(800) 853-2651
SHOP NOW

OT Honda motorcycle ?

P

pikewi

Member
Hey guys. Can't find a good bike board but you always come through with the OT stuff.
Anyhoo, I have a few old Honda bikes and my 78 400A has a problem. When I open up the throttle it just bogs down. It runs well at slower speeds but if I try accelerate quickly it wants to shut down. I suspect a fuel delivery problem but don't know what to do about it. Any ideas?
Thanks
Pike
 
Remove carb disassemble as much as you can. Pay attention
how the air screws come out. Count the revolutions while
screwing them IN. So, if the air screws in one and half turns
IN then stops. That's where it NEEDS to be when assembly is
made. Just screw the air jet IN UNTILL LIGHTLY SEATED
then screw it out one and half turns. It's set !!!! Remove
everything you can. Being careful of the float bowl gasket as it
may break . No big deal as any Honda motorcycle shop can
get the gasket. After you remove the float bowl there's a main
jet and the float , needle valve. Carefully remove those parts.
Get a can of GOOD carb and choke cleaner. Spray everything.
Including the holes in the carb. They are vents. That must be
open and clean. Clean the needle and main jet. Small holes in
main jet must be clean and free of the smallest amount of dirt
crud. Install everything. Clean!!! May want to remove and drain
and flush the tank clean too. Install a fuel filter. New gas lines.
Go ride !!!! Oh clean your air filter too or replace!!!
 
When was the last time you cleaned or replaced the air filter??? If clogged it will cause that as will a choke not opening up all the way. Do not know that bike as such but have 2 CB360Ts plus a CL350 and a CB550 on the place and also a Yamaha 750 special
 
OK Thanks. I think the filter is OK. Will check the choke. This bike has only 5400 mi. on it but I will clean carbs. I had to do that on my CB 450 and took me 2 days. (failing eyesight).
Pike
 
If you take the carbs apart check the diaphragms with a bright light to see if you have a hole in them. I assume the carbs have diaphragms.
 
No never had had any problems out of it in that way. Carbs on the other hand I hate them
 
Tried all the above and problem remains. Will try hondatwins.net. Thanks
I am with old. Those carbs are a bugger.
Pike
 
You must log in or register to reply here.

Similar threads

G
OT Honda Small Engine Gas Cap
Replies
2
Views
366
DeltaRed
D
Majorman
Friday Compilation 23/2
Replies
2
Views
322
Brown David
Brown David
J
Won't fire.
Replies
0
Views
376
winston-HT
W
M
4020 Running rough
Replies
11
Views
611
dieselade
D
E
Lift arms leaking down after new pump
Replies
14
Views
2K
EffinNewGuy
E
Tractor Parts Tractor Manuals

We sell tractor parts! We have the parts you need to repair your tractor - the right parts. Our low prices and years of research make us your best choice when you need parts. Shop Online Today.

Copyright © 1997-2024 Yesterday's Tractor Co.

All Rights Reserved. Reproduction of any part of this website, including design and content, without written permission is strictly prohibited. Trade Marks and Trade Names contained and used in this Website are those of others, and are used in this Website in a descriptive sense to refer to the products of others. Use of this Web site constitutes acceptance of our User Agreement and Privacy Policy TRADEMARK DISCLAIMER: Tradenames and Trademarks referred to within Yesterday's Tractor Co. products and within the Yesterday's Tractor Co. websites are the property of their respective trademark holders. None of these trademark holders are affiliated with Yesterday's Tractor Co., our products, or our website nor are we sponsored by them. John Deere and its logos are the registered trademarks of the John Deere Corporation. Agco, Agco Allis, White, Massey Ferguson and their logos are the registered trademarks of AGCO Corporation. Case, Case-IH, Farmall, International Harvester, New Holland and their logos are registered trademarks of CNH Global N.V.

Yesterday's Tractors - Antique Tractor Headquarters
Website Accessibility Policy

Back
Top