Question about Dynojet Cycling

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Hi,just got a dynojet stage 1/3 kit for my 1980 honda cb650, it's on standard air box, but 4 into 1 exhaust, I take it I should use the stage one kit. Also I have no instructions can you help please.......................................cheers......paul

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Intended for motorcycles with a stock engine using the stock airbox, air filter and stock pipe. Stage 1 kits are fully adjustable to allow the use of a well designed aftermarket pipes and stock replacement air filters like K&N. Stage 1 kits are designed to improve throttle response and driveability and in most cases power increases of approximately 5% throughout the entire power range can be achieved.


STAGE ONE INSTRUCTIONS
1. Remove the vacuum slide from the carbs. Remove the stock needles & spacers, noting the order of
assembly. Locate the slide lift holes (Fig. A), with the slide drill DD# 14 supplied, enlarge your slide lift
holes. The picture may not show your slide exactly, enlarge your slide lift hole or holes depending on your
model. Do not drill any new lift holes. Do not drill the needle hole.
2. Install Dynojet needles on groove #4, using all stock spacers. Install the Dynojet washers (2 per
needle) above the E-clip.
3. Remove the stock main jets and replace with the Dynojet main jets provided. If you are running with
stock exhaust, use the DJ110 main jets. With an aftermarket header or slip-on with high flowing baffles,
use the DJ116 main jets. Be sure that the jets you are changing are the main jets.
4. Locate the fuel mixture plug (Fig. B), if you see a screw head, proceed to adjusting procedure. With the
DD #5/32 drill bit provided, carefully drill thru the plugs. Note: the mixture screw is directly underneath this
plug, be ready to pull back on the drill the instant you break thru. Use screw provided to secure and
remove the plug. Carefully turn mixture screws clockwise until they seat, turn out 3 turns.


For further info on this, visit: http://www.dynojet.com/jetkits/motorcycle/honda.aspx

You can find the manual for the model you are searching for. Follow the 1st column "CC" to find 650cc models and you can find your specific model after that.

Thanks for asking.
Regards,
Arvind S Iyer

Posted on Oct 15, 2010

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