I have seen it on Yamahas that don't like big pipes , but every engine seems to have it's own mind on what it wants

Hey man, you were right. It was indeed too big of a pipe. Instead of disconnecting my 3" pipe, I used Gorilla Tape and covered about 3/4 of the inlet. Right out the gate, she has been running top notch, with no more back firing as well. Man, I really appreciate the insight on this!

Glad you are on the right trail ----- when I seen your huge inlet I wonder how that was going to work out ---------- I forgot to mention to you , one way of restricting the air flow for quick testing is a shop rag , fold it over twice and put it over the inlet with tape holding it , let it suck air thru the rag to restrict it , run it and see results , no improvement then 4 folds and so on ---- a friend with a Yamaha who ran 2 inch pipe and ran bad , stuck a 2 inch by 1 1/4 inch bushing in the end of his pipe and it is running fine now